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News/Generated Query Expansion Still Helps Strong Sparse Retrieval: A Controlled Study with SPLADE-v3
arxiv
PublishedSeptember 30, 2026 at 4:00 AM

Generated Query Expansion Still Helps Strong Sparse Retrieval: A Controlled Study with SPLADE-v3

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arXiv:2609.37911v1 Announce Type: cross Abstract: Scientific queries are often brief, while relevant papers use specialized vocabulary. Generated query expansion can bridge this mismatch, but earlier work suggests that its value shrinks as the underlying retriever becomes stronger. We test the four

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