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Which of the following is the correct way to set the number of topics in a typical LDA model using Python's gensim library?

easy📝 Syntax Q12 of 15
NLP - Topic Modeling
Which of the following is the correct way to set the number of topics in a typical LDA model using Python's gensim library?
Alda_model = LdaModel(corpus, n_topics=5, id2word=dictionary)
Blda_model = LdaModel(corpus, topics=5, id2word=dictionary)
Clda_model = LdaModel(corpus, num_topics=5, id2word=dictionary)
Dlda_model = LdaModel(corpus, topic_number=5, id2word=dictionary)
Step-by-Step Solution
Solution:

  1. Step 1: Recall gensim LDA parameter names

    The correct parameter to set number of topics is num_topics.

  2. Step 2: Check each option

    Only lda_model = LdaModel(corpus, num_topics=5, id2word=dictionary) uses num_topics=5, others use incorrect parameter names.

  3. Final Answer:

    lda_model = LdaModel(corpus, num_topics=5, id2word=dictionary) -> Option C

  4. Quick Check:

    Parameter name for topics = num_topics [OK]
Quick Trick: Use 'num_topics' parameter to set topic count in gensim LDA [OK]
Common Mistakes:
MISTAKES
  • Using 'topics' or 'n_topics' instead of 'num_topics'
  • Confusing parameter names from other libraries
  • Omitting the id2word dictionary parameter

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