Free-Law-Project/opinions-metadata contains metadata for case law opinions used to train and evaluate the Free Law Project Semantic Search Project. The dataset was curated by the Free Law Project by randomly sampling approximately 1,000 cases across various courts and jurisdictions from the CourtListener database. It was last updated on March 7, 2025.
Use Cases
- Training semantic search models based on legal opinion metadata.
- Evaluating information retrieval systems for case law based on court and jurisdiction metadata.
- Analyzing the distribution of legal cases across different courts and jurisdictions.
Strengths
- Contains metadata for approximately 1,000 sampled cases.
- Sourced from the authoritative CourtListener database.
- Includes cases from various courts and jurisdictions, suggesting diversity.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- Free Law Project, via the CourtListener database.
- Collection Method
- Random sampling of cases from the CourtListener database.
- Freshness
- Last updated 2025-03-07 00:22:06.
- Geography
- United States (inferred from U.S. court system reference).