diff --git a/src/Learning/KWDataPreparation/KWAttributeStats.cpp b/src/Learning/KWDataPreparation/KWAttributeStats.cpp
index 7cd4c6875..6160100b3 100644
--- a/src/Learning/KWDataPreparation/KWAttributeStats.cpp
+++ b/src/Learning/KWDataPreparation/KWAttributeStats.cpp
@@ -269,14 +269,14 @@ void KWAttributeStats::WriteHeaderLineReport(ostream& ost)
 			ost << "\tTarget intervals";
 		else if (GetTargetAttributeType() == KWType::Symbol and IsTargetGrouped())
 			ost << "\tTarget groups";
-
-		// Nombre de parties sources
-		if (nAttributeType == KWType::Continuous)
-			ost << "\tIntervals";
-		else if (nAttributeType == KWType::Symbol)
-			ost << "\tGroups";
 	}
 
+	// Nombre de parties sources, y compris en non supervise
+	if (nAttributeType == KWType::Continuous)
+		ost << "\tIntervals";
+	else if (nAttributeType == KWType::Symbol)
+		ost << "\tGroups";
+
 	// Statistiques descriptives
 	ost << "\t";
 	kwDescriptiveStats->WriteHeaderLineReport(ost);
@@ -330,7 +330,7 @@ void KWAttributeStats::WriteLineReport(ostream& ost)
 	// Initialisation
 	nSource = -1;
 
-	// Evaluation de la variable si discretisation pertinente
+	// Evaluation de la variable si discretisation ou groupement pertinente
 	// dans le cas supervise uniquement
 	if (GetTargetAttributeName() != "")
 	{
@@ -368,6 +368,23 @@ void KWAttributeStats::WriteLineReport(ostream& ost)
 			ost << "\t1";
 		}
 	}
+	// Nombre de partie uniquement dans le cas supervise
+	else
+	{
+		assert(GetTargetAttributeName() != "");
+
+		if (GetPreparedDataGridStats() != NULL)
+		{
+			assert(GetPreparedDataGridStats()->GetAttributeNumber() == 1);
+
+			ost << "\t" << GetPreparedDataGridStats()->GetAttributeAt(0)->GetPartNumber();
+		}
+		// Pas d'infos sinon
+		else
+		{
+			ost << "\t1";
+		}
+	}
 
 	// Statistiques descriptives
 	ost << "\t";
@@ -442,7 +459,7 @@ void KWAttributeStats::WriteJSONArrayFields(JSONFile* fJSON, boolean bSummary)
 		// Initialisation
 		nSource = -1;
 
-		// Evaluation de la variable si discretisation pertinente
+		// Evaluation de la variable si discretisation ou groupement pertinent
 		// dans le cas supervise uniquement
 		if (GetTargetAttributeName() != "")
 		{
@@ -488,6 +505,17 @@ void KWAttributeStats::WriteJSONArrayFields(JSONFile* fJSON, boolean bSummary)
 				fJSON->WriteKeyInt("parts", 1);
 			}
 		}
+		// Dans le cas non supervise, on ecrit eventuellement le nombre de parties
+		else
+		{
+			assert(GetTargetAttributeName() != "");
+			if (GetPreparedDataGridStats() != NULL)
+			{
+				assert(GetPreparedDataGridStats()->GetAttributeNumber() == 1);
+				fJSON->WriteKeyInt("parts",
+						   GetPreparedDataGridStats()->GetAttributeAt(0)->GetPartNumber());
+			}
+		}
 
 		// Statistiques descriptives
 		kwDescriptiveStats->WriteJSONFields(fJSON);
@@ -550,7 +578,7 @@ void KWAttributeStats::WriteJSONArrayFields(JSONFile* fJSON, boolean bSummary)
 			{
 				descriptiveContinuousStats = cast(KWDescriptiveContinuousStats*, GetDescriptiveStats());
 
-				// On prend les bornes issues de l'histogramme dans le cas d'un discretisation non
+				// On prend les bornes issues de l'histogramme dans le cas d'une discretisation non
 				// supervisee MODL
 				if (modlHistogramResults != NULL)
 				{
diff --git a/src/Learning/MHHistograms/MHMODLHistogramAnalysisStats.cpp b/src/Learning/MHHistograms/MHMODLHistogramAnalysisStats.cpp
index 00de9ecac..a472c4ad1 100644
--- a/src/Learning/MHHistograms/MHMODLHistogramAnalysisStats.cpp
+++ b/src/Learning/MHHistograms/MHMODLHistogramAnalysisStats.cpp
@@ -142,10 +142,6 @@ void MHMODLHistogramAnalysisStats::WriteJSONKeyReport(JSONFile* fJSON, const ALS
 	// Nombre d'histogramms interpretables
 	fJSON->WriteKeyInt("interpretableHistogramNumber", GetInterpretableHistogramNumber());
 
-	// Central bin exponents, pour les histogrammes interpretables, et pour le dernier
-	fJSON->WriteKeyInt("centralBinExponent", GetCentralBinExponent());
-	fJSON->WriteKeyInt("lastCentralBinExponent", GetLastCentralBinExponent());
-
 	// Epsilon de troncature
 	fJSON->WriteKeyContinuous("truncationEpsilon", GetTruncationEpsilon());
 
diff --git a/src/Learning/MODL/MODL.cpp b/src/Learning/MODL/MODL.cpp
index 00afe053d..c745e3827 100644
--- a/src/Learning/MODL/MODL.cpp
+++ b/src/Learning/MODL/MODL.cpp
@@ -36,7 +36,7 @@ int main(int argc, char** argv)
 	// Choix du repertoire de lancement pour le debugage sous Windows (a commenter apres fin du debug)
 	// SetWindowsDebugDir("Standard", "IrisLight");
 	// SetWindowsDebugDir("Standard", "Iris2D");
-	SetWindowsDebugDir("TextVariables", "TextLoadFile");
+	SetWindowsDebugDir("Standard", "IrisLightWithTrees");
 
 	// Parametrage des logs memoires depuis les variables d'environnement, pris en compte dans KWLearningProject
 	//   KhiopsMemStatsLogFileName, KhiopsMemStatsLogFrequency, KhiopsMemStatsLogToCollect
diff --git a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.Preparation2DReport.xls b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.Preparation2DReport.xls
index 13f7eaabe..f1db85907 100644
--- a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.Preparation2DReport.xls
+++ b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.Preparation2DReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.PreparationReport.xls
index 64abcac16..9c2d449e5 100644
--- a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
@@ -34,24 +34,24 @@ Value grouping	MODL
 
