Author

Wei-Kang Li

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#natural language process... May 2026

ActTraitBench: Quantifying the Knowledge-Decision Gap in Large Language Models via Human-Grounded Behavioral Validation

ActTraitBench is proposed, a human-grounded evaluation framework for measuring personality consistency in LLMs that establishes one-to-one mappings between psychometric facets and behavioral paradigms and applies Distributional Calibration via Quantile Mapping to reduce distributional mismatch between LLM-judge scores...

Yu-Tong Yang, Chenxi Miao, Wei-Kang Li et al. · arXiv.org · 2 citations

#natural language process... May 2026

Trait-Aware Policy Optimization for Autoregressive Multi-Trait Essay Scoring

Experiments show that the proposed Trait-Aware Policy Optimization method consistently improves multi-trait scoring performance over supervised fine-tuning and scalar-reward optimization baselines, demonstrating the effectiveness and transferability of trait-aware post-training for essay scoring.

Zhengyang Wang, Sanwoo Lee, Jiaxin Wang et al. · arXiv.org · 2 citations