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Jinkun Chen

2 accepted papers

2026

Unified Minimax Optimization Framework for Propensity Score Estimation in Debiased Recommendation

AAAI 2026technical

Recommendation systems commonly face selection bias from missing-not-at-random (MNAR) collected data. To address this bias, propensity-based methods such as inverse propensity scoring (IPS) and doubly robust (DR) estimators are widely used. In addition, many methods extend the vanilla IPS and DR to

Cited by 0SourcePDFScholar
2024

Long-form evaluation of model editing

NAACL 2024long

Evaluations of model editing, a technique for changing the factual knowledge held by Large Language Models (LLMs), currently only use the ‘next few token’ completions after a prompt. As a result, the impact of these methods on longer natural language generation is largely unknown. We introduce long-…