def gensim(self):
# https://radimrehurek.com/gensim/dist_lsi.html
# https://radimrehurek.com/gensim/models/lsimodel.html
corpus = corpora.MmCorpus('../lda/lda_sources/documents_corpus.mm')
id2word = corpora.Dictionary.load('../lda/lda_sources/documents_dictionary.dict')
lsi = models.LsiModel(corpus, id2word=id2word, num_topics=self.dimensions)
return lsi
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