Let the Prototype Guide You: Robust Aggregation of Sparse Multi-Class Annotations via Annotator Prototype Learning

ORID KJq0iScNM6 · tags icml2026-repro paper-KJq0iScNM6

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1VERIFIED 2/201-ptbcc-prototype-driven-bayesian-classifier-combiartifactPTBCC (Prototype-driven Bayesian Classifier Combination) models annotators via a…
2VERIFIED 2/202-ptbcc-accuracy-improvement-best-baselineartifactPTBCC achieves up to 15% accuracy improvement over the best baseline in its best…
3VERIFIED 2/203-across-real-world-crowdsourcing-datasets-ptbccartifactAcross 11 real-world crowdsourcing datasets, PTBCC attains an average accuracy o…
4VERIFIED 2/204-ptbcc-ablation-prototype-set-sizeartifactPTBCC's ablation over prototype set size |S| shows accuracy peaking at |S|=2 (0.…
5VERIFIED 2/205-ptbcc-uses-computational-cost-confusion-matrix-bartifactPTBCC uses less than 10% of the computational cost of confusion-matrix-based bas…

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