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Qinggang Zhang

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#artificial intelligence Preprint Oct 2026

SkillPoison: Progressive Skill Poisoning via Successful Experiences

Self-improving LLM agents increasingly distill successful experiences into persistent, reusable skills. Existing skill attack methods corrupt this learning pipeline by injecting malicious triggers, behaviors, or false facts into individual experiences or extracted skills. However, such attacks are easily detected, and...

Li-Zhi Zhang, Xin He, Dian-Xuan Fu et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Memadapter: Counterfactual Adaptation Against Memory-induced Sycophancy

Long-term memory enables LLM-based agents to retain and reuse information across tasks and sessions, supporting personalization and long-horizon interactions. However, persistent memories can also induce sycophancy, causing agents to over-align with users'historical beliefs even when they are inaccurate, outdated, or i...

Ru-Qin Ning, Hai-Bo Meng, Zhi-Shang Xiang et al. · 0 citations
Book Open access Aug 2026

ReLU: Refined Chunk Embeddings Learning for Ultra-long SNP Genomic Prediction in Crop Breeding

Genomic prediction can accelerate crop breeding by predicting phenotypes from genome-wide SNP sequences. In practice, this task operates in a severe p \gg n regime, hundreds of thousands to millions of SNPs but only thousands of samples, making end-to-end deep learning prone to overfitting. Genomic foundation models he...

Hua-Chi Zhou, Jia-He Du, Yu-Jing Zhang et al. · 0 citations
#natural language process... Preprint Sep 2026

LA-CPD: Local-Evidence-Aware Change-Point Detection for Human-LLM Authorship Segmentation

LA-CPD is proposed, a structured method that transforms noisy sentence-level score sequences into coherent authorship segments and outperforms WCP+AIC, increasing sentence-level accuracy from 0.747 to 0.796 while improving boundary localization and LLM-span delineation.

Qing Yang, Zhen-Yun Mao, Zi-Xiang Luo et al. · 0 citations
#natural language process... Preprint Sep 2026

C-HAT-Bench: Benchmarking Chinese AI-Text Detection Beyond Fully Generated Text

Large Language Models (LLMs) increasingly participate in writing by modifying or extending human drafts, causing machine involvement to vary in both form and extent. Yet most Machine-Generated Text (MGT) detectors are evaluated only on fully human-written versus fully AI-generated text. Because human--AI collaboration...

Qing Yang, Zi-Xiang Luo, Zhen-Yun Mao et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Towards Reliable AI Data Scientists: Data Agents with Workflow Harnesses

This paper examines Data Agents from a harness-centric perspective, introducing a taxonomy of Data Agents and associated data environments, and identifying four open reliability problems: inactive semantic calibration, missing clarification, missing experience transfer, and the missing verification-repair repository.

Hua-Chi Zhou, Yu-Jing Zhang, Jia-He Du et al. · 0 citations
Preprint Aug 2026

Trajectory-Guided Forget-Recover Network for Continual LLM Unlearning

The Trajectory-guided Forget-Recover Network (TFR-Net) is proposed, which separates persistent target-related channels from transient hotspots and suppresses only the persistent ones, and achieves a more favorable trade-off between unlearning effectiveness and retained utility than representative baselines.

Ze-Zheng Wu, Xing-He Cheng, Qing-Gang Zhang et al. · 0 citations
Jul 2026

HVM-GraphRAG: Holistic-View Multimodal Graph Retrieval-Augmented Generation on Complex Document

HVM-GraphRAG uses a holistic view to guide graph construction, thereby reducing noisy and conflicting graph updates and building reliable indices between concept-level graph nodes and supporting multimodal chunks and enabling the answering model to better integrate heterogeneous evidence.

Xingbo He, Yi-Li Wang, Wenqi Fan et al. · 1 citation
Review Aug 2026

Graph Engineering in the Era of LLM Agents: From Individual Intelligence to System Intelligence

Graph Engineering is introduced, an emerging paradigm for next-generation agent systems that provides a unified foundation for organizing complex objectives, orchestrating heterogeneous agents, modeling system dynamics, and enabling scalable agent evolution.

Yu-Yuan Feng, Zhi-Shang Xiang, Chao Yang et al. · 5 citations
#artificial intelligence Preprint Aug 2026

CrossModalQA: A Cross-modal and Multi-hop Benchmark for Multimodal Retrieval-augmented Generation

CrossModalQA is introduced, an open-domain benchmark for evaluating multimodal retrieval and reasoning over heterogeneous corpora and it is revealed that complete cross-modal retrieval contributes more to answer accuracy than generator scaling, while multi-image retrieval and reasoning remain the primary bottlenecks li...

Jia-Cheng Cai, Zi-Jin Hong, Zheng Yuan et al. · 0 citations
Review Jul 2026

Zero-Mem: Zero-Token Memory Operations for LLM Agents

The results show that structured agent memory need not generate an intermediate representation of the past, and Zero-Mem achieves competitive performance while eliminating LLM calls and LLM-token consumption from memory operations.

Yi-Lin Xiao, Zhe-Han Zhu, Yujing Zhang et al. · 1 citation

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