2.0.0, 2017-04-10

Breaking changes:

Any direct calls to method train() of Word2Vec/Doc2Vec now require an explicit epochs parameter and explicit estimate of corpus size. The most usual way to call train is vec_model.train(sentences, total_examples=self.corpus_count, epochs=self.iter)
See the method documentation for more information.

• Explicit epochs and corpus size in word2vec train(). (@gojomo, @robotcator, #1139, #1237)

New features:

• Add output word prediction in word2vec. Only for negative sampling scheme. See ipynb (@chinmayapancholi13,#1209)
• scikit_learn wrapper for LSI Model in Gensim (@chinmayapancholi13,#1244)
• Add the 'keep_tokens' parameter to 'filter_extremes'. (@toliwa,#1210)
• Load FastText models with specified encoding (@jayantj,#1210)

Improvements:

• Fix loading large FastText models on Mac. (@jaksmid,#1196)
• Sklearn LDA wrapper now works in sklearn pipeline (@kris-singh,#1213)
• glove2word2vec conversion script refactoring (@parulsethi,#1247)
• Word2vec error message when update called before train . Fix #1162 (@hemavakade,#1205)
• Allow training if model is not modified by "_minimize_model". Add deprecation warning. (@chinmayapancholi13,#1207)
• Update the warning text when building vocab on a trained w2v model (@prakhar2b,#1190)

Bug fixes:

• Fix word2vec reset_from bug in v1.0.1 Fix #1230. (@Kreiswolke,#1234)

• Distributed LDA: checking the length of docs instead of the boolean value, plus int index conversion (@saparina ,#1191)

• syn0_lockf initialised with zero in intersect_word2vec_format() (@KiddoZhu,#1267)

• Fix wordrank max_iter_dump calculation. Fix #1216 (@ajkl,#1217)

• Make SgNegative test use sg (@shubhvachher ,#1252)

• pep8/pycodestyle fixes for hanging indents in Summarization module (@SamriddhiJain ,#1202)

• WordRank and Mallet wrappers single vs double quote issue in windows.(@prakhar2b,#1208)

• Fix #824 : no corpus in init, but trim_rule in init (@prakhar2b ,#1186)

• Hardcode version number. Fix #1138. ( @tmylk, #1138)

Tutorial and doc improvements:

• Color dictionary according to topic notebook update (@bhargavvader, #1164)

• Fix hdp show_topic/s docstring ( @parulsethi, #1264)

• Add docstrings for word2vec.py forwarding functions ( @shubhvachher, #1251)

• updated description for worker_loop function used in score function ( @chinmayapancholi13 , #1206)