optuna 0.15.0

v0.15.0

on Python PyPI

This is the release note of v0.15.0. See here for the complete list of solved issues and merged PRs.

Compatibility

• Remove FronzenTrial.params_in_internal_repr field. (#462)

Enhancements

• Fix type hints and typo. (#494, thanks @c-bata!)
• Change types.py to type_checking.py. (#492, thanks @oda!)
• Reduce a query count of PercentilePruner and MedianPruner. (#482, thanks @c-bata!)
• Add empty distribution check. (#473)
• Make BaseStudy.storage field private. (#472)
• Reduce redundant code common to Study and InTrialStudy. (#470)

Bug Fixes

• Prevent TensorFlowPruningHook from reporting None. (#481)
• Add NaN intermediate value handling to TPESampler. (#476)

Documents

• Fix typo in keras integration example. (#488, thanks @scouvreur!)
• Add TPESampler document. (#474)
• Update BaseSampler document. (#456)
• Add a tutorial page about user-defined sampler. (#451)
• Set long_description in setup.py. (#420, thanks @c-bata!)

Examples

• Add a simple Dask-ML example. (#487, thanks @AnesBenmerzoug!)
• Add a catboost example. (#477, thanks @scouvreur!)
• Add an example that implements simulated annealing based sampler. (#446)