 Categorical variables statistics
 
-Rank	Name	Values	Mode	Mode coverage	Missing number	Sparse missing number	Constr. cost	Derivation rule
-R01	Class	3	Iris-setosa	0.361905	0	0	3.17805
-R02	Class1	2		0.638095	67	0	3.17805	IfC(EQc(Class, "Iris-setosa"), "setosa", "")
-R03	Class2	2		0.695238	73	0	3.17805	IfC(EQc(Class, "Iris-versicolor"), "versicolor", "")
-R09	SPetalLength	5	1	0.361905	0	0	3.17805	AsCategorical(Floor(PetalLength))
+Rank	Name	Groups	Values	Mode	Mode coverage	Missing number	Sparse missing number	Constr. cost	Derivation rule
+R01	Class	3	3	Iris-setosa	0.361905	0	0	3.17805
+R02	Class1	2	2		0.638095	67	0	3.17805	IfC(EQc(Class, "Iris-setosa"), "setosa", "")
+R03	Class2	2	2		0.695238	73	0	3.17805	IfC(EQc(Class, "Iris-versicolor"), "versicolor", "")
+R09	SPetalLength	5	5	1	0.361905	0	0	3.17805	AsCategorical(Floor(PetalLength))
 
 
 Numerical variables statistics
 
-Rank	Name	Values	Min	Max	Mean	Std dev	Missing number	Sparse missing number	Constr. cost	Derivation rule
-R04	Dummy1	1	0	0	0	0	0	0	3.17805	Copy(0)
-R05	Dummy2	105	0.005121241265	0.9859650261	0.5173966838	0.2650019122	0	0	3.17805	Random()
-R06	LowerPetalLength	10	1	3	2.446666667	0.7433600251	0	0	3.17805	If(LE(PetalLength, 3), PetalLength, 3)
-R07	PetalLength	36	1	6.9	3.686666667	1.80132579	0	0	3.17805
-R08	PetalWidth	21	0.1	2.5	1.175238095	0.7880996979	0	0	3.17805
-R10	SepalLength	31	4.3	7.7	5.827619048	0.8375127846	0	0	3.17805
-R11	SepalWidth	23	2	4.4	3.081904762	0.4284592446	0	0	3.17805
-R12	UpperPetalWidth	11	1.5	2.5	1.692380952	0.2962287527	0	0	3.17805	If(GE(PetalWidth, 1.5), PetalWidth, 1.5)
+Rank	Name	Intervals	Values	Min	Max	Mean	Std dev	Missing number	Sparse missing number	Constr. cost	Derivation rule
+R04	Dummy1	1	1	0	0	0	0	0	0	3.17805	Copy(0)
+R05	Dummy2	1	105	0.005121241265	0.9859650261	0.5173966838	0.2650019122	0	0	3.17805	Random()
+R06	LowerPetalLength	4	10	1	3	2.446666667	0.7433600251	0	0	3.17805	If(LE(PetalLength, 3), PetalLength, 3)
+R07	PetalLength	5	36	1	6.9	3.686666667	1.80132579	0	0	3.17805
+R08	PetalWidth	5	21	0.1	2.5	1.175238095	0.7880996979	0	0	3.17805
+R10	SepalLength	2	31	4.3	7.7	5.827619048	0.8375127846	0	0	3.17805
+R11	SepalWidth	3	23	2	4.4	3.081904762	0.4284592446	0	0	3.17805
+R12	UpperPetalWidth	2	11	1.5	2.5	1.692380952	0.2962287527	0	0	3.17805	If(GE(PetalWidth, 1.5), PetalWidth, 1.5)
 
 
 --------------------------------------------------------------------------------
diff --git a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.khj
index bfc1926d9..f76956d8e 100644
--- a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"preparationReport": {
 		"reportType": "Preparation",
@@ -40,6 +40,7 @@
 				"rank": "R01",
 				"name": "Class",
 				"type": "Categorical",
+				"parts": 3,
 				"values": 3,
 				"mode": "Iris-setosa",
 				"modeFrequency": 38,
@@ -51,6 +52,7 @@
 				"rank": "R02",
 				"name": "Class1",
 				"type": "Categorical",
+				"parts": 2,
 				"values": 2,
 				"mode": "",
 				"modeFrequency": 67,
@@ -63,6 +65,7 @@
 				"rank": "R03",
 				"name": "Class2",
 				"type": "Categorical",
+				"parts": 2,
 				"values": 2,
 				"mode": "",
 				"modeFrequency": 73,
@@ -75,6 +78,7 @@
 				"rank": "R04",
 				"name": "Dummy1",
 				"type": "Numerical",
+				"parts": 1,
 				"values": 1,
 				"min": 0,
 				"max": 0,
@@ -89,6 +93,7 @@
 				"rank": "R05",
 				"name": "Dummy2",
 				"type": "Numerical",
+				"parts": 1,
 				"values": 105,
 				"min": 0.005121241265,
 				"max": 0.9859650261,
@@ -103,6 +108,7 @@
 				"rank": "R06",
 				"name": "LowerPetalLength",
 				"type": "Numerical",
+				"parts": 4,
 				"values": 10,
 				"min": 1,
 				"max": 3,
@@ -117,6 +123,7 @@
 				"rank": "R07",
 				"name": "PetalLength",
 				"type": "Numerical",
+				"parts": 5,
 				"values": 36,
 				"min": 1,
 				"max": 6.9,
@@ -130,6 +137,7 @@
 				"rank": "R08",
 				"name": "PetalWidth",
 				"type": "Numerical",
+				"parts": 5,
 				"values": 21,
 				"min": 0.1,
 				"max": 2.5,
@@ -143,6 +151,7 @@
 				"rank": "R09",
 				"name": "SPetalLength",
 				"type": "Categorical",
+				"parts": 5,
 				"values": 5,
 				"mode": "1",
 				"modeFrequency": 38,
@@ -155,6 +164,7 @@
 				"rank": "R10",
 				"name": "SepalLength",
 				"type": "Numerical",
+				"parts": 2,
 				"values": 31,
 				"min": 4.3,
 				"max": 7.7,
@@ -168,6 +178,7 @@
 				"rank": "R11",
 				"name": "SepalWidth",
 				"type": "Numerical",
+				"parts": 3,
 				"values": 23,
 				"min": 2,
 				"max": 4.4,
@@ -181,6 +192,7 @@
 				"rank": "R12",
 				"name": "UpperPetalWidth",
 				"type": "Numerical",
+				"parts": 2,
 				"values": 11,
 				"min": 1.5,
 				"max": 2.5,
@@ -278,8 +290,6 @@
 				"modlHistograms": {
 					"histogramNumber": 1,
 					"interpretableHistogramNumber": 1,
-					"centralBinExponent": 0,
-					"lastCentralBinExponent": 0,
 					"truncationEpsilon": 0,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0],
@@ -318,8 +328,6 @@
 				"modlHistograms": {
 					"histogramNumber": 5,
 					"interpretableHistogramNumber": 4,
-					"centralBinExponent": 2,
-					"lastCentralBinExponent": 2,
 					"truncationEpsilon": 0.1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,2,3,5,28],
@@ -375,8 +383,6 @@
 				"modlHistograms": {
 					"histogramNumber": 5,
 					"interpretableHistogramNumber": 4,
-					"centralBinExponent": 4,
-					"lastCentralBinExponent": 3,
 					"truncationEpsilon": 0.1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,3,5,7,29],
@@ -432,8 +438,6 @@
 				"modlHistograms": {
 					"histogramNumber": 5,
 					"interpretableHistogramNumber": 4,
-					"centralBinExponent": -3,
-					"lastCentralBinExponent": -4,
 					"truncationEpsilon": 0.1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,2,3,30],
@@ -511,8 +515,6 @@
 				"modlHistograms": {
 					"histogramNumber": 2,
 					"interpretableHistogramNumber": 2,
-					"centralBinExponent": 2,
-					"lastCentralBinExponent": 2,
 					"truncationEpsilon": 0,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,2],
@@ -554,8 +556,6 @@
 				"modlHistograms": {
 					"histogramNumber": 4,
 					"interpretableHistogramNumber": 3,
-					"centralBinExponent": 1,
-					"lastCentralBinExponent": 3,
 					"truncationEpsilon": 0.1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,2,29],
@@ -604,8 +604,6 @@
 				"modlHistograms": {
 					"histogramNumber": 4,
 					"interpretableHistogramNumber": 3,
-					"centralBinExponent": 2,
-					"lastCentralBinExponent": 2,
 					"truncationEpsilon": 0.1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,5,28],
diff --git a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/err.txt
index 0e8a46c9e..4d8a1f992 100644
--- a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/err.txt
@@ -1,6 +1,6 @@
 Train unsupervised model
 Database ../../../datasets/Iris/Iris.txt: Read records: 150	Selected records: 105
 Evaluation of variable pairs
-Data preparation time: 0:00:00.31
+Data preparation time: 0:00:00.38
 Write report ./results/AnalysisResults.khj
 
