LeCaRDv2: A Large-Scale Chinese Legal Case Retrieval Dataset

no code implementations • 26 Oct 2023 • Haitao Li, Yunqiu Shao, Yueyue Wu, Qingyao Ai, Yixiao Ma, Yiqun Liu

However, the development of legal case retrieval technologies in the Chinese legal system is restricted by three problems in existing datasets: limited data size, narrow definitions of legal relevance, and naive candidate pooling strategies used in data sampling.

Fairness Retrieval

An Intent Taxonomy of Legal Case Retrieval

no code implementations • 25 Jul 2023 • Yunqiu Shao, Haitao Li, Yueyue Wu, Yiqun Liu, Qingyao Ai, Jiaxin Mao, Yixiao Ma, Shaoping Ma

Through a laboratory user study, we reveal significant differences in user behavior and satisfaction under different search intents in legal case retrieval.

Information Retrieval Retrieval +1

THUIR@COLIEE-2020: Leveraging Semantic Understanding and Exact Matching for Legal Case Retrieval and Entailment

no code implementations • 24 Dec 2020 • Yunqiu Shao, Bulou Liu, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

We participated in the two case law tasks, i. e., the legal case retrieval task and the legal case entailment task.

Retrieval Task 2