用因果发现算法自动生成法律论证,提升推理可靠性。
Can Causal Discovery Algorithms Help in Generating Legal Arguments?

- 从150个谋杀案中提取17个法律概念,构建标注数据集。
- 发现部分因果关系概率达1,可直接支持法律论证推导。
- 首次将因果算法用于法律推理,适合法律AI研究者参考。
2011年,朱迪亚·珀尔因在人工智能领域发展概率与因果推理的计算体系而获图灵奖。其开创的因果发现算法可分析多变量数据,自动识别变量间的因果关系,已在医学、经济等领域广泛应用。然而,目前尚未见其应用于法律领域。本文尝试填补这一空白,探究因果发现算法是否可用于自动生成法律论证。为此,研究构建了一个新型法律数据集,识别出17个法律概念(如身体袭击、财产纠纷),并标注了150个谋杀案,例如仅当案件中报告了身体袭击时才标记该概念。随后,应用多种主流因果发现算法分析标注数据,挖掘法律概念间的因果关系,并以数学概率量化这些关系的置信度。结果显示,部分因果关系能有效生成可行的法律论证,例如若能确定某谋杀案中未发生身体袭击,则可确定该谋杀非因财产纠纷所致,置信度为1。因此,本研究证明因果发现算法在法律论证生成中具有潜力,为未来研究开辟新方向。
原文摘要 · Abstract (English)
In 2011, Judea Pearl received the Turing Award, considered the Nobel Prize in Computing, for fundamental contributions to artificial intelligence through the development of a calculus for probabilistic and causal reasoning. It includes pioneering the development of causal discovery algorithms. These computer algorithms can analyze large multivariate datasets and automatically discover the causal relationships among the constituent variables. They have been widely used in many critical fields such as medicine and economics to support decisions. However, to our knowledge, they have not been leveraged in law. This paper attempts to alleviate this gap by investigating whether causal discovery algorithms can be leveraged for automated generation of legal arguments. To that end, a novel legal dataset is prepared by identifying 17 legal concepts, such as physical assault and property dispute. A curated collection of 150 homicide cases are annotated with these concepts, e.g., a case is annotated with physical assault only if a physical assault had been reported in that case. Subsequently, a selected set of widely-used causal discovery algorithms is applied to the annotated dataset to discover the causal relationships between the legal concepts. Additionally, the degrees of belief associated with the discovered relationships are quantified in mathematical probabilities. It is shown that some of the causal relationships help generate viable legal arguments, e.g., if one could establish that a physical assault has not taken place during a homicide, it should be a sufficient condition (with probability 1) to establish that the homicide has not been committed due to a property-related dispute. Thus, this paper shows that causal discovery algorithms can be helpful in generating legal arguments, opening up avenues for promising future endeavors.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。