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Related papers: LeCaRDv2: A Large-Scale Chinese Legal Case Retriev…

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Retrieval-Augmented Generation (RAG) has emerged as a promising technology for legal document consultation, yet its application in Chinese legal scenarios faces two key limitations: existing benchmarks lack specialized support for joint…

Computation and Language · Computer Science 2026-03-13 Yaocong Li , Qiang Lan , Leihan Zhang , Le Zhang

Statute retrieval aims to find relevant statutory articles for specific queries. This process is the basis of a wide range of legal applications such as legal advice, automated judicial decisions, legal document drafting, etc. Existing…

Information Retrieval · Computer Science 2024-06-24 Weihang Su , Yiran Hu , Anzhe Xie , Qingyao Ai , Zibing Que , Ning Zheng , Yun Liu , Weixing Shen , Yiqun Liu

Large language models (LLMs) have made significant progress in natural language processing tasks and demonstrate considerable potential in the legal domain. However, legal applications demand high standards of accuracy, reliability, and…

Computation and Language · Computer Science 2024-11-27 Haitao Li , You Chen , Qingyao Ai , Yueyue Wu , Ruizhe Zhang , Yiqun Liu

Legal case retrieval (LCR) aims to provide similar cases as references for a given fact description. This task is crucial for promoting consistent judgments in similar cases, effectively enhancing judicial fairness and improving work…

Information Retrieval · Computer Science 2024-10-10 Cheng Gao , Chaojun Xiao , Zhenghao Liu , Huimin Chen , Zhiyuan Liu , Maosong Sun

Legal Case Retrieval (LCR), which retrieves relevant cases from a query case, is a fundamental task for legal professionals in research and decision-making. However, existing studies on LCR face two major limitations. First, they are…

Computation and Language · Computer Science 2025-10-07 Chaeeun Kim , Jinu Lee , Wonseok Hwang

Recognizing facts is the most fundamental step in making judgments, hence detecting events in the legal documents is important to legal case analysis tasks. However, existing Legal Event Detection (LED) datasets only concern incomprehensive…

Computation and Language · Computer Science 2022-03-17 Feng Yao , Chaojun Xiao , Xiaozhi Wang , Zhiyuan Liu , Lei Hou , Cunchao Tu , Juanzi Li , Yun Liu , Weixing Shen , Maosong Sun

In this report, we introduce our first-generation reasoning model, LexPro-1.0, a large language model designed for the highly specialized Chinese legal domain, offering comprehensive capabilities to meet diverse realistic needs. Existing…

Computation and Language · Computer Science 2025-03-12 Haotian Chen , Yanyu Xu , Boyan Wang , Chaoyue Zhao , Xiaoyu Han , Fang Wang , Lizhen Cui , Yonghui Xu

Statute retrieval is essential for legal assistance and judicial decision support, yet real-world legal queries are often implicit, multi-issue, and expressed in colloquial or underspecified forms. These characteristics make it difficult…

Information Retrieval · Computer Science 2026-01-27 Yunhan Li , Mingjie Xie , Gaoli Kang , Zihan Gong , Gengshen Wu , Min Yang

While large language models (LLMs) have showcased impressive capabilities, they struggle with addressing legal queries due to the intricate complexities and specialized expertise required in the legal field. In this paper, we introduce…

Computation and Language · Computer Science 2024-06-24 Zhiwei Fei , Songyang Zhang , Xiaoyu Shen , Dawei Zhu , Xiao Wang , Maosong Cao , Fengzhe Zhou , Yining Li , Wenwei Zhang , Dahua Lin , Kai Chen , Jidong Ge

Legal relations serve as an important analytical framework for dispute resolution in civil cases. However, legal relations in Chinese civil cases remain underexplored in the field of legal AI, largely due to the absence of comprehensive…

