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updated tunables for boosting #1306

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Merged
merged 2 commits into from
Nov 19, 2025
Merged

updated tunables for boosting #1306

merged 2 commits into from
Nov 19, 2025

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@topepo topepo commented Nov 16, 2025

  • lightgbm and catboost have smaller default ranges for the learning rate: -3 to -1 / 2 in log10 units.
  • lightgbm, xgboost, catboost, and C5.0 have smaller default ranges for the sampling proportion: 0.5 to 1.0.
  • catboost engine arguments were added for max_leaves and l2_leaf_reg.

topepo added a commit to tidymodels/bonsai that referenced this pull request Nov 16, 2025
@topepo
coincidental PR for parsnip tidymodels/parsnip#1306
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@topepo topepo mentioned this pull request Nov 16, 2025
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@topepo topepo requested a review from EmilHvitfeldt November 16, 2025 17:40
@topepo topepo marked this pull request as ready for review November 18, 2025 13:48
EmilHvitfeldt
EmilHvitfeldt approved these changes Nov 19, 2025
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@EmilHvitfeldt EmilHvitfeldt merged commit 86589b1 into main Nov 19, 2025
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@EmilHvitfeldt EmilHvitfeldt deleted the boosting-parameter-updates branch November 19, 2025 16:12
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