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Papr retrieval system achieves 96.0% on LongMemEval-S benchmark

A user on r/MachineLearning shared results from the LongMemEval-S benchmark, achieving 96.0% accuracy using their Papr retrieval system. This performance surpasses other reported scores, including Chronos at 95.6% and Hindsight at 94.6%. The analysis indicated that retrieval recall is nearly saturated, with most errors originating from the reader component rather than retrieval itself. The system utilized the Papr-Embed 0.6B embedding model and Gemini Flash 2.5 reranker. AI

IMPACT Sets a new benchmark for long-context retrieval, potentially influencing future memory-augmented LLM development.

RANK_REASON The item reports on a new benchmark result and analysis of a retrieval system, which falls under research. [lever_c_demoted from research: ic=1 ai=1.0]

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Papr retrieval system achieves 96.0% on LongMemEval-S benchmark

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The item reports on a new benchmark result and analysis of a retrieval system, which falls under research. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. r/MachineLearning TIER_1 English(EN) · /u/remoteinspace ·

    LongMemEval-S: 96.0% with the official judge, and what top-5 vs top-20 retrieval changes [R]

    <!-- SC_OFF --><div class="md"><p>We ran all 500 LongMemEval-S questions through our memory retrieval (Papr) using the official answer prompt and the unmodified gpt-4o-2024-08-06 judge. Per-question answers and judge labels are public, so the official metrics script reproduces th…