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* link to support ticket: [#2024082960001372](https://otrsdict.ugent.be/otrs/index.pl?Action=AgentTicketZoom;TicketID=166289)
* website: https://optuna.org
* installation docs: https://optuna.org/#i…
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**Describe the bug**
first of all, I love the library and **thank you** for open sourcing and maintaining it.
Issue:
I am optimizing a forecasting model with Optuna and the individual trials fin…
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Exception in LightgbmObjective Optuna's integration modules for third-party libraries have started migrating from Optuna itself to a package called `optuna-integration`. The module you are trying to u…
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We are starting to accumulate some parameters in hapestry, which could benefit from parameter tuning (as with Optuna).
To start with, these seem like good candidates (in order of priority):
- **d…
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### What is an issue?
The catboost callback does not work with GPUs as noted in https://github.com/optuna/optuna/pull/3903. However the last stable catboost has supported the callback on GPUs ([ref](…
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### Description
There is an issue with the visualization of contour plots in Optuna Dashboard when using categorical parameters. The problem occurs when trying to plot a contour graph with a cate…
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Although Optuna is used for hyperparameter tuning in the project, the tuning results may vary across different environments. How can the reproducibility of hyperparameter tuning be ensured?
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Hi, I'm using the neptune-optuna integration, and I found the numbering in neptuna a bit confusing. Shouldn't the trial._trial_id (counted in the database across studies, which does not start from 0 …
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# 🚀 Feature Request
- It would be awesome if the Optuna **study object** created [here](https://github.com/facebookresearch/hydra/blob/809718cdcd64f9cd930d26dea69f2660a6ffa833/plugins/hydra_optuna_…
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### Description
**Observed behavior:**
When I select a categorical parameter that contains boolean values in the slice plot (first plot shown in the analytics page) then both values on the x-axis ar…