Computation and Language · Computer Science 2026-04-21 Yida Cai , Ranjuexiao Hu , Huiyuan Xie , Chenyang Li , Yun Liu , Yuxiao Ye , Zhenghao Liu , Weixing Shen , Zhiyuan Liu

Large Language Models (LLMs) are increasingly tasked with analyzing legal texts and citing relevant statutes, yet their reliability is often compromised by general pre-training that ingests legal texts without specialized focus, obscuring…

Computation and Language · Computer Science 2025-09-26 Xinzhe Xu , Liang Zhao , Hongshen Xu , Chen Chen

Large language models (LLMs), including both proprietary and open-source models, have showcased remarkable capabilities in addressing a wide range of downstream tasks. Nonetheless, when it comes to practical Chinese legal tasks, these…

Computation and Language · Computer Science 2024-06-10 Zhi Zhou , Jiang-Xin Shi , Peng-Xiao Song , Xiao-Wen Yang , Yi-Xuan Jin , Lan-Zhe Guo , Yu-Feng Li

Given the rapid development of Legal AI, a lot of attention has been paid to one of the most important legal AI tasks--similar case retrieval, especially with language models to use. In our paper, however, we try to improve the ranking…

Computation and Language · Computer Science 2025-07-29 Yuqi Liu , Yan Zheng

Traditional legal retrieval systems designed to retrieve legal documents, statutes, precedents, and other legal information are unable to give satisfactory answers due to lack of semantic understanding of specific questions. Large Language…

Computation and Language · Computer Science 2024-08-02 Nan Xie , Yuelin Bai , Hengyuan Gao , Feiteng Fang , Qixuan Zhao , Zhijian Li , Ziqiang Xue , Liang Zhu , Shiwen Ni , Min Yang

Legal claims refer to the plaintiff's demands in a case and are essential to guiding judicial reasoning and case resolution. While many works have focused on improving the efficiency of legal professionals, the research on helping…

Computation and Language · Computer Science 2025-10-28 Siying Zhou , Yiquan Wu , Hui Chen , Xavier Hu , Kun Kuang , Adam Jatowt , Ming Hu , Chunyan Zheng , Fei Wu

In this paper, we introduce the \textbf{C}hinese \textbf{AI} and \textbf{L}aw challenge dataset (CAIL2018), the first large-scale Chinese legal dataset for judgment prediction. \dataset contains more than $2.6$ million criminal cases…

Computation and Language · Computer Science 2018-07-09 Chaojun Xiao , Haoxi Zhong , Zhipeng Guo , Cunchao Tu , Zhiyuan Liu , Maosong Sun , Yansong Feng , Xianpei Han , Zhen Hu , Heng Wang , Jianfeng Xu

Legal case retrieval (LCR) is a cornerstone of real-world legal decision making, as it enables practitioners to identify precedents for a given query case. Existing approaches mainly rely on traditional lexical models and pretrained…

Information Retrieval · Computer Science 2025-10-31 Yanran Tang , Ruihong Qiu , Xue Li , Zi Huang

As a pivotal task in natural language processing, element extraction has gained significance in the legal domain. Extracting legal elements from judicial documents helps enhance interpretative and analytical capacities of legal cases, and…

Computation and Language · Computer Science 2023-10-11 Xue Zongyue , Liu Huanghai , Hu Yiran , Kong Kangle , Wang Chenlu , Liu Yun , Shen Weixing

As social systems become increasingly complex, legal articles are also growing more intricate, making it progressively harder for humans to identify any potential competitions among them, particularly when drafting new laws or applying…

Computation and Language · Computer Science 2024-12-17 Seonho An , Young Yik Rhim , Min-Soo Kim

In last decades, legal case search has received more and more attention. Legal practitioners need to work or enhance their efficiency by means of class case search. In the process of searching, legal practitioners often need the search…

Information Retrieval · Computer Science 2023-01-31 Ruizhe Zhang , Qingyao Ai , Yueyue Wu , Yixiao Ma , Yiqun Liu
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