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Memory-augmented large language models extend reasoning beyond a fixed context window by maintaining long-term memory across interactions. However, existing memory systems often collapse stable user facts, episodic events, and behavioral…

Computation and Language · Computer Science 2026-05-28 Hyeonjeong Ha , Jeonghwan Kim , Cheng Qian , Jiayu Liu , William M. Campbell , Yue Wu , Yuji Zhang , Kathleen McKeown , Dilek Hakkani-Tur , Heng Ji

Accurate rejection of sensitive or harmful visual content, i.e., harmful image guardrail, is critical in many application scenarios. This task must continuously adapt to the evolving safety policies and content across various domains and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Caiyong Piao , Zhiyuan Yan , Haoming Xu , Yunzhen Zhao , Kaiqing Lin , Feiyang Xu , Shuigeng Zhou

Out-of-Distribution (OOD) detection is a critical task that has garnered significant attention. The emergence of CLIP has spurred extensive research into zero-shot OOD detection, often employing a training-free approach. Current methods…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Haoran Xu , Yanlin Liu , Zizhao Tong , Jiaze Li , Kexue Fu , Yuyang Zhang , Longxiang Gao , Shuaiguang Li , Xingyu Li , Yanran Xu , Changwei Wang

Text-to-3D generation approaches have advanced significantly by leveraging pretrained 2D diffusion priors, producing high-quality and 3D-consistent outputs. However, they often fail to produce out-of-domain (OOD) or rare concepts, yielding…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Yosef Dayani , Omer Benishu , Sagie Benaim

Large Vision-Language Models (VLMs) are susceptible to jailbreak attacks: researchers have developed a variety of attack strategies that can successfully bypass the safety mechanisms of VLMs. Among these approaches, jailbreak methods based…

Cryptography and Security · Computer Science 2025-11-12 Yuxuan Zhou , Yuzhao Peng , Yang Bai , Kuofeng Gao , Yihao Zhang , Yechao Zhang , Xun Chen , Tao Yu , Tao Dai , Shu-Tao Xia

Out-of-Distribution (OOD) detection, i.e., identifying whether an input is sampled from a novel distribution other than the training distribution, is a critical task for safely deploying machine learning systems in the open world. Recently,…

Machine Learning · Computer Science 2023-01-13 Feng Xue , Zi He , Chuanlong Xie , Falong Tan , Zhenguo Li

As Multimodal Large Language Models (MLLMs) become an indispensable assistant in human life, the unsafe content generated by MLLMs poses a danger to human behavior, perpetually overhanging human society like a sword of Damocles. To…

Computation and Language · Computer Science 2026-04-21 Xinyue Lou , Jinan Xu , Jingyi Yin , Xiaolong Wang , Zhaolu Kang , Youwei Liao , Yixuan Wang , Xiangyu Shi , Fengran Mo , Su Yao , Kaiyu Huang

To enhance the safety of VLMs, this paper introduces a novel reasoning-based VLM guard model dubbed GuardReasoner-VL. The core idea is to incentivize the guard model to deliberatively reason before making moderation decisions via online RL.…

Artificial Intelligence · Computer Science 2025-05-19 Yue Liu , Shengfang Zhai , Mingzhe Du , Yulin Chen , Tri Cao , Hongcheng Gao , Cheng Wang , Xinfeng Li , Kun Wang , Junfeng Fang , Jiaheng Zhang , Bryan Hooi

The rapid advancement of Diffusion Large Language Models (dLLMs) introduces unprecedented vulnerabilities that are fundamentally distinct from Autoregressive LLMs, stemming from their iterative and parallel generation mechanisms. In this…

Computation and Language · Computer Science 2026-03-27 Zherui Li , Zheng Nie , Zhenhong Zhou , Yue Liu , Yitong Zhang , Yu Cheng , Qingsong Wen , Kun Wang , Yufei Guo , Jiaheng Zhang

Accuracy and safety are paramount in Offshore Wind (OSW) maintenance, yet conventional Large Language Models (LLMs) often fail when confronted with highly specialised or unexpected scenarios. We introduce RAGuard, an enhanced…

Artificial Intelligence · Computer Science 2025-09-05 Connor Walker , Koorosh Aslansefat , Mohammad Naveed Akram , Yiannis Papadopoulos

Gradient-based meta-learning (GBML) algorithms are able to fast adapt to new tasks by transferring the learned meta-knowledge, while assuming that all tasks come from the same distribution (in-distribution, ID). However, in the real world,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Min Zhang , Zifeng Zhuang , Zhitao Wang , Donglin Wang , Wenbin Li

Improving out-of-distribution (OOD) generalization during in-distribution (ID) adaptation is a primary goal of robust fine-tuning of zero-shot models beyond naive fine-tuning. However, despite decent OOD generalization performance from…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Changdae Oh , Hyesu Lim , Mijoo Kim , Dongyoon Han , Sangdoo Yun , Jaegul Choo , Alexander Hauptmann , Zhi-Qi Cheng , Kyungwoo Song

The robustness and security of large language models (LLMs) has become a prominent research area. One notable vulnerability is the ability to bypass LLM safeguards by translating harmful queries into rare or underrepresented languages, a…

Computation and Language · Computer Science 2025-09-16 Hongliang Li , Jinan Xu , Gengping Cui , Changhao Guan , Fengran Mo , Kaiyu Huang

The rapid advancement of large language models (LLMs) has increased the need for guardrail models to ensure responsible use, particularly in detecting unsafe and illegal content. While substantial safety data exist in English, multilingual…

Computation and Language · Computer Science 2025-02-10 Yihe Deng , Yu Yang , Junkai Zhang , Wei Wang , Bo Li

Vision-Language Models (VLMs), such as CLIP, have demonstrated remarkable zero-shot out-of-distribution (OOD) detection capabilities, vital for reliable AI systems. Despite this promising capability, a comprehensive understanding of (1) why…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yuxiao Lee , Xiaofeng Cao , Wei Ye , Jiangchao Yao , Jingkuan Song , Heng Tao Shen

Safety moderation is pivotal for identifying harmful content. Despite the success of textual safety moderation, its multimodal counterparts remain hindered by a dual sparsity of data and supervision. Conventional reliance on binary labels…

Machine Learning · Computer Science 2026-02-04 Tianle Gu , Kexin Huang , Lingyu Li , Ruilin Luo , Shiyang Huang , Zongqi Wang , Yujiu Yang , Yan Teng , Yingchun Wang

The task of identifying out-of-domain (OOD) input examples directly at test-time has seen renewed interest recently due to increased real world deployment of models. In this work, we focus on OOD detection for natural language sentence…

Computation and Language · Computer Science 2020-01-01 Varun Gangal , Abhinav Arora , Arash Einolghozati , Sonal Gupta

Subset selection-based methods are widely used to explain deep vision models: they attribute predictions by highlighting the most influential image regions and support object-level explanations. While these methods perform well in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Madhav Gupta , Vishak Prasad C , Ganesh Ramakrishnan

We introduce Llama Guard 3 Vision, a multimodal LLM-based safeguard for human-AI conversations that involves image understanding: it can be used to safeguard content for both multimodal LLM inputs (prompt classification) and outputs…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Jianfeng Chi , Ujjwal Karn , Hongyuan Zhan , Eric Smith , Javier Rando , Yiming Zhang , Kate Plawiak , Zacharie Delpierre Coudert , Kartikeya Upasani , Mahesh Pasupuleti

Deep neural networks have shown outstanding performance in computer vision tasks such as semantic segmentation and have defined the state-of-the-art. However, these segmentation models are trained on a closed and predefined set of semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Samuel Marschall , Kira Maag