Author

Weijing Tang

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#artificial intelligence May 2026

First-Order Efficiency for Probabilistic Value Estimation via A Statistical Viewpoint

This work proposes an Efficiency-Aware Surrogate-adjusted Estimator (EASE) that directly chooses the sampling law and surrogate to minimize the leading mean squared error (MSE), and demonstrates that EASE consistently outperforms existing estimators for various probabilistic values.

Ziqi Liu, Kiljae Lee, Yuan Zhang et al. · arXiv.org · 1 citation

Preprint Aug 2026

LLM Evaluation on Unseen Questions: Contextual Multidimensional IRT Model

A model-based evaluation framework that combines multidimensional item response theory model with question contexts to predict LLM performance on unseen questions is studied, suggesting that context-aware psychometric modeling is a promising direction for efficient and interpretable LLM evaluation and highlighting cros...

Er-Gan Shang, Weijing Tang, Yinqiu He · 1 citation