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Wenjie Zhang

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#artificial intelligence Review Sep 2026

DynSTEER: Dynamic Stage-wise Trajectory Evaluation and Execution-time Review for Agents

Large language model agents are increasingly deployed for long-horizon task execution, raising a central granularity question for trajectory evaluation: whole-trajectory verification is too coarse to capture concrete failures and their associated evidence in long trajectories, while atomic-step scoring is too fine-grai...

Zhichao Shi, Xuhui Jiang, Wen-Jie Zhang et al. · 1 citation
Preprint Aug 2026

Calibrating Post-Training Feature Shifts for LLM Data Contamination Detection

Large language models (LLMs) are trained on massive and largely undisclosed corpora that may contain copyrighted or privacy-sensitive content. Data contamination detection (DCD) therefore aims to determine whether a given text is a member of the pre-training corpus of a target LLM. Recent state-of-the-art DCD methods f...

Zhen Yang, Mengqi Wang, Gengda Zhao et al. · 0 citations
Preprint Aug 2026

SkillZip: Contract-Preserving Graph Compression for Scalable Agent Skill Libraries

SkillZip is proposed, an execution-aware procedural abstraction framework that performs contract-preserving compression over section-level graphs that hydrates a compact, dependency-closed context and expands macros only when required.

Xingyu Tan, Xiaoyang Wang, Qing Liu et al. · 2 citations
Preprint Aug 2026

RippleMem: From Isolated Retrieval to Associative Recollection for Long-Term Agent Memory

RippleMem is a long-term memory system that replaces one-shot retrieval with adaptive associative recollection, Inspired by cue-dependent episodic retrieval and associative completion, that stores interaction history as cue-rich episodic memory units and organizes them in an event-centric memory graph.

Jingbo Ji, Lingyi Li, Xi-Long Cheng et al. · 2 citations
Preprint Jul 2026

HyperAgent: Planning and Acting over Tool-Schema Hypergraphs for Tool-Use LLM Agents

This work builds a directed Tool--Schema Hypergraph, in which tools are represented as hyperedges from their required input-schema nodes to their output-schema nodes, and proposes HyperAgent, a Tool--Schema Hypergraph-guided framework for dynamic planning and execution.

Zian Zhai, Xingyu Tan, Gaowang Zou et al. · 0 citations

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