Author

Yisheng Li

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#natural language process... Preprint Oct 2026

When Charts Deceive Web Agents: A Paired Benchmark for Misleading Visualization-Grounded Tasks

Web agents increasingly browse, interpret, and act on web content on behalf of users. In many realistic workflows, however, the visual evidence they consume is not neutral: charts and dashboards can be misleading, shaping judgments without issuing any explicit malicious instruction. Unlike chart question answering, Web...

Yi-Sheng Li, Dong-Ming Han, Hong-Kun Pan et al. · 0 citations

Preprint Aug 2026

PURPOSE: Poisoning Conflict Resolution in RAG via Proxy-Fact-Grounded Updates

PURPOSE is proposed, a strict black-box poisoning attack that reframes the injection as an update that minimizes conflict, rather than as a counter-claim, and identifies non-contradicting injection as a practical mode to enhance poisoning attack.

Zijian Wang, Yubo Zhu, M. Dong et al. · 0 citations