[jvm-packages] return the best model after early stop
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feature-request
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Description
Does xgboost4j-spark support to get the best model after early stop?
It seems it will get the model at that iteration which is best iteration + num_early_stopping_rounds, am i wrong?
how could i get the best model?
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Research direction
Start by examining the xgboost4j-spark early-stopping behavior and the model-retrieval API mentioned in the issue. Reproduce whether the returned model is from best iteration or a later iteration, then establish and document the expected way to obtain the best model.
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Assessment
- Domain
- machine-learning
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100