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29 changes: 29 additions & 0 deletions
29
samoa-api/src/main/java/org/apache/samoa/learners/InputInstance.java
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| package org.apache.samoa.learners; | ||
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| /* | ||
| * #%L | ||
| * SAMOA | ||
| * %% | ||
| * Copyright (C) 2014 - 2016 Apache Software Foundation | ||
| * %% | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * #L% | ||
| */ | ||
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| import org.apache.samoa.instances.Instance; | ||
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| import java.io.Serializable; | ||
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| public interface InputInstance extends Serializable { | ||
| Instance getInstance(); | ||
| } |
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83 changes: 83 additions & 0 deletions
83
samoa-api/src/main/java/org/apache/samoa/learners/classifiers/NominalInputInstance.java
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| @@ -0,0 +1,83 @@ | ||
| package org.apache.samoa.learners.classifiers; | ||
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| /* | ||
| * #%L | ||
| * SAMOA | ||
| * %% | ||
| * Copyright (C) 2014 - 2016 Apache Software Foundation | ||
| * %% | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * #L% | ||
| */ | ||
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| import org.apache.samoa.instances.*; | ||
| import org.apache.samoa.learners.InputInstance; | ||
| import org.apache.samoa.moa.core.FastVector; | ||
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| public class NominalInputInstance implements InputInstance { | ||
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| private int numNominals; | ||
| private int numClasses; | ||
| private double trueClass; // index started from 0 | ||
| private int[] numValsPerNominal; | ||
| private double[] data; // index started from 0 | ||
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| public NominalInputInstance(int numNominals, int numClasses, double trueClass, | ||
| int[] numValsPerNominal, double[] data) { | ||
| this.numNominals = numNominals; | ||
| this.numClasses = numClasses; | ||
| this.trueClass = trueClass; | ||
| this.numValsPerNominal = numValsPerNominal; | ||
| this.data = data; | ||
| } | ||
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| private InstancesHeader generateHeader() { | ||
| FastVector<Attribute> attributes = new FastVector<>(); | ||
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| for (int i = 0; i < this.numNominals; i++) { | ||
| FastVector<String> nominalAttVals = new FastVector<>(); | ||
| for (int j = 0; j < this.numValsPerNominal[i]; j++) { | ||
| nominalAttVals.addElement("value" + (j + 1)); | ||
| } | ||
| attributes.addElement(new Attribute("nominal" + (i + 1), | ||
| nominalAttVals)); | ||
| } | ||
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| FastVector<String> classLabels = new FastVector<>(); | ||
| for (int i = 0; i < this.numClasses; i++) { | ||
| classLabels.addElement("class" + (i + 1)); | ||
| } | ||
| attributes.addElement(new Attribute("class", classLabels)); | ||
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| InstancesHeader instancesHeader = new InstancesHeader( | ||
| new Instances(null, attributes, 0)); | ||
| instancesHeader.setClassIndex(instancesHeader.numAttributes() - 1); | ||
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| return instancesHeader; | ||
| } | ||
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| @Override | ||
| public Instance getInstance() { | ||
| InstancesHeader header = this.generateHeader(); | ||
| Instance inst = new DenseInstance(header.numAttributes()); | ||
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| for (int i = 0; i < this.numNominals; i++) { | ||
| inst.setValue(i, this.data[i]); | ||
| } | ||
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| inst.setDataset(header); | ||
| inst.setClassValue(this.trueClass); | ||
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| return inst; | ||
| } | ||
| } |
74 changes: 74 additions & 0 deletions
74
samoa-api/src/main/java/org/apache/samoa/learners/classifiers/NumericInputInstance.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,74 @@ | ||
| package org.apache.samoa.learners.classifiers; | ||
|
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| /* | ||
| * #%L | ||
| * SAMOA | ||
| * %% | ||
| * Copyright (C) 2014 - 2016 Apache Software Foundation | ||
| * %% | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * #L% | ||
| */ | ||
|
