CODEWITHSUNDEEP
pythonldagensim
CentAu
CentAu

Reputation: 11190

Gensim get topic for a document (seen document)

I know that after training the lda model for gensim, we can get the topic for an unseen document by:

lda = LdaModel(corpus, num_topics=10)
doc_lda = lda[doc_bow]

But how about the documents that are already used for training? I mean is there a way to get the topic for a document in corpus that was used in training without treating it like a new document?

Upvotes: 8

Views: 1843

Answers (1)

Radim
Radim

Reputation: 4276

No.

Information from individual documents is distilled into the model, then forgotten. No per-document information is kept (more generally: no information that would require O(#docs) memory is kept).

Upvotes: 8

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