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New framework InterPol de-anonymizes LM Arena responses

A new research paper introduces InterPol, a framework designed to de-anonymize language model responses on leaderboards like LM Arena. Unlike previous methods that relied on simple statistical features, InterPol synthesizes interpolated preference data to capture deeper stylistic patterns. Experiments show InterPol significantly outperforms existing baselines in identification accuracy and demonstrates a real-world threat through ranking manipulation simulations. AI

IMPACT Highlights potential vulnerabilities in LLM leaderboards and the need for more robust anonymity measures.

RANK_REASON Research paper detailing a new method for de-anonymizing language model responses. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

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New framework InterPol de-anonymizes LM Arena responses

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Research paper detailing a new method for de-anonymizing language model responses. [lever_c_demoted from research: ic=1 ai=1.0]
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  1. arXiv cs.AI TIER_1 English(EN) · Minsung Cho, Jaehyung Kim ·

    InterPol: De-anonymizing LM Arena via Interpolated Preference Learning

    arXiv:2603.15220v3 Announce Type: replace Abstract: Strict anonymity of model responses is a key for the reliability of voting-based leaderboards, such as LM Arena. While prior studies have attempted to compromise this assumption using simple statistical features like TF-IDF or b…