From 8d900b6027c322a729361474d51e01703612ee76 Mon Sep 17 00:00:00 2001
From: Ondrej Cifka <ondra@cifka.com>
Date: Thu, 21 Jun 2018 00:34:03 +0200
Subject: [PATCH] Add eval_saved.py

---
 examples/eval_saved.py | 91 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100755 examples/eval_saved.py

diff --git a/examples/eval_saved.py b/examples/eval_saved.py
new file mode 100755
index 00000000..195e817c
--- /dev/null
+++ b/examples/eval_saved.py
@@ -0,0 +1,91 @@
+# Copyright (c) 2017-present, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+#
+
+"""
+A script to run SentEval on pre-computed embeddings from a file.
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+import argparse
+import json
+import logging
+import sys
+
+import numpy as np
+
+# Set PATHs
+PATH_TO_SENTEVAL = '../'
+PATH_TO_DATA = '../data'
+
+sys.path.insert(0, PATH_TO_SENTEVAL)
+import senteval
+
+
+def main():
+    logging.basicConfig(format='%(asctime)s : %(message)s',
+                        level=logging.DEBUG)
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument('sentences',
+                        help='a text file containing all SentEval sentences')
+    parser.add_argument('embeddings',
+                        help='a NumPy binary file containing the corresponding embeddings')
+    parser.add_argument('-t', '--tasks',
+                        help='a comma-separated list of tasks')
+    args = parser.parse_args()
+
+    sent2emb = {}
+
+    def join_sentence(sent):
+        if sys.version_info < (3, 0):
+            sent = [w.decode('utf-8') if isinstance(w, str) else w for w in sent]
+        else:
+            sent = [w.decode('utf-8') if isinstance(w, bytes) else w for w in sent]
+        return ' '.join(sent)
+
+    def prepare(params, samples):
+        # Build the mapping from sentences to embeddings
+        sent2emb.clear()
+        samples_set = set(join_sentence(sent) for sent in samples)
+        all_embeddings = np.load(args.embeddings, mmap_mode='r')
+        with open(args.sentences) as f_sent:
+            for i, sent in enumerate(f_sent):
+                if sys.version_info < (3, 0):
+                    sent = sent.decode('utf-8')
+                sent = sent.rstrip('\n')
+                if sent in samples_set:
+                    sent2emb[sent] = all_embeddings[i]
+
+    def batcher(params, batch):
+        embeddings = np.stack(
+            [sent2emb[join_sentence(sent)] for sent in batch])
+        if len(embeddings.shape) != 2:
+            embeddings = embeddings.reshape(len(embeddings), -1)
+        assert len(embeddings.shape) == 2
+        return embeddings
+
+    params_senteval = {
+        'task_path': PATH_TO_DATA, 'usepytorch': True, 'kfold': 10
+    }
+    params_senteval['classifier'] = {
+        'nhid': 0, 'optim': 'adam', 'batch_size': 64, 'tenacity': 5,
+        'epoch_size': 4
+    }
+
+    se = senteval.engine.SE(params_senteval, batcher, prepare)
+    if args.tasks is not None:
+        transfer_tasks = args.tasks.split(',')
+    else:
+        transfer_tasks = se.list_tasks
+
+    results = se.eval(transfer_tasks)
+    json.dump(results, sys.stdout, skipkeys=True)
+
+
+if __name__ == '__main__':
+    main()