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Wei-Chieh Huang

University of Illinois Chicago

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#machine learning Preprint Sep 2026

EAVer: Long-Form Factuality Verification as an End-to-End Agentic Policy

This work introduces EAVer, an End-to-end Agentic Verifier that learns to control the complete response-level verification workflow as a unified policy, and construct 794 bidirectional same-trajectory preference pairs that keep claim grouping, search, and evidence fixed, enabling decision-focused Direct Preference Opti...

Ke-Ning Zheng, Ao-Ying Zheng, Zhi-Gang Chang et al. · 0 citations
Preprint Aug 2026

XBridge: Entity-Grounded Latent Bridge for Heterogeneous LLM Communication

XBRIDGE is proposed, a decode-free communication protocol that outperforms text-based communication on all seven tasks for each model pair while achieving 11x lower latency, and in a same-architecture setting it also exceeds a KV-sharing baseline on six of seven tasks.

Wooseong Yang, Wei-Chieh Huang, Wei-Zhi Zhang et al. · 3 citations
#natural language process... Preprint Jun 2026

MemAudit: Auditing Long-Term Agent Memory via Hidden User-State Recovery

MEMPROBE is the first benchmark to study memory recovery directly, reconstructing the user state a system retains and scoring it against ground truth, and is seen as a step toward an environment where agents are trained to remember their users, growing more faithful the longer they know them.

En-Ze Ma, Yufan Zhou, Wei-Chieh Huang et al. · 4 citations

Unveiling Language Routing Isolation in Multilingual MoE Models for Interpretable Subnetwork Adaptation

A systematic analysis of expert routing patterns in MoE models reveals Language Routing Isolation, in which high- and low-resource languages tend to activate largely disjoint expert sets, and proposes RISE, a framework that exploits routing isolation to identify and adapt language-specific expert subnetworks.

Kening Zheng, Wei-Chieh Huang, Jiahao Huo et al. · 4 citations · ⚡2
Preprint Aug 2026

Harness the Memory: A Holistic Evaluation of Memory Substrates in Memory Agents

A controlled harness evaluation of memory substrates for memory-augmented agents, covering dense and sparse indices, text records, structural stores, hierarchical stores, refinement-based memories, parametric updates, and activation-compatible context mechanisms, shows that no single substrate consistently dominates.

Wei-Chieh Huang, Wei-Zhi Zhang, Yu-Chen Wu et al. · 2 citations
Preprint Aug 2026

HyperSkill: Self-Evolving LLM Agents via Hypergraph-Structured Skill Memory

This work proposes HyperSkill, a hypergraph-based memory framework that jointly improves what to store, how memory is structured and retrieved, and how memory evolves, and represents memory as a hypergraph with two node types, subtask steps and reusable skills.

Ruiyao Xu, Tiankai Yang, Wei-Chieh Huang · 5 citations

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