diff --git a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/time.log b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/time.log
index d11750ce1..867cc1a5e 100644
--- a/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard-unstable/IrisU2D/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.4437694549560547
+Overal time: 0.9410936832427979
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.ModelingReport.xls
index b7ca9bc60..2b281e412 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Adult
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.PreparationReport.xls
index ab92616bc..be43a2dfa 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TestEvaluationReport.xls
index 910d2b23a..38153c6b2 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Adult
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 5d817bc8c..cb3b1954b 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Adult
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.khj
index 0047a1285..e24fc4cf7 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.model.kdic
index ef6b36b63..8078e2e89 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Adult
 <InitialDictionary="Adult"> <PredictorLabel="Univariate relationship"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.khj b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.khj
index f40a4373f..493e0db62 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.khj
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"evaluationReport": {
 		"reportType": "Evaluation",
 		"evaluationType": "",
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.xls
index 8b6cfc910..6706543c9 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/EvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Predictor evaluation report
 
 Dictionary	Adult
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/err.txt
index b687a2e59..a8bb37020 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/err.txt
@@ -1,7 +1,7 @@
 Train supervised model for classification of target variable class
 Database ../../../datasets/Adult/Adult.txt: Read records: 48,842	Selected records: 34,291
-Data preparation time: 0:00:00.30
-SNB train time: 0:00:00.68
+Data preparation time: 0:00:00.35
+SNB train time: 0:00:00.71
 Build Selective Naive Bayes SNB_Adult
 Build Univariate BU1_Adult
 Train evaluation of Selective Naive Bayes on database ../../../datasets/Adult/Adult.txt
@@ -13,7 +13,7 @@ Write report ./results/AnalysisResults.khj
 Deploy model SNB_Adult
 Input database ../../../datasets/Adult/Adult.txt: Read records: 48,842
 Output database ./results/D_Adult.txt: Written records: 34,291
-Model deployment time: 0:00:00.09
+Model deployment time: 0:00:00.10
 
 Predictor evaluation of Univariate relationship on database ../../../datasets/Adult/Adult.txt
 Predictor evaluation of Selective Naive Bayes on database ../../../datasets/Adult/Adult.txt
diff --git a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/time.log
index 93bbbe0a1..2db0babe1 100644
--- a/test/LearningTest/TestKhiops/Standard/Adult/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/Adult/results.ref/time.log
@@ -1 +1 @@
-Overal time: 1.987966775894165
+Overal time: 1.893387794494629
diff --git a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.PreparationReport.xls
index 69a0d0141..42a9270e0 100644
--- a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
@@ -32,28 +32,28 @@ Value grouping	MODL
 
 Categorical variables statistics
 
-Rank	Name	Values	Mode	Mode coverage	Missing number	Sparse missing number	Constr. cost
-R05	class	2	less	0.760718	0	0	3.46574
-R06	education	16	HS-grad	0.323164	0	0	3.46574
-R10	marital_status	7	Married-civ-spouse	0.458192	0	0	3.46574
-R11	native_country	41	United-States	0.914971	0	0	3.46574
-R12	occupation	14	Prof-specialty	0.183879	0	0	3.46574
-R13	race	5	White	0.855043	0	0	3.46574
-R14	relationship	6	Husband	0.403669	0	0	3.46574
-R15	sex	2	Male	0.668482	0	0	3.46574
-R16	workclass	8	Private	0.751505	0	0	3.46574
+Rank	Name	Groups	Values	Mode	Mode coverage	Missing number	Sparse missing number	Constr. cost
+R05	class	2	2	less	0.760718	0	0	3.46574
+R06	education	16	16	HS-grad	0.323164	0	0	3.46574
+R10	marital_status	7	7	Married-civ-spouse	0.458192	0	0	3.46574
+R11	native_country	40	41	United-States	0.914971	0	0	3.46574
+R12	occupation	14	14	Prof-specialty	0.183879	0	0	3.46574
+R13	race	5	5	White	0.855043	0	0	3.46574
+R14	relationship	6	6	Husband	0.403669	0	0	3.46574
+R15	sex	2	2	Male	0.668482	0	0	3.46574
+R16	workclass	8	8	Private	0.751505	0	0	3.46574
 
 
 Numerical variables statistics
 
-Rank	Name	Values	Min	Max	Mean	Std dev	Missing number	Sparse missing number	Constr. cost
-R01	Label	48842	1	48842	24421.5	14099.47092	0	0	3.46574
-R02	age	74	17	90	38.64358544	13.71036958	0	0	3.46574
-R03	capital_gain	123	0	99999	1079.067626	7451.94277	0	0	3.46574
-R04	capital_loss	99	0	4356	87.50231358	403.0004265	0	0	3.46574
-R07	education_num	16	1	16	10.07808853	2.570946436	0	0	3.46574
-R08	fnlwgt	28523	12285	1490400	189664.1346	105602.9443	0	0	3.46574
-R09	hours_per_week	96	1	99	40.42238238	12.39131717	0	0	3.46574
+Rank	Name	Intervals	Values	Min	Max	Mean	Std dev	Missing number	Sparse missing number	Constr. cost
+R01	Label	1	48842	1	48842	24421.5	14099.47092	0	0	3.46574
+R02	age	21	74	17	90	38.64358544	13.71036958	0	0	3.46574
+R03	capital_gain	38	123	0	99999	1079.067626	7451.94277	0	0	3.46574
+R04	capital_loss	51	99	0	4356	87.50231358	403.0004265	0	0	3.46574
+R07	education_num	16	16	1	16	10.07808853	2.570946436	0	0	3.46574
+R08	fnlwgt	1240	28523	12285	1490400	189664.1346	105602.9443	0	0	3.46574
+R09	hours_per_week	70	96	1	99	40.42238238	12.39131717	0	0	3.46574
 
