Generating Legal Commentaries from Case Databases via Retrieval, Clustering, and Generation
We present a fully automated pipeline that transforms large collections of court decisions into legal commentaries for statutes - without providing any handcrafted doctrinal framework. Using 4.555 decisions of the German Federal Court of Justice that cite sections 242, 280, 812 and 823 of the German Civil Code (BGB), we extract paragraph-level chunks, summarize their reasoning, and derive keywords, which are embedded and clustered. For each cluster, an LLM generates headings and synthesizes citation-rich sections, which are then merged into coherent commentaries by four state-of-the-art LLMs. We evaluate along five dimensions - topical relevance, heading-match, citation faithfulness, clus...
| Authors | Max Prior, Niklas Wais, Matthias Grabmair |
|---|---|
| Primary category | cs.CL |
| Published | 23 May 2026 |
| Last updated at source | 25 September 2026 |
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