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Author

Zhenghao Liu

3 papers indexed here

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#natural language process... Preprint Sep 2026

LexReward: A Taxonomy-Driven Reward Framework for Legal Language Models

Experiments show that the rubric-based rewards reliably distinguish legal responses of different quality and that DPO training on the preference data improves performance across all three dimensions, and Dimension-wise analyses further support the effectiveness of the proposed taxonomy and reward construction.

Yi-Da Cai, Xin Dai, Bing-Xiang He et al. · 0 citations

KARE-RAG: Knowledge-Aware Refinement and Enhancement for RAG

KARE-RAG (Knowledge-Aware Refinement and Enhancement for RAG), a training-time scaffolded alignment framework that uses structured knowledge representations as temporary scaffolds to expose evidence organization, support localized factual refinement, and construct fine-grained preference pairs is presented.

Yongjian Li, Haocheng Chu, Yu-Kun Yan et al. · 0 citations
#natural language process... Preprint Sep 2026

LexIssue: Benchmarking Legal Issue Identification in Chinese Civil Litigation

Experimental results across a diverse set of models show that retrieval-augmented generation using the constructed legal issue knowledge base consistently improves performance in identifying disputed legal issues and their corresponding legal attributes.

Hui-Yuan Xie, Yuqi Huang, Zhi-Cheng Hao et al. · 0 citations

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