 
 --------------------------------------------------------------------------------
diff --git a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.khj
index 26077465c..99978e0a8 100644
--- a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"preparationReport": {
 		"reportType": "Preparation",
@@ -38,6 +38,7 @@
 				"rank": "R01",
 				"name": "Label",
 				"type": "Numerical",
+				"parts": 1,
 				"values": 48842,
 				"min": 1,
 				"max": 48842,
@@ -51,6 +52,7 @@
 				"rank": "R02",
 				"name": "age",
 				"type": "Numerical",
+				"parts": 21,
 				"values": 74,
 				"min": 17,
 				"max": 90,
@@ -64,6 +66,7 @@
 				"rank": "R03",
 				"name": "capital_gain",
 				"type": "Numerical",
+				"parts": 38,
 				"values": 123,
 				"min": 0,
 				"max": 99999,
@@ -77,6 +80,7 @@
 				"rank": "R04",
 				"name": "capital_loss",
 				"type": "Numerical",
+				"parts": 51,
 				"values": 99,
 				"min": 0,
 				"max": 4356,
@@ -90,6 +94,7 @@
 				"rank": "R05",
 				"name": "class",
 				"type": "Categorical",
+				"parts": 2,
 				"values": 2,
 				"mode": "less",
 				"modeFrequency": 37155,
@@ -101,6 +106,7 @@
 				"rank": "R06",
 				"name": "education",
 				"type": "Categorical",
+				"parts": 16,
 				"values": 16,
 				"mode": "HS-grad",
 				"modeFrequency": 15784,
@@ -112,6 +118,7 @@
 				"rank": "R07",
 				"name": "education_num",
 				"type": "Numerical",
+				"parts": 16,
 				"values": 16,
 				"min": 1,
 				"max": 16,
@@ -125,6 +132,7 @@
 				"rank": "R08",
 				"name": "fnlwgt",
 				"type": "Numerical",
+				"parts": 1240,
 				"values": 28523,
 				"min": 12285,
 				"max": 1490400,
@@ -138,6 +146,7 @@
 				"rank": "R09",
 				"name": "hours_per_week",
 				"type": "Numerical",
+				"parts": 70,
 				"values": 96,
 				"min": 1,
 				"max": 99,
@@ -151,6 +160,7 @@
 				"rank": "R10",
 				"name": "marital_status",
 				"type": "Categorical",
+				"parts": 7,
 				"values": 7,
 				"mode": "Married-civ-spouse",
 				"modeFrequency": 22379,
@@ -162,6 +172,7 @@
 				"rank": "R11",
 				"name": "native_country",
 				"type": "Categorical",
+				"parts": 40,
 				"values": 41,
 				"mode": "United-States",
 				"modeFrequency": 44689,
@@ -173,6 +184,7 @@
 				"rank": "R12",
 				"name": "occupation",
 				"type": "Categorical",
+				"parts": 14,
 				"values": 14,
 				"mode": "Prof-specialty",
 				"modeFrequency": 8981,
@@ -184,6 +196,7 @@
 				"rank": "R13",
 				"name": "race",
 				"type": "Categorical",
+				"parts": 5,
 				"values": 5,
 				"mode": "White",
 				"modeFrequency": 41762,
@@ -195,6 +208,7 @@
 				"rank": "R14",
 				"name": "relationship",
 				"type": "Categorical",
+				"parts": 6,
 				"values": 6,
 				"mode": "Husband",
 				"modeFrequency": 19716,
@@ -206,6 +220,7 @@
 				"rank": "R15",
 				"name": "sex",
 				"type": "Categorical",
+				"parts": 2,
 				"values": 2,
 				"mode": "Male",
 				"modeFrequency": 32650,
@@ -217,6 +232,7 @@
 				"rank": "R16",
 				"name": "workclass",
 				"type": "Categorical",
+				"parts": 8,
 				"values": 8,
 				"mode": "Private",
 				"modeFrequency": 36705,
@@ -244,8 +260,6 @@
 				"modlHistograms": {
 					"histogramNumber": 1,
 					"interpretableHistogramNumber": 1,
-					"centralBinExponent": 16,
-					"lastCentralBinExponent": 16,
 					"truncationEpsilon": 0,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0],
@@ -301,8 +315,6 @@
 				"modlHistograms": {
 					"histogramNumber": 9,
 					"interpretableHistogramNumber": 8,
-					"centralBinExponent": 7,
-					"lastCentralBinExponent": 4,
 					"truncationEpsilon": 1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,2,3,4,5,6,7,24],
@@ -407,8 +419,6 @@
 				"modlHistograms": {
 					"histogramNumber": 9,
 					"interpretableHistogramNumber": 8,
-					"centralBinExponent": 6,
-					"lastCentralBinExponent": 6,
 					"truncationEpsilon": 0,
 					"removedSingularIntervalNumber": 88,
 					"granularities": [0,1,2,3,4,5,6,7,30],
@@ -526,8 +536,6 @@
 				"modlHistograms": {
 					"histogramNumber": 12,
 					"interpretableHistogramNumber": 11,
-					"centralBinExponent": 13,
-					"lastCentralBinExponent": 7,
 					"truncationEpsilon": 1,
 					"removedSingularIntervalNumber": 25,
 					"granularities": [0,1,2,3,4,5,6,7,8,9,10,30],
@@ -680,8 +688,6 @@
 				"modlHistograms": {
 					"histogramNumber": 6,
 					"interpretableHistogramNumber": 5,
-					"centralBinExponent": 4,
-					"lastCentralBinExponent": 4,
 					"truncationEpsilon": 1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,2,3,4,24],
@@ -1976,8 +1982,6 @@
 				"modlHistograms": {
 					"histogramNumber": 20,
 					"interpretableHistogramNumber": 19,
-					"centralBinExponent": 16,
-					"lastCentralBinExponent": 13,
 					"truncationEpsilon": 1,
 					"removedSingularIntervalNumber": 3,
 					"granularities": [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,25],
@@ -2158,8 +2162,6 @@
 				"modlHistograms": {
 					"histogramNumber": 9,
 					"interpretableHistogramNumber": 8,
-					"centralBinExponent": 7,
-					"lastCentralBinExponent": 7,
 					"truncationEpsilon": 1,
 					"removedSingularIntervalNumber": 0,
 					"granularities": [0,1,2,3,4,5,6,7,25],
diff --git a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/err.txt
index 358e8dfe8..a731fb66a 100644
--- a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/err.txt
@@ -1,5 +1,5 @@
 Train unsupervised model
 Database ../../../datasets/Adult/Adult.txt: Read records: 48,842
-Data preparation time: 0:00:02.49
+Data preparation time: 0:00:02.34
 Write report ./results/AnalysisResults.khj
 
diff --git a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/time.log
index 2e8118737..f849c0d2c 100644
--- a/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/AdultU/results.ref/time.log
@@ -1 +1 @@
-Overal time: 2.631314754486084
+Overal time: 2.486985921859741
diff --git a/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/benchmark.xls b/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/benchmark.xls
index d364f4127..2c2aa3ab1 100644
--- a/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/benchmark.xls
+++ b/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/benchmark.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Predictor evaluation report
 