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| import org.apache.samoa.instances.*; | ||
| import org.apache.samoa.learners.InputInstance; | ||
| import org.apache.samoa.moa.core.FastVector; | ||
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| public class NumericInputInstance implements InputInstance { | ||
| private int numNumerics; | ||
| private int numClasses; | ||
| private double trueClass; // index started from 0 | ||
| private double[] data; | ||
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| public NumericInputInstance(int numNumerics, int numClasses, double trueClass, double[] data) { | ||
| this.numNumerics = numNumerics; | ||
| this.numClasses = numClasses; | ||
| this.trueClass = trueClass; | ||
| this.data = data; | ||
| } | ||
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| private InstancesHeader generateHeader() { | ||
| FastVector<Attribute> attributes = new FastVector<>(); | ||
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| for (int i = 0; i < this.numNumerics; i++) { | ||
| attributes.addElement(new Attribute("numeric" + (i + 1))); | ||
| } | ||
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| FastVector<String> classLabels = new FastVector<>(); | ||
| for (int i = 0; i < this.numClasses; i++) { | ||
| classLabels.addElement("class" + (i + 1)); | ||
| } | ||
| attributes.addElement(new Attribute("class", classLabels)); | ||
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| InstancesHeader instancesHeader = new InstancesHeader( | ||
| new Instances(null, attributes, 0)); | ||
| instancesHeader.setClassIndex(instancesHeader.numAttributes() - 1); | ||
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| return instancesHeader; | ||
| } | ||
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| @Override | ||
| public Instance getInstance() { | ||
| InstancesHeader header = this.generateHeader(); | ||
| Instance inst = new DenseInstance(header.numAttributes()); | ||
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| for (int i = 0; i < this.numNumerics; i++) { | ||
| inst.setValue(i, this.data[i]); | ||
| } | ||
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| inst.setDataset(header); | ||
| inst.setClassValue(this.trueClass); | ||
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| return inst; | ||
| } | ||
| } |
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62 changes: 62 additions & 0 deletions
62
samoa-api/src/main/java/org/apache/samoa/learners/clusterers/ClusterInputInstance.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package org.apache.samoa.learners.clusterers; | ||
|
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| /* | ||
| * #%L | ||
| * SAMOA | ||
| * %% | ||
| * Copyright (C) 2014 - 2016 Apache Software Foundation | ||
| * %% | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * #L% | ||
| */ | ||
|
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| import org.apache.samoa.instances.*; | ||
| import org.apache.samoa.learners.InputInstance; | ||
| import org.apache.samoa.moa.core.DataPoint; | ||
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| import java.util.ArrayList; | ||
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| public class ClusterInputInstance implements InputInstance { | ||
| private int numAtts; | ||
| private int timeStamp; | ||
| private double[] data; | ||
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| public ClusterInputInstance(int numAtts, int timeStamp, double[] data) { | ||
| this.numAtts = numAtts; | ||
| this.timeStamp = timeStamp; | ||
| this.data = data; | ||
| } | ||
|
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| private InstancesHeader generateHeader() { | ||
| ArrayList<Attribute> attributes = new ArrayList<>(); | ||
|
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| for (int i = 0; i < this.numAtts; i++) { | ||
| attributes.add(new Attribute("att" + (i + 1))); | ||
| } | ||
|
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| // attributes.add(new Attribute("class", null)); | ||
|
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| InstancesHeader instancesHeader = new InstancesHeader( | ||
| new Instances(null, attributes, 0)); | ||
| instancesHeader.setClassIndex(instancesHeader.numAttributes() - 1); | ||
|
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| return instancesHeader; | ||
| } | ||
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| @Override | ||
| public Instance getInstance() { | ||
| Instance inst = new DenseInstance(1.0, this.data); | ||
| inst.setDataset(generateHeader()); | ||
| return new DataPoint(inst, this.timeStamp); | ||
| } | ||
| } |
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