What is word_trace here?

kzhai / InfVocLDA

Online Latent Dirichlet Allocation with Infinite Vocabulary using Variational Inference

https://github.com/kzhai/InfVocLDA

Apache License 2.0

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Open gauravkoradiya opened 5 years ago

gauravkoradiya commented 5 years ago

I am a little bit confused here about word_trace matrix here. Can anyone explain to me what is the role of word_trace matrix here?