| Vol-3594 urn:nbn:de:0074-3594-2 Copyright © 2023 for the individual papers by the papers' authors. Copyright © 2023 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# LIRAI 2023
Legal Information Retrieval meets Artificial Intelligence 2023

### Proceedings of the 1st Legal Information Retrieval meets Artificial Intelligence Workshop LIRAI 2023
co-located with the 34th ACM Hypertext Conference HT 2023

### Rome, Italy, September 04, 2023.

Edited by

### Sabine Wehnert *,**
Manuel Fiorelli ***
Davide Picca ****
Ernesto William De Luca *,**
Armando Stellato ***

* Otto von Guericke University, Magdeburg, Germany
** Leibinz Institute for Educational Media | Georg Eckert Institute, Braunschweig, Germany
*** Tor Vergata University of Rome, Rome, Italy
**** University of Lausanne, Lausanne, Switzerland

## Table of Contents

### Overview paper

- Summary of the Workshop Legal Information Retrieval meets Artificial Intelligence (LIRAI 2023) 1-8
  Sabine Wehnert, Manuel Fiorelli, Davide Picca, Ernesto William De Luca, Armando Stellato
  Sumary: There were 8 papers submitted for peer-review to this workshop. Out of these, 6 papers were accepted for this volume, 3 as regular papers and 3 as short papers.

### Keynote

- Profiles of Knowledge Representation and Reasoning for Legal Information Retrieval and Compliance Checking 9
  Enrico Francesconi

### Contributed Papers

- Legal Extractive Summarization of U.S. Court Opinions 10-30
  Emmanuel Bauer, Dominik Stammbach, Nianlong Gu, Elliott Ash
- Enhancing Accessibility of Parliamentary Video Streams: AI-Based Automatic Indexing Using Verbatim Reports 31-40
  Daniele Bertillo, Andrea de Donato, Carlo Marchetti, Paolo Merialdo
- DeepKEA: Employing Deep Learning Models for Keyword Extraction from Patent Documents 41-46
  Rima Dessi, Hidir Aras, Lei Zhang
- Topic Similarities in Rights and Duties across European Constitutions using Transformer-based Language Models 47-62
  Candida M. Greco, Andrea Tagarelli
- GDPR Article Retrieval based on Domain-adaptive and Task-adaptive Legal Pre-trained Language Models 63-76
  Andrea Simeri, Andrea Tagarelli
- Mining Sentiment and Subjectivity in Swiss Case Law 77-90
  Sabine Wehnert, Davide Picca, Ernesto William De Luca

2023-12-12: submitted by Manuel Fiorelli, metadata incl. bibliographic data published under Creative Commons CC0
2023-12-15: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|