Search Results for author: Hannes Westermann

Found 13 papers, 2 papers with code

From Text to Structure: Using Large Language Models to Support the Development of Legal Expert Systems

1 code implementation1 Nov 2023 Samyar Janatian, Hannes Westermann, Jinzhe Tan, Jaromir Savelka, Karim Benyekhlef

We use LLMs to create pathways from legislation, according to the JusticeBot methodology for legal decision support systems, evaluate the pathways and compare them to manually created pathways.

Using Large Language Models to Support Thematic Analysis in Empirical Legal Studies

no code implementations28 Oct 2023 Jakub Drápal, Hannes Westermann, Jaromir Savelka

We propose a novel framework facilitating effective collaboration of a legal expert with a large language model (LLM) for generating initial codes (phase 2 of thematic analysis), searching for themes (phase 3), and classifying the data in terms of the themes (to kick-start phase 4).

Language Modelling Large Language Model +1

LLMediator: GPT-4 Assisted Online Dispute Resolution

no code implementations27 Jul 2023 Hannes Westermann, Jaromir Savelka, Karim Benyekhlef

In this article, we introduce LLMediator, an experimental platform designed to enhance online dispute resolution (ODR) by utilizing capabilities of state-of-the-art large language models (LLMs) such as GPT-4.

JusticeBot: A Methodology for Building Augmented Intelligence Tools for Laypeople to Increase Access to Justice

no code implementations27 Jul 2023 Hannes Westermann, Karim Benyekhlef

We also present an interface to build tools using this methodology and a case study of the first deployed JusticeBot version, focused on landlord-tenant disputes, which has been used by thousands of individuals.

Can GPT-4 Support Analysis of Textual Data in Tasks Requiring Highly Specialized Domain Expertise?

no code implementations24 Jun 2023 Jaromir Savelka, Kevin D. Ashley, Morgan A Gray, Hannes Westermann, Huihui Xu

We observed that, with a relatively minor decrease in performance, GPT-4 can perform batch predictions leading to significant cost reductions.

Explaining Legal Concepts with Augmented Large Language Models (GPT-4)

no code implementations15 Jun 2023 Jaromir Savelka, Kevin D. Ashley, Morgan A. Gray, Hannes Westermann, Huihui Xu

We compare the performance of a baseline setup, where GPT-4 is directly asked to explain a legal term, to an augmented approach, where a legal information retrieval module is used to provide relevant context to the model, in the form of sentences from case law.

Hallucination Information Retrieval +1

Toward an Intelligent Tutoring System for Argument Mining in Legal Texts

no code implementations24 Oct 2022 Hannes Westermann, Jaromir Savelka, Vern R. Walker, Kevin D. Ashley, Karim Benyekhlef

We propose an adaptive environment (CABINET) to support caselaw analysis (identifying key argument elements) based on a novel cognitive computing framework that carefully matches various machine learning (ML) capabilities to the proficiency of a user.

Argument Mining

Data-Centric Machine Learning in the Legal Domain

no code implementations17 Jan 2022 Hannes Westermann, Jaromir Savelka, Vern R. Walker, Kevin D. Ashley, Karim Benyekhlef

The results also indicate that enhancements to a data set could be considered, alongside the advancement of the ML models, as an additional path for increasing classification performance on various tasks in AI & Law.

BIG-bench Machine Learning

Sentence Embeddings and High-speed Similarity Search for Fast Computer Assisted Annotation of Legal Documents

no code implementations21 Dec 2021 Hannes Westermann, Jaromir Savelka, Vern R. Walker, Kevin D. Ashley, Karim Benyekhlef

We use this observation in allowing annotators to quickly view and annotate sentences that are semantically similar to a given sentence, across an entire corpus of documents.

Sentence Sentence Embeddings

Lex Rosetta: Transfer of Predictive Models Across Languages, Jurisdictions, and Legal Domains

1 code implementation15 Dec 2021 Jaromir Savelka, Hannes Westermann, Karim Benyekhlef, Charlotte S. Alexander, Jayla C. Grant, David Restrepo Amariles, Rajaa El Hamdani, Sébastien Meeùs, Michał Araszkiewicz, Kevin D. Ashley, Alexandra Ashley, Karl Branting, Mattia Falduti, Matthias Grabmair, Jakub Harašta, Tereza Novotná, Elizabeth Tippett, Shiwanni Johnson

In this paper, we examine the use of multi-lingual sentence embeddings to transfer predictive models for functional segmentation of adjudicatory decisions across jurisdictions, legal systems (common and civil law), languages, and domains (i. e. contexts).

Segmentation Sentence +1

Cross-Domain Generalization and Knowledge Transfer in Transformers Trained on Legal Data

no code implementations15 Dec 2021 Jaromir Savelka, Hannes Westermann, Karim Benyekhlef

We analyze the ability of pre-trained language models to transfer knowledge among datasets annotated with different type systems and to generalize beyond the domain and dataset they were trained on.

Domain Generalization Sentence +1

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