Author

Chen Wei

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Jul 2026

Less Data, Better Alignment: Data-Centric Multi-Evaluator Agreement for Preference Optimization

This method generates candidate responses from the target policy, evaluates helpfulness, factuality, and conciseness with rubric-specialized evaluators, applies a process-critic correction, and retains only high-consensus desirable or undesirable examples.

Zhengtao Yao, Run-Hao Li, Xu-Peng Chen et al. · arXiv.org · 0 citations

Jul 2026

PreDiff-LM: Pretrained Discrete Masked Diffusion Language Modeling with Hybrid Attention

PreDiff-LM preserves causal attention within the observed prompt while allowing full bidirectional attention within the masked target, position hybrid attention as a complementary mechanism for adapting pretrained causal backbones, while making explicit the remaining quality and inference-efficiency gaps to optimized A...

Zhengtao Yao, Run-Hao Li, Xu-Peng Chen et al. · arXiv.org · 0 citations