NLP - Topic Modeling
Which of the following is a common metric used to evaluate topic coherence?
Which of the following is a common metric used to evaluate topic coherence?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify common coherence metrics
C_V coherence is a popular metric combining several measures to evaluate topic coherence.Step 2: Eliminate unrelated metrics
Perplexity measures model fit, accuracy and recall are classification metrics, not coherence.Final Answer:
C_V coherence -> Option AQuick Check:
Common coherence metric = C_V coherence [OK]
Quick Trick: C_V is a popular coherence metric, not accuracy or recall [OK]
Common Mistakes:
MISTAKES- Confusing perplexity with coherence
- Using classification metrics for coherence
- Mixing up recall with coherence
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