NyayaMind让AI像法官一样透明推理,预测印度判案结果并给出法律依据。
NyayaMind- A Framework for Transparent Legal Reasoning and Judgment Prediction in the Indian Legal System

- 用检索+推理+验证三步模拟法庭决策流程
- 相比现有方法,解释更贴合法理、证据对齐度更高
- 适合法律研究与可信AI辅助判决系统开发者
法院判决预测与解释(CJPE)旨在基于案件事实、法律问题、论点、引用法条及先例,预测司法裁决并提供合法依据。为在司法或法律研究中实际应用,此类系统不仅需高预测性能,还需生成符合司法实践的透明、结构化法律推理。本文提出开源框架NyayaMind,支持印度司法体系下的可解释、可扩展法律推理。该框架整合检索、推理与验证机制,模拟法院典型决策过程。其包含两个核心组件:检索模块采用RAG管道从大规模法律语料中识别相关法条与判例;预测模块则使用针对印度法律领域微调的推理型大模型,生成包括问题、论点、理由与最终判决在内的结构化输出。大量实验与专家评估表明,相较于现有CJPE方法,NyayaMind显著提升解释质量与证据对齐程度,为可信AI辅助法律决策系统迈出重要一步。
原文摘要 · Abstract (English)
Court Judgment Prediction and Explanation (CJPE) aims to predict a judicial decision and provide a legally grounded explanation for a given case based on the facts, legal issues, arguments, cited statutes, and relevant precedents. For such systems to be practically useful in judicial or legal research settings, they must not only achieve high predictive performance but also generate transparent and structured legal reasoning that aligns with established judicial practices. In this work, we present NyayaMind, an open-source framework designed to enable transparent and scalable legal reasoning for the Indian judiciary. The proposed framework integrates retrieval, reasoning, and verification mechanisms to emulate the structured decision-making process typically followed in courts. Specifically, NyayaMind consists of two main components: a Retrieval Module and a Prediction Module. The Retrieval Module employs a RAG pipeline to identify legally relevant statutes and precedent cases from large-scale legal corpora, while the Prediction Module utilizes reasoning-oriented LLMs fine-tuned for the Indian legal domain to generate structured outputs including issues, arguments, rationale, and the final decision. Our extensive results and expert evaluation demonstrate that NyayaMind significantly improves the quality of explanation and evidence alignment compared to existing CJPE approaches, providing a promising step toward trustworthy AI-assisted legal decision support systems.
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