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Semantic IDs are discrete identifiers generated by quantizing the Multi-modal Large Language Models (MLLMs) embeddings, enabling efficient multi-modal content integration in recommendation systems. However, their lack of collaborative…

Information Retrieval · Computer Science 2025-11-25 Wencai Ye , Mingjie Sun , Shaoyun Shi , Peng Wang , Wenjin Wu , Peng Jiang

The multi-agent reinforcement learning systems (MARL) based on the Markov decision process (MDP) have emerged in many critical applications. To improve the robustness/defense of MARL systems against adversarial attacks, the study of various…

Multiagent Systems · Computer Science 2024-02-01 Ziqing Lu , Guanlin Liu , Lifeng Lai , Weiyu Xu

Autonomous vehicles (AVs) face significant threats to their safe operation in complex traffic environments. Adversarial training has emerged as an effective method of enabling AVs to preemptively fortify their robustness against malicious…

Machine Learning · Computer Science 2024-09-23 Xuan Cai , Zhiyong Cui , Xuesong Bai , Ruimin Ke , Zhenshu Ma , Haiyang Yu , Yilong Ren

Multimodal Large Language Models (MLLMs) have achieved remarkable success in tasks such as image captioning, visual question answering, and cross-modal reasoning by integrating visual and textual modalities. However, their multimodal nature…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Fengling Zhu , Boshi Liu , Jingyu Hua , Sheng Zhong

Vision-Language (VL) pre-trained models have shown their superiority on many multimodal tasks. However, the adversarial robustness of such models has not been fully explored. Existing approaches mainly focus on exploring the adversarial…

Cryptography and Security · Computer Science 2024-02-07 Ziyi Yin , Muchao Ye , Tianrong Zhang , Tianyu Du , Jinguo Zhu , Han Liu , Jinghui Chen , Ting Wang , Fenglong Ma

Recent multi-modal face anti-spoofing (FAS) methods have investigated the potential of leveraging multiple modalities to distinguish live and spoof faces. However, pre-adapted multi-modal FAS models often fail to detect unseen attacks from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Ming-Tsung Hsu , Fang-Yu Hsu , Yi-Ting Lin , Kai-Heng Chien , Jun-Ren Chen , Cheng-Hsiang Su , Yi-Chen Ou , Chiou-Ting Hsu , Pei-Kai Huang

Browser agents are increasingly deployed in long-horizon tasks, which require executing extended action chains to accomplish user goals. However, this prolonged execution process provides attackers with more opportunities to inject…

Cryptography and Security · Computer Science 2026-05-12 Zhichao Liu , Wenbo Pan , Haining Yu , Ge Gao , Tianqing Zhu , Xiaohua Jia

The goal of video anomaly detection is tantamount to performing spatio-temporal localization of abnormal events in the video. The multiscale temporal dependencies, visual-semantic heterogeneity, and the scarcity of labeled data exhibited by…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Dezhi An , Wenqiang Liu , Kefan Wang , Zening Chen , Jun Lu , Shengcai Zhang

This paper presents a defense framework for enhancing the safety of large language model (LLM) empowered multi-agent systems (MAS) in safety-critical domains such as aerospace. We apply randomized smoothing, a statistical robustness…

Artificial Intelligence · Computer Science 2025-07-08 Jinwei Hu , Yi Dong , Zhengtao Ding , Xiaowei Huang

Recent advances in Vision-Language Models (VLMs) have propelled embodied agents by enabling direct perception, reasoning, and planning task-oriented actions from visual inputs. However, such vision-driven embodied agents open a new attack…

Artificial Intelligence · Computer Science 2026-02-24 Qiusi Zhan , Hyeonjeong Ha , Rui Yang , Sirui Xu , Hanyang Chen , Liang-Yan Gui , Yu-Xiong Wang , Huan Zhang , Heng Ji , Daniel Kang

Web agents have emerged as an effective paradigm for automating interactions with complex web environments, yet remain vulnerable to prompt injection attacks that embed malicious instructions into webpage content to induce unintended…

Cryptography and Security · Computer Science 2026-04-29 Mengyao Du , Han Fang , Haokai Ma , Jiahao Chen , Kai Xu , Quanjun Yin , Ee-Chien Chang

Despite the substantial advancements in Vision-Language Pre-training (VLP) models, their susceptibility to adversarial attacks poses a significant challenge. Existing work rarely studies the transferability of attacks on VLP models,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Jiyuan Fu , Zhaoyu Chen , Kaixun Jiang , Haijing Guo , Jiafeng Wang , Shuyong Gao , Wenqiang Zhang

Multi-agent distributed collaborative mapping provides comprehensive and efficient representations for robots. However, existing approaches lack instance-level awareness and semantic understanding of environments, limiting their…

Robotics · Computer Science 2025-09-03 Jianyu Dou , Yinan Deng , Jiahui Wang , Xingsi Tang , Yi Yang , Yufeng Yue

Although multimodal large language models (MLLMs) are increasingly deployed in real-world applications, their instruction-following behavior leaves them vulnerable to prompt injection attacks. Existing prompt injection methods predominantly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Meiwen Ding , Song Xia , Chenqi Kong , Xudong Jiang

This paper proposes a reliable learning-based adaptive control framework for nonlinear multi-agent systems (MASs) subject to Denial-of-Service (DoS) attacks and singular control gains, two critical challenges in cyber-physical systems. A…

Systems and Control · Electrical Eng. & Systems 2025-12-11 Ladan Khoshnevisan , Xinzhi Liu

Adversarial robustness evaluation faces a critical challenge as new defense paradigms emerge that can exploit limitations in existing assessment methods. This paper reveals that Dummy Classes-based defenses, which introduce an additional…

Machine Learning · Computer Science 2026-04-01 Yunrui Yu , Xuxiang Feng , Pengda Qin , Pengyang Wang , Kafeng Wang , Cheng-zhong Xu , Hang Su , Jun Zhu

In recent years, deep neural networks have demonstrated outstanding performance in many machine learning tasks. However, researchers have discovered that these state-of-the-art models are vulnerable to adversarial examples: legitimate…

Machine Learning · Computer Science 2018-10-10 Ting-Jui Chang , Yukun He , Peng Li

As adversarial attacks continue to evolve, defense models face the risk of recurrent vulnerabilities, underscoring the importance of continuous adversarial training (CAT). Existing CAT approaches typically balance decision boundaries by…

Cryptography and Security · Computer Science 2025-09-29 Wenxuan Wang , Chenglei Wang , Xuelin Qian

Social media has a significant impact on people's lives. Hate speech on social media has emerged as one of society's most serious issues in recent years. Text and pictures are two forms of multimodal data that are distributed within…

Computation and Language · Computer Science 2024-09-18 Anusha Chhabra , Dinesh Kumar Vishwakarma

As space becomes increasingly crowded and contested, robust autonomous capabilities for multi-agent environments are gaining critical importance. Current autonomous systems in space primarily rely on optimization-based path planning or…

Robotics · Computer Science 2026-04-21 Cameron Mehlman , Gregory Falco