 
@@ -117,16 +117,16 @@ SignificantTests	 0/1/0	 1/0/0	 0/0/1	 0/0/1
 Rank	3	4	2	1
 
 Total Time	SNB	NB	DG	BU
-Mean	0.0285	0.0188	0.0487	0.0191
-GeometricMean	0.0269697	0.0187957	0.0486658	0.0190549
-SignificantTests	 0/1/0	 0/0/1	 1/0/0	 0/0/1
+Mean	0.0285	0.0194	0.0528	0.0208
+GeometricMean	0.0265982	0.0193939	0.0527533	0.020696
+SignificantTests	 0/1/0	 0/1/0	 1/0/0	 0/1/0
 Rank	3	1	4	2
 
 Pre Time	SNB	NB	DG	BU
-Mean	0.0239	0.0188	0.0184	0.0191
-GeometricMean	0.0222341	0.0187957	0.0183884	0.0190549
+Mean	0.024	0.0194	0.0203	0.0208
+GeometricMean	0.0219321	0.0193939	0.0202667	0.020696
 SignificantTests	 0/1/0	 0/1/0	 0/1/0	 0/1/0
-Rank	4	2	1	3
+Rank	4	1	2	3
 
 
 Experiment details
@@ -214,12 +214,12 @@ Iris	2	0	0	4	0	1	1.3	0.458258	-1	1	0	-1
 Total Time
 Dataset	SNB			NB			DG			BU		
 	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests
-Iris	0.0285	0.0119436	0	0.0188	0.0004	-1	0.0487	0.00184662	1	0.0191	0.00137477	-1
+Iris	0.0285	0.0138365	0	0.0194	0.000489898	0	0.0528	0.00222711	1	0.0208	0.00218174	0
 
 Pre Time
 Dataset	SNB			NB			DG			BU		
 	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests
-Iris	0.0239	0.0117852	0	0.0188	0.0004	0	0.0184	0.000663325	0	0.0191	0.00137477	0
+Iris	0.024	0.0136748	0	0.0194	0.000489898	0	0.0203	0.00118743	0	0.0208	0.00218174	0
 
 
 Run details
@@ -434,26 +434,26 @@ Iris	10	2	4	1	1
 
 Total Time
 Dataset	Run	SNB	NB	DG	BU
-Iris	1	0.064	0.019	0.047	0.018
-Iris	2	0.024	0.019	0.047	0.019
-Iris	3	0.025	0.019	0.052	0.023
-Iris	4	0.029	0.019	0.048	0.018
-Iris	5	0.023	0.019	0.048	0.019
-Iris	6	0.025	0.019	0.047	0.019
-Iris	7	0.024	0.018	0.052	0.019
-Iris	8	0.024	0.019	0.048	0.019
-Iris	9	0.024	0.019	0.05	0.019
-Iris	10	0.023	0.018	0.048	0.018
+Iris	1	0.07	0.019	0.057	0.02
+Iris	2	0.024	0.019	0.051	0.019
+Iris	3	0.024	0.02	0.055	0.02
+Iris	4	0.024	0.019	0.053	0.02
+Iris	5	0.024	0.019	0.052	0.02
+Iris	6	0.024	0.019	0.049	0.02
+Iris	7	0.024	0.02	0.055	0.02
+Iris	8	0.023	0.019	0.052	0.019
+Iris	9	0.024	0.02	0.053	0.026
+Iris	10	0.024	0.02	0.051	0.024
 
 Pre Time
 Dataset	Run	SNB	NB	DG	BU
-Iris	1	0.059	0.019	0.018	0.018
-Iris	2	0.02	0.019	0.018	0.019
-Iris	3	0.02	0.019	0.02	0.023
-Iris	4	0.024	0.019	0.018	0.018
-Iris	5	0.019	0.019	0.018	0.019
-Iris	6	0.02	0.019	0.019	0.019
-Iris	7	0.019	0.018	0.019	0.019
-Iris	8	0.02	0.019	0.018	0.019
-Iris	9	0.019	0.019	0.018	0.019
-Iris	10	0.019	0.018	0.018	0.018
+Iris	1	0.065	0.019	0.023	0.02
+Iris	2	0.02	0.019	0.02	0.019
+Iris	3	0.02	0.02	0.02	0.02
+Iris	4	0.019	0.019	0.022	0.02
+Iris	5	0.02	0.019	0.02	0.02
+Iris	6	0.019	0.019	0.019	0.02
+Iris	7	0.02	0.02	0.02	0.02
+Iris	8	0.019	0.019	0.02	0.019
+Iris	9	0.019	0.02	0.019	0.026
+Iris	10	0.019	0.02	0.02	0.024
diff --git a/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/time.log
index 439531260..238376d27 100644
--- a/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/BenchIris/results.ref/time.log
@@ -1 +1 @@
-Overal time: 1.8771882057189941
+Overal time: 1.9803194999694824
diff --git a/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/benchmark.xls b/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/benchmark.xls
index 4165b3c2b..9437c7d7f 100644
--- a/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/benchmark.xls
+++ b/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/benchmark.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Predictor evaluation report
 
 
@@ -119,14 +119,14 @@ SignificantTests	 0/4/0	 0/4/0
 Rank	1	1
 
 Total Time	MODL	MODL_2
-Mean	0.00480153	0.00449023
-GeometricMean	0.00479343	0.00449016
+Mean	0.0060459	0.00476354
+GeometricMean	0.00593088	0.00476347
 SignificantTests	 0/4/0	 0/4/0
 Rank	2	1
 
 Pre Time	MODL	MODL_2
-Mean	0.00480153	0.00449023
-GeometricMean	0.00479343	0.00449016
+Mean	0.0060459	0.00476354
+GeometricMean	0.00593088	0.00476347
 SignificantTests	 0/4/0	 0/4/0
 Rank	2	1
 
@@ -242,14 +242,14 @@ SignificantTests	 0/4/0	 0/4/0
 Rank	1	1
 
 Total Time	MODL	MODL_2
-Mean	0.00480153	0.00449023
-GeometricMean	0.00479343	0.00449016
+Mean	0.0060459	0.00476354
+GeometricMean	0.00593088	0.00476347
 SignificantTests	 0/4/0	 0/4/0
 Rank	2	1
 
 Pre Time	MODL	MODL_2
-Mean	0.00480153	0.00449023
-GeometricMean	0.00479343	0.00449016
+Mean	0.0060459	0.00476354
+GeometricMean	0.00593088	0.00476347
 SignificantTests	 0/4/0	 0/4/0
 Rank	2	1
 
@@ -399,18 +399,18 @@ Iris	PetalWidth	1	0	0	1	0	0
 Total Time
 Dataset	Attribute	MODL			MODL_2		
 		Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests
-Iris	SepalLength	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	SepalWidth	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	PetalLength	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	PetalWidth	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
+Iris	SepalLength	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	SepalWidth	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	PetalLength	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	PetalWidth	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
 
