Hierarchical Dirichlet Process Gensim topic number independent of corpus size

Question

I am using the Gensim HDP module on a set of documents.

>>> hdp = models.HdpModel(corpusB, id2word=dictionaryB)
>>> topics = hdp.print_topics(         


        

Answer 1

I think you misunderstood the operation performed by the called method. Directly from the documentation you can see:

Alias for show_topics() that prints the top n most probable words for topics number of topics to log. Set topics=-1 to print all topics.

You trained the model without specifying the truncation level on the number of topics and the default one is 150. Calling the print_topics with topics=-1 you'll get the top 20 words for each topic , in your case 150 topics.

I'm still a newbie of the library, so maybe I' wrong