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MatrixReward: Reward from Rubric Matrix for Open-Ended Generation

arXiv:2610.00389v1 Announce Type: cross Abstract: Open-ended query generation lacks standard answers, thus necessitating an effective reward mechanism. Pointwise scoring rubrics provide limited information about the relative quality of sample answers under the same prompt; merging multiple rubric j…

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  1. 2026-10-02 04:00 · arXiv stat.ML
    MatrixReward: Reward from Rubric Matrix for Open-Ended Generation

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