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doc: local trees parameter documentation #2636

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19051b9
doc: local trees parameter documentation
ethanglaser Jul 30, 2025
1242c79
Update doc/sources/algorithms.rst
ethanglaser Jul 30, 2025
f279089
Update doc/sources/algorithms.rst
ethanglaser Jul 30, 2025
6f0363a
Merge branch 'main' into dev/eglaser-local-trees-doc
ethanglaser Sep 26, 2025
1d075e5
add local_trees_mode details to tuning guide
ethanglaser Sep 26, 2025
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8 changes: 8 additions & 0 deletions doc/sources/algorithms.rst
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Expand Up @@ -473,6 +473,10 @@ Classification
- ``criterion`` != `'gini'`
- ``oob_score`` = `True`
- ``sample_weight`` != `None`

**Additional parameters:**

- ``local_trees_mode`` (bool, default=False): Enables local trees mode for distributed training. `n_estimators` is per rank, with isolated learning occurring on each processor before merging into a single model. This mode is experimental but scales better than default. This parameter is specific to the SPMD implementation and is not present in the standard scikit-learn API.
- Multi-output and sparse data are not supported
* - :obj:`sklearn.ensemble.ExtraTreesClassifier`
- All parameters are supported except:
Expand Down Expand Up @@ -525,6 +529,10 @@ Regression
- ``criterion`` != `'mse'`
- ``oob_score`` = `True`
- ``sample_weight`` != `None`

**Additional parameters:**

- ``local_trees_mode`` (bool, default=False): Enables local trees mode for distributed training. `n_estimators` is per rank, with isolated learning occurring on each processor before merging into a single model. This mode is experimental but scales better than default. This parameter is specific to the SPMD implementation and is not present in the standard scikit-learn API.
- Multi-output and sparse data are not supported
* - :obj:`sklearn.ensemble.ExtraTreesRegressor`
- All parameters are supported except:
Expand Down
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