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text2vec 0.2.1 - development version

  1. 2016-01-13 fix for #46, thanks to @buhrmann for reporting
  2. 2016-01-16 format of vocabulary changed.
    • do not keep doc_proportions. see #52.
    • add stop_words argument to prune_vocabulary. signature also was changed.
  3. 2016-01-17 fix for #51. if iterator over tokens returns list with names, these names will be:
    1. stored as attr(corpus, 'ids')
    2. rownames in dtm
    3. names for dtm list in lda_c format

text2vec 0.2.0 (2016-01-10)

First CRAN release of text2vec.

  • Fast text vectorization with stable streaming API on arbitrary n-grams.
    • Functions for vocabulary extraction and management
    • Hash vectorizer (based on digest murmurhash3)
    • Vocabulary vectorizer
  • GloVe algorithm word embeddings.
    • Fast term-cooccurence matrix factorization via parallel async AdaGrad.
  • All core functions written in C++.