NLP - Topic Modeling
You have two topic models with coherence scores 0.35 and 0.55. What should you do to improve the model with 0.35 coherence?
You have two topic models with coherence scores 0.35 and 0.55. What should you do to improve the model with 0.35 coherence?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand coherence score meaning
A higher coherence score means better topic quality and interpretability.Step 2: Improve model by adjusting topics
Increasing or tuning the number of topics can improve coherence by better capturing themes.Step 3: Evaluate other options
Reducing dataset size or ignoring coherence won't improve quality; changing measure without retraining is ineffective.Final Answer:
Increase the number of topics and recalculate coherence -> Option AQuick Check:
Better coherence = tune topics [OK]
Quick Trick: Tune topic count to improve coherence [OK]
Common Mistakes:
MISTAKES- Ignoring coherence scores
- Changing measure without retraining
- Reducing data size instead of improving model
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