DeepAI AI Chat
Log In Sign Up

Aspect Classification for Legal Depositions

by   Saurabh Chakravarty, et al.
Virginia Polytechnic Institute and State University

Attorneys and others have a strong interest in having a digital library with suitable services (e.g., summarizing, searching, and browsing) to help them work with large corpora of legal depositions. Their needs often involve understanding the semantics of such documents. That depends in part on the role of the deponent, e.g., plaintiff, defendant, law enforcement personnel, expert, etc. In the case of tort litigation associated with property and casualty insurance claims, such as relating to an injury, it is important to know not only about liability, but also about events, accidents, physical conditions, and treatments. We hypothesize that a legal deposition consists of various aspects that are discussed as part of the deponent testimony. Accordingly, we developed an ontology of aspects in a legal deposition for accident and injury cases. Using that, we have developed a classifier that can identify portions of text for each of the aspects of interest. Doing so was complicated by the peculiarities of this genre, e.g., that deposition transcripts generally consist of data in the form of question-answer (QA) pairs. Accordingly, our automated system starts with pre-processing, and then transforms the QA pairs into a canonical form made up of declarative sentences. Classifying the declarative sentences that are generated, according to the aspect, can then help with downstream tasks such as summarization, segmentation, question-answering, and information retrieval. Our methods have achieved a classification F1 score of 0.83. Having the aspects classified with a good accuracy will help in choosing QA pairs that can be used as candidate summary sentences, and to generate an informative summary for legal professionals or insurance claim agents. Our methodology could be extended to legal depositions of other kinds, and to aid services like searching.


page 1

page 2

page 3

page 4


Expert Finding in Legal Community Question Answering

Expert finding has been well-studied in community question answering (QA...

Identifying Relationships Among Sentences in Court Case Transcripts Using Discourse Relations

Case Law has a significant impact on the proceedings of legal cases. The...

JNLP Team: Deep Learning for Legal Processing in COLIEE 2020

We propose deep learning based methods for automatic systems of legal re...

Semantic Norm Recognition and its application to Portuguese Law

Being able to clearly interpret legal texts and fully understanding our ...

Computer Assisted Access to Justice via Formal Jurisprudence Modeling

This paper discusses an internet-based system for enabling people to sel...