 Pre Time
 Dataset	Attribute	MODL			MODL_2		
 		Mean	StandardDeviation	SignificantTests	Mean	StandardDeviation	SignificantTests
-Iris	SepalLength	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	SepalWidth	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	PetalLength	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
-Iris	PetalWidth	0.00480153	0.00027875	0	0.00449023	2.42e-05	0
+Iris	SepalLength	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	SepalWidth	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	PetalLength	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
+Iris	PetalWidth	0.0060459	0.00117368	0	0.00476354	2.45375e-05	0
 
 Clusters
 Dataset	Attribute	MODL			MODL_2		
@@ -609,25 +609,25 @@ Iris	PetalWidth	2	1	1
 
 Total Time
 Dataset	Attribute	Run	MODL	MODL_2
-Iris	SepalLength	1	0.00508028	0.00446603
-Iris	SepalLength	2	0.00452278	0.00451442
-Iris	SepalWidth	1	0.00508028	0.00446603
-Iris	SepalWidth	2	0.00452278	0.00451442
-Iris	PetalLength	1	0.00508028	0.00446603
-Iris	PetalLength	2	0.00452278	0.00451442
-Iris	PetalWidth	1	0.00508028	0.00446603
-Iris	PetalWidth	2	0.00452278	0.00451442
+Iris	SepalLength	1	0.00721958	0.00478808
+Iris	SepalLength	2	0.00487222	0.004739
+Iris	SepalWidth	1	0.00721958	0.00478808
+Iris	SepalWidth	2	0.00487222	0.004739
+Iris	PetalLength	1	0.00721958	0.00478808
+Iris	PetalLength	2	0.00487222	0.004739
+Iris	PetalWidth	1	0.00721958	0.00478808
+Iris	PetalWidth	2	0.00487222	0.004739
 
 Pre Time
 Dataset	Attribute	Run	MODL	MODL_2
-Iris	SepalLength	1	0.00508028	0.00446603
-Iris	SepalLength	2	0.00452278	0.00451442
-Iris	SepalWidth	1	0.00508028	0.00446603
-Iris	SepalWidth	2	0.00452278	0.00451442
-Iris	PetalLength	1	0.00508028	0.00446603
-Iris	PetalLength	2	0.00452278	0.00451442
-Iris	PetalWidth	1	0.00508028	0.00446603
-Iris	PetalWidth	2	0.00452278	0.00451442
+Iris	SepalLength	1	0.00721958	0.00478808
+Iris	SepalLength	2	0.00487222	0.004739
+Iris	SepalWidth	1	0.00721958	0.00478808
+Iris	SepalWidth	2	0.00487222	0.004739
+Iris	PetalLength	1	0.00721958	0.00478808
+Iris	PetalLength	2	0.00487222	0.004739
+Iris	PetalWidth	1	0.00721958	0.00478808
+Iris	PetalWidth	2	0.00487222	0.004739
 
 Clusters
 Dataset	Attribute	Run	MODL	MODL_2
diff --git a/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/time.log
index 0146be70f..2027bc6b7 100644
--- a/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/BenchUnivariateIris/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.49838709831237793
+Overal time: 0.5580630302429199
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.ModelingReport.xls
index 6011b56a4..388e2b758 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.PreparationReport.xls
index 3eb85b621..6ebebea97 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TestEvaluationReport.xls
index 3d3474e0a..bf8c93eec 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 7def1d54c..455a9cd79 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.khj
index 38701dbe0..9b9ee0cba 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.model.kdic
index bde64d900..3b3570365 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Univariate PetalWidth"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/time.log
index fa3f9e231..98299e70a 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/Iris/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.23929762840270996
+Overal time: 0.24688458442687988
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.ModelingReport.xls
index 317eaf70c..843541e04 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.Preparation2DReport.xls b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.Preparation2DReport.xls
index 8fb594bcf..04ea0b65f 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.Preparation2DReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.Preparation2DReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.PreparationReport.xls
index 03f296d2f..521bb1791 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TestEvaluationReport.xls
index e6c639005..5c874db10 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 1ee2ef7a3..da8185091 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.khj
index f2cad387f..60833659a 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.model.kdic
index dd03a3e8c..a873cf96d 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Univariate PetalWidth"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/err.txt
index f4f455f14..e437a50bf 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/err.txt
@@ -1,7 +1,7 @@
 Train supervised model for classification of target variable Class
 Database ../../../datasets/Iris/Iris.txt: Read records: 150	Selected records: 105
 Evaluation of variable pairs
-Data preparation time: 0:00:00.52
+Data preparation time: 0:00:00.55
 SNB train time: 0:00:00
 Build Selective Naive Bayes SNB_Iris
 Build Univariate BU1_Iris
diff --git a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/time.log
index 76c13ef54..4584106bf 100644
--- a/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/Iris2D/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.7472364902496338
+Overal time: 0.797447681427002
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.ModelingReport.xls
index f8686be76..59bc1afff 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.PreparationReport.xls
index b47a8438f..15e474463 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TestEvaluationReport.xls
index e6c639005..5c874db10 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 1ee2ef7a3..da8185091 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.khj
index ebd93aa52..6d56dc63a 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.model.kdic
index 1392bf778..7435ed030 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Univariate PetalWidth"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/time.log
index ccf3e4dc2..87b861bf9 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisC/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.26490068435668945
+Overal time: 0.2847154140472412
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.ModelingReport.xls
index 50fa09577..5f80cd90d 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.PreparationReport.xls
index 3eb85b621..6ebebea97 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TestEvaluationReport.xls
index 5951af85f..ff93431c4 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 6b67f9cf6..357af9856 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.khj
index d15fdc6b7..0b57a9bb1 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.model.kdic
index bc9e7a4cd..9e883aad9 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	SNB_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/time.log
index 82a5087fb..da7b293e8 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisFastPath/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.21149301528930664
+Overal time: 0.20951175689697266
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.ModelingReport.xls
index 541061ea7..a3cd8a669 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.PreparationReport.xls
index 522b1ccde..023d5e7eb 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TestEvaluationReport.xls
index 0410c2652..d04e01943 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 5fdb154be..61bc0d6e2 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.khj
index 7194c3f24..6df2ce07f 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.model.kdic
index 2d75ee2fb..3a719ca20 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Univariate PetalWidth"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/err.txt
index adb1063bd..23c3cc0ad 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/err.txt
@@ -1,6 +1,6 @@
 Train supervised model for classification of target variable Class
 Database ../../../datasets/Iris/Iris.txt: Read records: 150	Selected records: 105
-Data preparation time: 0:00:00.08
+Data preparation time: 0:00:00.09
 SNB train time: 0:00:00
 Build Selective Naive Bayes SNB_Iris
 Build Univariate BU1_Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/time.log
index 964211e56..6f1225ff0 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisG/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.31251096725463867
+Overal time: 0.33158230781555176
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.ModelingReport.xls
index e4446585e..c8b8b2ecb 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.PreparationReport.xls
index 8857f9cb7..28b24ee5f 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TestEvaluationReport.xls
index a04a66836..79731b9b1 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 231b46551..3b7899fd9 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.khj
index e397796cf..9f7dd56e7 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "Training without setosa",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.model.kdic
index d700461da..d17f946fe 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	SNB_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/time.log
index 570ef9d88..c9d5cf119 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.2018754482269287
+Overal time: 0.21962904930114746
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.ModelingReport.xls
index 75808843b..7cef48b4e 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.Preparation2DReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.Preparation2DReport.xls
index 49614b144..4939c0f04 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.Preparation2DReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.Preparation2DReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.PreparationReport.xls
index 266ba9703..d6c1d30e6 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TestEvaluationReport.xls
index 44df75962..0f4cf3981 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 25ab1a5c5..12209de10 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.khj
index d0a9b0fa6..94c66bcff 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.model.kdic
index 6734dd778..f8d2c8ee4 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	SNB_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/err.txt
index c37283be3..6910a374a 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/err.txt
@@ -1,7 +1,7 @@
 Train supervised model for classification of target variable Class
 Database ../../../datasets/Iris/Iris.txt: Read records: 150	Selected records: 105
 Evaluation of variable pairs
-Data preparation time: 0:00:00.09
+Data preparation time: 0:00:00.10
 SNB train time: 0:00:00
 Build Selective Naive Bayes SNB_Iris
 Train evaluation of Selective Naive Bayes on database ../../../datasets/Iris/Iris.txt
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/time.log
index 5cae79a1e..4d206baf1 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisLight2D/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.2889559268951416
+Overal time: 0.2938506603240967
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.ModelingReport.xls
index 632710dac..95b408e2b 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.PreparationReport.xls
index e1bda14d3..fa44a19d6 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TestEvaluationReport.xls
index cdfcf6dd5..a1fb1ce52 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TrainEvaluationReport.xls
index fe252bb02..e78a32ff5 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TreePreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TreePreparationReport.xls
index a4272895d..e4f1805a2 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TreePreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.TreePreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.khj
index 60895e1f2..812863ec5 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.model.kdic
index bf9204138..d5be75001 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	SNB_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/time.log
index 5e83f422b..d88d94101 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisLightWithTrees/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.23284912109375
+Overal time: 0.2581307888031006
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.ModelingReport.xls
index 8053ba9b0..e379bd134 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.PreparationReport.xls
index 429358d2e..018aff24b 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TestEvaluationReport.xls
index e619c8c04..6e1262a70 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TrainEvaluationReport.xls
index 12ba1bf96..42662b595 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.khj
index 75bbb28d0..1ec92fd8e 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.model.kdic
index 75edaca48..16db960d8 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Dictionary	BU1_Iris
 <InitialDictionary="Iris"> <PredictorLabel="Univariate SPetalLength"> <PredictorType="Regressor">
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/err.txt
index d38708661..9a6437f7e 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/err.txt
@@ -1,6 +1,6 @@
 Train supervised model for regression of target variable PetalLength
 Database ../../../datasets/Iris/Iris.txt: Read records: 150	Selected records: 105
-Data preparation time: 0:00:00.19
+Data preparation time: 0:00:00.21
 SNB train time: 0:00:00
 Build Selective Naive Bayes SNB_Iris
 Build Baseline B_Iris
diff --git a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/time.log
index daec461b5..55a504291 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisR/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.41715097427368164
+Overal time: 0.45478200912475586
diff --git a/test/LearningTest/TestKhiops/Standard/IrisTransfer/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/IrisTransfer/results.ref/time.log
index f5eff3874..093f7e02d 100644
--- a/test/LearningTest/TestKhiops/Standard/IrisTransfer/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/IrisTransfer/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.14530396461486816
+Overal time: 0.14561104774475098
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.ModelingReport.xls
index a9c96e3a6..16d2e8bdd 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	SpliceJunction
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.PreparationReport.xls
index e6e020db7..08724b9c8 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TestEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TestEvaluationReport.xls
index 611abe35e..81bef2755 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TestEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TestEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Test evaluation report
 
