Author

Qingyao Wu

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Preprint Sep 2026

CoER: Defending against Adaptive Indirect Prompt Injection via Adversarial Co-Evolution and Refinement

Language-model agents are vulnerable to indirect prompt injection (IPI) during tool use: adversarial instructions hidden in untrusted tool outputs can covertly redirect legitimate task execution. Existing work often trains and evaluates defenses against fixed attacks that do not adapt to the defender's behavior, so the...

Bo-Yang Zhang, Qing-Xin Xiao, Lingwei Dang et al. · 2 citations

Aug 2026

CRFormer: Multi-scale contrastive regularization transformer for visible watermark removal.

This paper proposes CRFormer, a single-stage Transformer network for blind visible watermark removal that replaces the CNN backbone with a full Transformer to model watermark regions of arbitrary spatial extent and introduces a deformable convolution feed-forward network that restores spatial perception and integrates...

Yun Hao, Jiaju Wu, Rui Sun et al. · Neural Networks · 0 citations

Review Aug 2026

Roomer: Reflective Object-Grounded Model Editing and Repair for 3D Indoor Layout Synthesis

Roomer is presented, a reflective repair framework that casts local violations as sparse, object-grounded repair problems and repairs residual violations while preserving valid regions, improves physical validity and usability, and transfers across external generators.

Lingwei Dang, Ziyan Qiu, Jiajia Cheng et al. · 0 citations