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Author

Feiyu Xiong

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Preprint Sep 2026

TRACE: Governing Memory Validity in Evolving Multi-Agent Systems

Persistent memory lets language-model agents carry information across long-running collaborations, but leaves a lifecycle question open: what may a returning agent still act on once the shared state has changed? A memory can be correctly retrieved, relevant to the current task, and faithful to its source, and nonethele...

Wen-Jun Xiong, Shengtao Zhang, Shangding Gu et al. · 0 citations
Book Open access Aug 2026

GraTAG: Production AI Search via Graph-Based Query Decomposition and Triplet Aligned Generation with Rich Multimodal Representations

Traditional search engines struggle to synthesize fragmented information for complex queries, while generative AI search engines face challenges in relevance, comprehensiveness, and presentation. To address these limitations, we introduce Xinyu AI Search, a novel system that incorporates a query-decomposition graph to...

Bo Tang, Junyi Zhu, Ang Li et al. · 0 citations
Jul 2026

From Memory to Skills: Evidence-Grounded Co-Evolution Governance for Long-Horizon LLM Agents

This paper proposes MSCE, a training-free Memory--Skill Co-Evolution framework that organizes agent experience into grounded step traces, reusable procedural policies, and declarative environmental cognition, and introduces reflection-weighted value backfilling.

Bo Tang, Yang Zhang, Guomian Zhuang et al. · 1 citation
Jul 2026

MemOps: Benchmarking Lifecycle Memory Operations in Long-Horizon Conversations

It is argued that, in dynamic long-horizon interactions, memory is not a static collection of facts but a lifecycle of explicit operations, including remembering, forgetting, updating, reflecting, and their compositions, which reveal that current systems remain far from uniformly reliable.

Xixuan Hao, Zeyu Zhang, Zehao Lin et al. · 3 citations
Preprint Aug 2026

PHASE-Tree: Modeling Character-State Evolution in Long-Horizon Role-Playing Dialogue

To measure evolved-state generation, LongEvoRoleBench is introduced, which pairs four long-dialogue corpora for cross-episode evolution with four short-dialogue corpora as within-scene state-tracking checks, under a unified next-utterance protocol.

Bo Tang, Jia-Nan Yang, Junyi Zhu et al. · 1 citation

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