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B. Koopman

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Search, Inspect, Fetch: Exploiting Boolean Retrieval for Deep-Research Agents

This work introduces S IEVE, a search–inspect–fetch strategy built around a Boolean Query Language (BQL), which improves accuracy with every tested ranker, and the accuracy–context advantage persists across retriever choices and agent backbones.

Shuai Wang, Hao-Dong Chen, Yu Yin et al. · 0 citations
Preprint Aug 2026

How retriever redundancy and diversity impact RAG effectiveness

It is shown that duplicate redundancy and LLM paraphrasing does not significantly improve answer correctness, however, providing diverse documents is highly beneficial, improving answer correctness by 17%-47%.

Jonathan J. Ross, B. Koopman, A. H. van der Vegt et al. · 2 citations
Jul 2026

Reproducing LightMem: Naive RAG Is Just as Good for Memory Management

Overall, LightMem offers a context-efficiency trade-off rather than a general advantage over Naive RAG, whose value depends on the retriever and available token budget, motivating future work on retrieval, reranking, query formulation, and their interaction with raw and constructed memory representations.

Yong Zhou, Shuai Wang, B. Koopman et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Search, Inspect, Fetch: Exploiting Structure-Aware Boolean Retrieval for Deep-Search Agents

This work introduces Sieve, a search-inspect-fetch strategy driven by a Boolean Query Language (BQL): it searches webpage fields to filter candidates, uses an interchangeable ranker to order them, presents structure-rich result cards for inspection, and fetches only selected sections.

Shuai Wang, Hao-Dong Chen, Yu Yin et al. · 4 citations

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