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Author

H. V. Zhao

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#machine learning Preprint Sep 2026

Graph Learning with Spectral Connectivity Priors for Scarce Data

Learning a sparse graph from scarce data is practically important but challenging. Motivated by the desirable combination of local sparsity and strong global connectivity exhibited by expander-like graphs, we propose spectral connectivity-regularized graph learning (SCoGL), a framework that incorporates a family of Lap...

Ming-Xiao Liu, Bahar Oveisgharan, Bing-Yan Zou et al. · 0 citations

Blind Men and the Elephant: Probing the Epistemic Myopia of LLMs under Long-Tail Divergent Knowledge

Factual question answering (QA) typically assumes a single canonical answer, obscuring whether large language models (LLMs) retain divergent accounts of long-tail facts. To address this gap, we introduce ElephantBench, a closed-book knowledge probe comprising 1,094 questions generated through an auditable graph-based p...

Zhuo-Shi Pan, Jun-Ru Lu, Yan-Fei Qian et al. · 0 citations
#natural language process... Preprint Aug 2026

ContextPilot: Teaching Agents for Proactive Context Management via Fine-grained RL

An RL method tailored for context management is proposed, which uses context and entropy variation to identify critical editing decisions for branch sampling and estimates action-level advantages from all branched trajectories that pass through the corresponding context editing action.

Zhuo-Shi Pan, Qizhi Pei, Jun-Ru Lu et al. · 0 citations

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