Methods for Computing Legal Document Similarity: A Comparative Study

04/26/2020
by   Paheli Bhattacharya, et al.
0

Computing similarity between two legal documents is an important and challenging task in the domain of Legal Information Retrieval. Finding similar legal documents has many applications in downstream tasks, including prior-case retrieval, recommendation of legal articles, and so on. Prior works have proposed two broad ways of measuring similarity between legal documents - analyzing the precedent citation network, and measuring similarity based on textual content similarity measures. But there has not been a comprehensive comparison of these existing methods on a common platform. In this paper, we perform the first systematic analysis of the existing methods. In addition, we explore two promising new similarity computation methods - one text-based and the other based on network embeddings, which have not been considered till now.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
07/07/2020

Hier-SPCNet: A Legal Statute Hierarchy-based Heterogeneous Network for Computing Legal Case Document Similarity

Computing similarity between two legal case documents is an important an...
research
07/25/2023

An Intent Taxonomy of Legal Case Retrieval

Legal case retrieval is a special Information Retrieval (IR) task focusi...
research
07/29/2023

Analysing the Resourcefulness of the Paragraph for Precedence Retrieval

Developing methods for extracting relevant legal information to aid lega...
research
04/12/2022

Neural Graph Matching for Modification Similarity Applied to Electronic Document Comparison

In this paper, we present a novel neural graph matching approach applied...
research
12/12/2022

Drivers of the decrease of patent similarities from 1976 to 2021

The citation network of patents citing prior art arises from the legal o...
research
07/19/2021

Unsupervised Identification of Relevant Prior Cases

Document retrieval has taken its role in almost all domains of knowledge...
research
01/27/2021

Measuring Law Over Time: A Network Analytical Framework with an Application to Statutes and Regulations in the United States and Germany

How do complex social systems evolve in the modern world? This question ...

Please sign up or login with your details

Forgot password? Click here to reset