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Dawei Yin

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#artificial intelligence Preprint Feb 2026

Not All Preferences Deserve Gradients: Understanding Gradient Utility in Offline Reasoning Alignment

SAGE (Stability-Aware Gradient Efficiency), which maintains difficulty-stratified candidate pools refreshed during training and selects pairs within each pool by a forward-pass signal-to-curvature score, outperforms full-data and size-matched baselines while producing substantially smoother optimization trajectories.

Hui Wu, Hengyi Cai, Jin-Man Zhao et al. · 0 citations
Jul 2026

DocOps: A Verifiable Benchmark for Autonomous Agents in Complex Document Operations

DocOps is introduced, a deterministically verifiable evaluation framework underpinned by a hierarchical taxonomy that deconstructs document operations inspired by real-world practices into atomic dimensions and escalating workflow complexities that exposes the capability boundaries of agents in maintaining global docum...

Jiazhen Jiang, Boxi Cao, Lingyong Yan et al. · 1 citation

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