Hiroyuki Vincent Yamazaki

Results 9 issues of Hiroyuki Vincent Yamazaki

## Motivation `FrozenTrial` can now be passed to objective functions thanks to https://github.com/optuna/optuna/pull/1503. Additional documentation could be helpful, e.g. that changes to user attributes are not persisted, actually, that those...

document
contribution-welcome
optuna.trial
no-stale
description-checked

## Motivation A `crossover` parameter is to be added to the NSGA-II sampler as seen in https://github.com/optuna/optuna/pull/2903. This PR expects a follow up PR that addresses the following https://github.com/optuna/optuna/pull/2903#issuecomment-964736529. -...

enhancement
contribution-welcome
optuna.samplers
no-stale
description-checked

## Motivation Trial post processing was recently introduced in #2134 . Similarly, we could introduce trial pre processing with something along `BaseSampler.before_trial`. Samplers that would benefit from this would include...

feature
needs-discussion

## Motivation The objective function type hint says that its parameter should be of type `Trial`. However, https://github.com/optuna/optuna/pull/1503 will allow `FrozenTrial`s (which will derive from `BaseTrial` but not `Trial`) to...

feature
compatibility
needs-discussion

This is a wrapper for the [Visual Genome](http://visualgenome.org/) dataset that I am currently working on. Initially planning to support Region Descriptions (bounding boxes with captions) only but will be grateful...

feature

Some examples are not tested by the daily CI. All examples in this repository preferably should. See https://github.com/optuna/optuna-examples/pull/1#issuecomment-837856331.

contribution-welcome
stale

Consider adding type hints to the code and run mypy in the CI (`optuna` itself has type hints). In addition to the static checking, type hints acts as documentation. The...

contribution-welcome
stale

See https://github.com/optuna/kurobako/pull/39#discussion_r657630351 Ref. https://hub.docker.com/r/sile/kurobako, https://hub.docker.com/u/optuna

## Motivation Batch optimization is not a native feature in Optuna but has been discussed several times in the past. This is a high level tracking issue for such batch...

feature
needs-discussion