 Dictionary	SpliceJunction
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
index 02d84fe91..5d8c58fd8 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	SpliceJunction
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.khj
index 12451ce47..4a154716d 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.model.kdic
index c99453876..f003d1949 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/C100_AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Root	Dictionary	SNB_SpliceJunction	(SampleId)
 <InitialDictionary="SpliceJunction"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/err.txt
index 2f0ce4d27..fa25bf0c8 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/err.txt
@@ -1,9 +1,9 @@
-Variable construction time: 0:00:00.08 (100 constructed variables)
+Variable construction time: 0:00:00.09 (100 constructed variables)
 Train supervised model for classification of target variable Class
 Database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt: Read records: 3178	Selected records: 303
   Table ../../../MTdatasets/SpliceJunction/SpliceJunctionDNA.txt Records: 18,180
-Data preparation time: 0:00:00.13
-SNB train time: 0:00:00
+Data preparation time: 0:00:00.14
+SNB train time: 0:00:00.01
 Build Selective Naive Bayes SNB_SpliceJunction
 Train evaluation of Selective Naive Bayes on database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt
 Test evaluation of Selective Naive Bayes on database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/time.log
index 177ffc274..91e76dcbe 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.5552172660827637
+Overal time: 0.6348357200622559
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.Preparation2DReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.Preparation2DReport.xls
index 328a61cc5..ae9c331e0 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.Preparation2DReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.Preparation2DReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.7i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.PreparationReport.xls
index be242e8e0..d095798c5 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.7i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.khj
index c6d1387d3..c615bb3a8 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/C100_AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.7i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"preparationReport": {
 		"reportType": "Preparation",
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/err.txt
index c20f97aa1..c6e3cc44d 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/err.txt
@@ -3,6 +3,6 @@ Train supervised model for classification of target variable Class
 Database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt: Read records: 3178	Selected records: 303
   Table ../../../MTdatasets/SpliceJunction/SpliceJunctionDNA.txt Records: 18,180
 Evaluation of variable pairs
-Data preparation time: 0:00:02.48
+Data preparation time: 0:00:02.51
 Write report ./results/C100_AnalysisResults.khj
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/time.log
index 75be0ad84..c4f90ea4c 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunction2D/results.ref/time.log
@@ -1 +1 @@
-Overal time: 2.715700626373291
+Overal time: 2.760221242904663
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.PreparationReport.xls
index 4bca2e8be..c24078e22 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.khj
index e9acbf38f..e17953335 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/C100_AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"preparationReport": {
 		"reportType": "Preparation",
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/err.txt
index 1cdd9b468..af1465bdd 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/err.txt
@@ -1,4 +1,4 @@
-Variable construction time: 0:00:00.17 (100 constructed variables)
+Variable construction time: 0:00:00.20 (100 constructed variables)
 Train supervised model for classification of target variable Class
 Database ./SpliceJunctionExternal.txt: Read records: 3178	Selected records: 303
 Data preparation time: 0:00:00.15
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/time.log
index 32d78802a..226cad2a5 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionExternal/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.4532008171081543
+Overal time: 0.49777817726135254
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.PreparationReport.xls
index 09ab1890d..00bdad493 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.khj
index bd09be57a..db28cee99 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/C100_AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"preparationReport": {
 		"reportType": "Preparation",
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/err.txt
index 16bfebe7a..ded448b72 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/err.txt
@@ -1,7 +1,7 @@
-Variable construction time: 0:00:00.08 (100 constructed variables)
+Variable construction time: 0:00:00.09 (100 constructed variables)
 Train supervised model for classification of target variable Class
 Database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt: Read records: 3178	Selected records: 303
   Table ../../../MTdatasets/SpliceJunction/SpliceJunctionDNA.txt Records: 18,180
-Data preparation time: 0:00:00.11
+Data preparation time: 0:00:00.12
 Write report ./results/C100_AnalysisResults.khj
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/time.log
index fdc02d7c6..7efa6fbd7 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionPreparation/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.3499460220336914
+Overal time: 0.3739635944366455
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/err.txt
index 303d613d1..3dd688c0b 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/err.txt
@@ -3,5 +3,5 @@ Input database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt: Read recor
   Table ../../../MTdatasets/SpliceJunction/SpliceJunctionDNA.txt Records: 135,240
 Output database ./results/D_SpliceJunction.txt: Written records: 2254
   Table ./results/D_SpliceJunctionDNA.txt Records: 135,240
-Model deployment time: 0:00:00.16
+Model deployment time: 0:00:00.17
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/time.log
index eccf20468..a849126c0 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionTransfer/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.29662609100341797
+Overal time: 0.2981998920440674
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.ModelingReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.ModelingReport.xls
index 312f75ab7..5a4450148 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.ModelingReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.ModelingReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Modeling report
 
