Mixed training of Qwen3-Embedding-4B on legal data plus SQuAD-pt yields higher average NDCG@10 (0.447), MRR@10 (0.595), and MAP@10 (0.308) across six Portuguese retrieval datasets than legal-only or base models, with largest gains on out-of-domain question-based search.
Artificial Intelligence and Law25(1), 65–87 (2017)
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Domain-Adaptive Dense Retrieval for Brazilian Legal Search
Mixed training of Qwen3-Embedding-4B on legal data plus SQuAD-pt yields higher average NDCG@10 (0.447), MRR@10 (0.595), and MAP@10 (0.308) across six Portuguese retrieval datasets than legal-only or base models, with largest gains on out-of-domain question-based search.