optuna

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## Motivation I simplified the implementation of `IntersectionSearchSpace.calculate` a little. ## Description of the changes Directly filter the search space dictionary instead of creating a delete list and deleting them...

knshnb

Gather mask of None parameter in TPESampler

8

## Motivation Previously, in TPESampler, the mask of removing None parameters (= parameters that do not appear in the trial) was taken in two different places, which can easily cause...

knshnb

Add journal-style log storage to optuna

2

## Motivation Introduce **JournalStorage** to optuna. Journal storage writes a record of every operation to the database as it is executed and at the same time, keeps a latest snapshot...

rotaki

get_all_study_summaries throws Exception: list index out of range when loading study in optuna-dashboard

3

### Expected behavior Study should load dashboard so I can visualize, traverse table of parameter info ### Environment - Optuna version: 2.10.1 - Python version: 3.8.10 - OS:Linux-5.4.0-122-generic-x86_64-with-glibc2.29 - (Optional)...

blazespinnaker

How to make Sampler avoid a known-to-fail parameter configuration?

5

### Environment - Optuna version: 2.10 ### Description Certain parameter configurations result in an Out-Of-Memory error, and will every time. However, when I return a FAIL status, the Sampler often...

JRice15

Use `copybutton_prompt_text` not to copy the bash prompt

2

## Motivation When we click the copy button (concretely, see also the bottom right corner in the screenshot below) on the code snippet of a command line example, the prompt...

nzw0301

[RFC] Enable trial report multiple intermediate values by `trial.report`

32

### Motivation Requested by https://github.com/optuna/optuna/issues/2792 With this change, users will be able to implement multi-objective pruning algorithms easily. In addition, storing intermediate values for multi-objective optimisation is supposed to be...

nzw0301

Make nsgaii docs informative

1

## Motivation Resolve #3512 ## Description of the changes As suggested by https://github.com/optuna/optuna/issues/3512#issuecomment-1134075708: > I think it is sufficient to add a note section above the `optuna.samplers.nsgaii` part like that...

nzw0301

## Motivation Currently, TPE sampler's `constant_liar` argument is ignored for multi-objective function as pointed out by https://github.com/optuna/optuna/issues/3565. This feature should be clarified in the documentation as suggested by https://github.com/optuna/optuna/issues/3565#issuecomment-1166913554. ##...

nzw0301

Better description of how error/fail states are handled by samplers

3

### What is an issue? There seem to be three ways to report something going wrong in the objective function: * Pruning * Returning a FAIL status (by returning None...

JRice15