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Change the default independent_sampler of CmaEsSampler #2951

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keisuke-umezawa opened this issue Sep 23, 2021 · 6 comments
Closed

Change the default independent_sampler of CmaEsSampler #2951

keisuke-umezawa opened this issue Sep 23, 2021 · 6 comments
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feature Change that does not break compatibility, but affects the public interfaces. optuna.samplers Related to the `optuna.samplers` submodule. This is automatically labeled by github-actions. stale Exempt from stale bot labeling.

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@keisuke-umezawa
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Motivation

CmaEsSampler can sample numbers, but not category values. Currently, when trying to sample from a categorical distribution, the sampler specified in independent_sampler will be called instead, and RandomSampler will be called with the default setting. If a more appropriate independent_sampler is specified by default, it may be possible to recommend CmaEsSampler for problems involving category values.

Description

Appropriate independent_sampler is specified by default from the following points of view:

  • Execution speed
  • Convergence speed and stability validated by the benchmark tool kurobako
@keisuke-umezawa keisuke-umezawa added feature Change that does not break compatibility, but affects the public interfaces. no-stale Exempt from stale bot v3 Issue/PR for Optuna version 3. labels Sep 23, 2021
@Crissman Crissman added contribution-welcome Issue that welcomes contribution. Hacktoberfest Good first issues to participate in Hacktoberfest labels Sep 30, 2021
@HideakiImamura
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#2964 (comment)

As above, currently, we have several benchmark task candidates. For those tasks, we should conduct a experiment to compare each independent_sampler.

@toshihikoyanase toshihikoyanase removed the Hacktoberfest Good first issues to participate in Hacktoberfest label Nov 11, 2021
@HideakiImamura HideakiImamura added the optuna.samplers Related to the `optuna.samplers` submodule. This is automatically labeled by github-actions. label Dec 20, 2021
@HideakiImamura HideakiImamura mentioned this issue Jan 21, 2022
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@g-votte g-votte removed the contribution-welcome Issue that welcomes contribution. label May 20, 2022
@HideakiImamura
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We have decided to postpone this task after V3.

@HideakiImamura HideakiImamura removed the v3 Issue/PR for Optuna version 3. label Jul 11, 2022
@g-votte g-votte removed the no-stale Exempt from stale bot label Sep 12, 2022
@github-actions
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This issue has not seen any recent activity.

@github-actions github-actions bot added the stale Exempt from stale bot labeling. label Sep 26, 2022
@github-actions
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This issue was closed automatically because it had not seen any recent activity. If you want to discuss it, you can reopen it freely.

@g-votte g-votte removed the stale Exempt from stale bot labeling. label Oct 24, 2022
@g-votte g-votte reopened this Oct 24, 2022
@github-actions
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This issue has not seen any recent activity.

@github-actions github-actions bot added the stale Exempt from stale bot labeling. label Aug 22, 2023
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This issue was closed automatically because it had not seen any recent activity. If you want to discuss it, you can reopen it freely.

@github-actions github-actions bot closed this as not planned Won't fix, can't repro, duplicate, stale Aug 22, 2023
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feature Change that does not break compatibility, but affects the public interfaces. optuna.samplers Related to the `optuna.samplers` submodule. This is automatically labeled by github-actions. stale Exempt from stale bot labeling.
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@g-votte @keisuke-umezawa @toshihikoyanase @Crissman @HideakiImamura