arxivcs.LGcs.CL2026-07-09
Ensemble Diversity Optimization for Subjective Supervision
Xia Cui, Ziyi Huang, N. R. Abeynayake
Subjective NLP tasks often exhibit systematic annotator disagreement, requiring models that represent uncertainty rather than collapse it. We introduce Ensemble Diversity Optimization (EDO), a prediction-space framework that jointly optimizes ensemble weights, effective cardinali…