[Interview experience & eight-part essay] Search and promotion direction: common interview questions (4)
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- [Interview experience & eight-part essay] Search and promotion direction: common interview questions (4)
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- 1. What is the difference between ctr and cvr models. ESMM model
- 2. User/item similarity measurement index, feature correlation measurement index
- 3. How is the ROC curve drawn?
- 4. What are the commonly used hyperparameter tuning methods?
- 7. Softmax overflow and underflow
- 8. Why do continuous features need to be discretized in LR?
- 9. What is online learning? Why use online learning? What are the methods?
- 10. Is there any way to evaluate feature effectiveness?
- 11. NDCG ranking evaluation index
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