Yes, BM25 is a Strong Baseline for Legal Case Retrieval
arXiv:2105.05686v261 citationsHas Code
AI Analysis
This work demonstrates that a simple, existing method can be highly effective for legal professionals in case retrieval, though it is incremental.
The authors tackled legal case retrieval by applying a standard BM25 method to the COLIEE 2021 competition, achieving second place and outperforming the median of submissions.
We describe our single submission to task 1 of COLIEE 2021. Our vanilla BM25 got second place, well above the median of submissions. Code is available at https://github.com/neuralmind-ai/coliee.