Exploring Lightweight Large Language Models for Court View Generation
A systematic study of lightweight (smaller than 2B) large language models for criminal court view generation and their impact on charge prediction. The paper investigates four key questions regarding model architecture, size, comparison with DNNs, and the effect of generating court views first. It also introduces CVGEvalKit, an evaluation framework with three datasets. Experiments provide insights into trade-offs and highlight the potential of lightweight LLMs in judicial AI.
[2605.16770] Exploring Lightweight Large Language Models for Court View Generation
[Submitted on 16 May 2026]
Title:Exploring Lightweight Large Language Models for Court View Generation
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Abstract:Criminal Court View Generation (CVG) is a critical task in Legal Artificial Intelligence (Legal AI), involving the generation of court view based on case facts. In this work, we systematically explore the capabilities of lightweight (smaller than 2B) large language models (LLMs) in CVG and their impact on charge prediction. Our study addresses four key questions: (1) how does different architecture of LLMs affect the CVG quality and charge prediction. (2) how does LLMs size contribute to the performance, (3) how do lightweight LLMs compare with Deep Neural Networks (DNNs) in these tasks, and (4) how does predicting charge by court view generation first compare with predicting it directly. Additionally, we also develop CVGEvalKit, an evaluation framework including three public available datasets for CVG tasks, as well as predicting their charges. Comprehensive experiments are conducted on this framework, where models are trained on a mixed training set and evaluated on each dataset's test set. Experimental results provide new insights into the trade-offs between model architecture, model size, and the influence between different tasks, highlighting the potential of lightweight LLMs in judicial AI applications. The source code is anonymously available at \url{this https URL}
Subjects:
Computation and Language (cs.CL); Artificial Intelligence (cs.AI)
Cite as: arXiv:2605.16770 [cs.CL]
(or arXiv:2605.16770v1 [cs.CL] for this version)
https://doi.org/10.48550/arXiv.2605.16770
arXiv-issued DOI via DataCite (pending registration)
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From: Zhitian Hou [view email] [v1] Sat, 16 May 2026 02:44:32 UTC (273 KB)
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