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Image anomaly detection (IAD) is essential in applications such as industrial inspection, medical imaging, and security. Despite the progress achieved with deep learning models like Deep Semi-Supervised Anomaly Detection (DeepSAD), these…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 He Cheng , Depeng Xu , Shuhan Yuan

Deep learning models achieve remarkable accuracy in computer vision tasks, yet remain vulnerable to adversarial examples--carefully crafted perturbations to input images that can deceive these models into making confident but incorrect…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Khoi Nguyen Tiet Nguyen , Wenyu Zhang , Kangkang Lu , Yuhuan Wu , Xingjian Zheng , Hui Li Tan , Liangli Zhen

Text-to-image diffusion models can generate realistic images based on textual inputs, enabling users to convey their opinions visually through language. Meanwhile, within language, emotion plays a crucial role in expressing personal…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Tianyu Wei , Shanmin Pang , Qi Guo , Yizhuo Ma , Xiaofeng Cao , Qing Guo

Backdoor attacks targeting text-to-image diffusion models have advanced rapidly. However, current backdoor samples often exhibit two key abnormalities compared to benign samples: 1) Semantic Consistency, where backdoor prompts tend to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-25 Jie Zhang , Zhongqi Wang , Shiguang Shan , Xilin Chen

Deep neural networks (DNNs) have gain its popularity in various scenarios in recent years. However, its excellent ability of fitting complex functions also makes it vulnerable to backdoor attacks. Specifically, a backdoor can remain hidden…

Cryptography and Security · Computer Science 2023-05-18 Xinrui Liu , Yu-an Tan , Yajie Wang , Kefan Qiu , Yuanzhang Li

Multimodal learning involves developing models that can integrate information from various sources like images and texts. In this field, multimodal text generation is a crucial aspect that involves processing data from multiple modalities…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Youze Wang , Wenbo Hu , Richang Hong

We introduce a new attack paradigm that embeds hidden adversarial capabilities directly into diffusion models via fine-tuning, without altering their observable behavior or requiring modifications during inference. Unlike prior approaches…

Machine Learning · Computer Science 2025-04-15 Lucas Beerens , Desmond J. Higham

Backdoors implanted in pre-trained language models (PLMs) can be transferred to various downstream tasks, which exposes a severe security threat. However, most existing backdoor attacks against PLMs are un-targeted and task-specific. Few…

Computation and Language · Computer Science 2024-12-20 Wei Du , Peixuan Li , Boqun Li , Haodong Zhao , Gongshen Liu

Significant progress has been made in recent years in image captioning, an active topic in the fields of vision and language. However, existing methods tend to yield overly general captions and consist of some of the most frequent…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Jie Wu , Tianshui Chen , Hefeng Wu , Zhi Yang , Guangchun Luo , Liang Lin

In-context learning, a paradigm bridging the gap between pre-training and fine-tuning, has demonstrated high efficacy in several NLP tasks, especially in few-shot settings. Despite being widely applied, in-context learning is vulnerable to…

Computation and Language · Computer Science 2024-10-10 Shuai Zhao , Meihuizi Jia , Luu Anh Tuan , Fengjun Pan , Jinming Wen

Backdoor attacks pose an important security threat to textual large language models. Exploring textual backdoor attacks not only helps reveal the potential security risks of models, but also promotes innovation and development of defense…

Cryptography and Security · Computer Science 2025-07-21 Yang Hou , Qiuling Yue , Lujia Chai , Guozhao Liao , Wenbao Han , Wei Ou

Deep speech classification has achieved tremendous success and greatly promoted the emergence of many real-world applications. However, backdoor attacks present a new security threat to it, particularly with untrustworthy third-party…

Sound · Computer Science 2023-08-15 Zhe Ye , Terui Mao , Li Dong , Diqun Yan

This work presents an end-to-end trainable deep bidirectional LSTM (Long-Short Term Memory) model for image captioning. Our model builds on a deep convolutional neural network (CNN) and two separate LSTM networks. It is capable of learning…

Computer Vision and Pattern Recognition · Computer Science 2016-07-21 Cheng Wang , Haojin Yang , Christian Bartz , Christoph Meinel

Despite the remarkable progress of image captioning, existing captioners typically lack the controllable capability to generate desired image captions, e.g., describing the image in a rough or detailed manner, in a factual or emotional…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Ning Wang , Jiahao Xie , Jihao Wu , Mingbo Jia , Linlin Li

Deep learning has revolutionized numerous tasks within the computer vision field, including image classification, image segmentation, and object detection. However, the increasing deployment of deep learning models has exposed them to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Zeineb Dridi , Jihen Bennaceur , Amine Ben Hassouna

Large Vision-Language Models (LVLMs) are susceptible to typographic attacks, which are misclassifications caused by an attack text that is added to an image. In this paper, we introduce a multi-image setting for studying typographic…

Cryptography and Security · Computer Science 2025-02-13 Xiaomeng Wang , Zhengyu Zhao , Martha Larson

Given the power of vision transformers, a new learning paradigm, pre-training and then prompting, makes it more efficient and effective to address downstream visual recognition tasks. In this paper, we identify a novel security threat…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Sheng Yang , Jiawang Bai , Kuofeng Gao , Yong Yang , Yiming Li , Shu-tao Xia

Deep neural networks (DNNs) have been widely and successfully adopted and deployed in various applications of speech recognition. Recently, a few works revealed that these models are vulnerable to backdoor attacks, where the adversaries can…

Sound · Computer Science 2023-07-18 Hanbo Cai , Pengcheng Zhang , Hai Dong , Yan Xiao , Stefanos Koffas , Yiming Li

Image Captioning is a task that requires models to acquire a multi-modal understanding of the world and to express this understanding in natural language text. While the state-of-the-art for this task has rapidly improved in terms of n-gram…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Annika Lindh , Robert J. Ross , Abhijit Mahalunkar , Giancarlo Salton , John D. Kelleher

It is commonplace to produce application-specific models by fine-tuning large pre-trained models using a small bespoke dataset. The widespread availability of foundation model checkpoints on the web poses considerable risks, including the…

Cryptography and Security · Computer Science 2024-04-02 Yuxin Wen , Leo Marchyok , Sanghyun Hong , Jonas Geiping , Tom Goldstein , Nicholas Carlini