 Dictionary	SpliceJunction
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.PreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.PreparationReport.xls
index 085e22ce8..525b16182 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.PreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.PreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
index ed18af0ab..170b9401e 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TrainEvaluationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Train evaluation report
 
 Dictionary	SpliceJunction
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TreePreparationReport.xls b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TreePreparationReport.xls
index f4deeb9d3..0dedae257 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TreePreparationReport.xls
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.TreePreparationReport.xls
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 Descriptive statistics
 
 
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.khj b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.khj
index 840908e91..63fb8d9d1 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.khj
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.khj
@@ -1,6 +1,6 @@
 {
 	"tool": "Khiops",
-	"version": "10.4.6i",
+	"version": "10.4.8i",
 	"shortDescription": "",
 	"modelingReport": {
 		"reportType": "Modeling",
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.model.kdic b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.model.kdic
index 3e3113ae7..de0bfe661 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.model.kdic
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/C100_AnalysisResults.model.kdic
@@ -1,4 +1,4 @@
-#Khiops 10.4.6i
+#Khiops 10.4.8i
 
 Root	Dictionary	SNB_SpliceJunction	(SampleId)
 <InitialDictionary="SpliceJunction"> <PredictorLabel="Selective Naive Bayes"> <PredictorType="Classifier">
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/err.txt b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/err.txt
index cbbdffda8..26d5fbdf0 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/err.txt
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/err.txt
@@ -1,9 +1,9 @@
-Variable construction time: 0:00:00.08 (100 constructed variables)
+Variable construction time: 0:00:00.09 (100 constructed variables)
 Train supervised model for classification of target variable Class
 Database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt: Read records: 3178	Selected records: 303
   Table ../../../MTdatasets/SpliceJunction/SpliceJunctionDNA.txt Records: 18,180
 Computation of 2 distinct decision trees (out of 5 planned)
-Data preparation time: 0:00:00.14
+Data preparation time: 0:00:00.15
 SNB train time: 0:00:00.01
 Build Selective Naive Bayes SNB_SpliceJunction
 Train evaluation of Selective Naive Bayes on database ../../../MTdatasets/SpliceJunction/SpliceJunction.txt
diff --git a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/time.log b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/time.log
index 2d6da76a9..5f2492cea 100644
--- a/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/time.log
+++ b/test/LearningTest/TestKhiops/Standard/SpliceJunctionWithTrees/results.ref/time.log
@@ -1 +1 @@
-Overal time: 0.4563112258911133
+Overal time: 0.5006570816040039
diff --git a/test/LearningTest/cmd/python/check_results.py b/test/LearningTest/cmd/python/check_results.py
index 10646dfe5..1f176b47e 100644
--- a/test/LearningTest/cmd/python/check_results.py
+++ b/test/LearningTest/cmd/python/check_results.py
@@ -353,13 +353,13 @@ def filter_khiops_temp_dir(value):
 
             # cas special du fichier d'erreur en coclustering:
             # on saute les lignes d'ecritire de rapport intermediaire qui different par le temps
-            # ("Write intermediate coclustering report")
+            # ("Write intermediate ...")
             if (
                 is_error_file
                 and length_r > 0
-                and row_r[i].find("Write intermediate coclustering report") != -1
+                and row_r[i].find("Write intermediate ") != -1
                 and length_t > 0
-                and row_t[i].find("Write intermediate coclustering report") != -1
+                and row_t[i].find("Write intermediate ") != -1
             ):
                 continue
 
diff --git a/test/LearningTest/cmd/python/help_options.py b/test/LearningTest/cmd/python/help_options.py
index 3940a4310..befcfadfe 100644
--- a/test/LearningTest/cmd/python/help_options.py
+++ b/test/LearningTest/cmd/python/help_options.py
@@ -3,7 +3,7 @@
 print(
     "KhiopsBatchMode: "
     + str(os.getenv("KhiopsBatchMode"))
-    + "\n\t true, false (default: false)"
+    + "\n\t true, false (default: true)"
 )
 
 print(
diff --git a/test/LearningTest/cmd/python/test_khiops.py b/test/LearningTest/cmd/python/test_khiops.py
index 3b86f31f6..d95f2f331 100644
--- a/test/LearningTest/cmd/python/test_khiops.py
+++ b/test/LearningTest/cmd/python/test_khiops.py
@@ -252,12 +252,6 @@ def test(modl_path, samples_path, sample_test):
         # un plantagephysique de l'allocateur en cas de depassement des contraintes memoires des scenarios
         os.putenv("KhiopsHardMemoryLimitMode", "true")
 
-        # khiops en mode multitable via une variable d'environnement
-        os.putenv("KhiopsMultiTableMode", "true")
-
-        # khiops en mode Text via une  variable d'environnement
-        # os.putenv('KhiopsTextVariableMode', 'true')
-
         # khiops en mode crash test via une variable d'environnement
         os.putenv("KhiopsCrashTestMode", "true")
 
@@ -270,7 +264,7 @@ def test(modl_path, samples_path, sample_test):
             khiops_params.append("-n")
             khiops_params.append(khiops_mpi_process_number)
         khiops_params.append(modl_path)
-        if os.getenv("KhiopsBatchMode") == "true":
+        if os.getenv("KhiopsBatchMode") != "false":
             khiops_params.append("-b")
         khiops_params.append("-i")
         khiops_params.append(os.path.join(os.getcwd(), "test.prm"))