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Browsing Lost Unformed Recollections: A Benchmark for Tip-of-the-Tongue Search and Reasoning

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arxiv 2503.19193 v1 pith:LIMG75N3 submitted 2025-03-24 cs.AI cs.CLcs.IRcs.MA

classification cs.AIcs.CLcs.IRcs.MA
keywords questionsreasoningassistantsbenchmarkbrowsinggenerallostrecollections
verification ladder T0 review T1 audit T2 compute T3 formal

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We introduce Browsing Lost Unformed Recollections, a tip-of-the-tongue known-item search and reasoning benchmark for general AI assistants. BLUR introduces a set of 573 real-world validated questions that demand searching and reasoning across multi-modal and multilingual inputs, as well as proficient tool use, in order to excel on. Humans easily ace these questions (scoring on average 98%), while the best-performing system scores around 56%. To facilitate progress toward addressing this challenging and aspirational use case for general AI assistants, we release 350 questions through a public leaderboard, retain the answers to 250 of them, and have the rest as a private test set.

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Cited by 1 Pith paper

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    cs.AI 2025-05 conditional novelty 7.0 of 10

    TRAIL provides a public benchmark of agent execution traces annotated with errors and shows that even the best LLM judges achieve only 11% joint accuracy at localizing them.

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