A perturbation framework with Drop/Add/Flip and player-removal operations demonstrates that Bradley-Terry leaderboards are non-robust to sub-1% targeted changes that alter top ranks, Kendall tau, and confidence intervals.
A Diagnostic Framework for the
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A Unified Perturbation Framework for Analyzing Leaderboard Stability and Manipulation
A perturbation framework with Drop/Add/Flip and player-removal operations demonstrates that Bradley-Terry leaderboards are non-robust to sub-1% targeted changes that alter top ranks, Kendall tau, and confidence intervals.