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Monotone constraints in GBM can cause issues with reproducing the model #7403

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exalate-issue-sync bot opened this issue May 11, 2023 · 2 comments
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Monotone constraints in GBM can cause issues with reproducing the model #7403

exalate-issue-sync bot opened this issue May 11, 2023 · 2 comments
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fixVersion/3.32.1.5

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If a dataset has highly correlated columns and monotonicity constraints are used on one of them, independent attempts to build the same model with identical parameters can lead to slightly different models. This is caused by non-determinism in histogram building - this non-determinism is compensated for split points but monotone constraints are not leveraging the same mechanism.

The solution is to avoid any non-determinism when monotone constraints are used.
@h2o-ops
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h2o-ops commented May 14, 2023

JIRA Issue Details

Jira Issue: PUBDEV-8250
Assignee: Michal Kurka
Reporter: Michal Kurka
State: Resolved
Fix Version: 3.32.1.5
Attachments: N/A
Development PRs: Available

@h2o-ops
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h2o-ops commented May 14, 2023

Linked PRs from JIRA

#5586
#5602

@h2o-ops h2o-ops closed this as completed May 14, 2023
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