intermediate values and objective value use different metrics in `LightGBMPruningCallback`
nzw0301 opened this issue · 2 comments
nzw0301 commented
Expected behavior
In https://github.com/optuna/optuna-examples/blob/main/lightgbm/lightgbm_integration.py, the reported intermediate values should be the same metric as the objective value. However the current implementation, intermediate values are auc and the objective value is accuracy. If this is intended, at least some comments are necessary to warn the using different metrics.
Environment
- Optuna version: NA
- Python version: NA
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Error messages, stack traces, or logs
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