Skip to content

Add regularization parameter to pair selection weighting#99

Merged
kronosapiens merged 1 commit intomainfrom
kronosapiens/add-pair-regularization
Mar 13, 2026
Merged

Add regularization parameter to pair selection weighting#99
kronosapiens merged 1 commit intomainfrom
kronosapiens/add-pair-regularization

Conversation

@kronosapiens
Copy link
Collaborator

Introduces optional r parameter (0–1) to activeSelect() for blending pair selection weights toward uniform. At r=1 (default), full coverage×proximity×position weighting applies; at r=0, all pairs are equally likely; at r=0.5, weights interpolate 50/50.

This fixes the skew where under-observed entries get starved while already-highly-ranked entries dominate pair selection—particularly problematic when earlier bugs caused some entries (like athenor) to receive disproportionate comparisons. New judges now see a more balanced mix of entries instead of only low-ranked ones, while still biasing toward coverage and uncertainty reduction.

Sets production value to r=0.5 to smoothly regularize weighting without losing signal. Includes two new tests validating r behavior (uniform at r=0, compressed spread at r<1).

Introduces optional r parameter (0–1) to blend pair selection weights toward uniform.
At r=1 (default), full coverage×proximity×position weighting applies. At r=0, all pairs
equally likely. At r=0.5, weights are interpolated 50/50, fixing the issue where
under-observed entries get starved while already-ranked items dominate pair selection.

Fixes skew caused by earlier bugs where some entries received disproportionate
comparisons. New judges now see a more balanced mix of entries instead of only
low-ranked ones, while still biasing toward coverage and uncertainty reduction.

Co-Authored-By: Claude Haiku 4.5 <[email protected]>
@kronosapiens kronosapiens merged commit eaf1703 into main Mar 13, 2026
2 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant