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Deep neural networks are found to be vulnerable to adversarial perturbations. The prompt-based defense has been increasingly studied due to its high efficiency. However, existing prompt-based defenses mainly exploited mixed prompt patterns,…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Yibo Xu , Dawei Zhou , Decheng Liu , Nannan Wang

Deep supervised hashing has emerged as an influential solution to large-scale semantic image retrieval problems in computer vision. In the light of recent progress, convolutional neural network based hashing methods typically seek pair-wise…

计算机视觉与模式识别 · 计算机科学 2018-03-13 Xuefei Zhe , Shifeng Chen , Hong Yan

Motivated by a recent new type of randomized Distributed Denial of Service (DDoS) attacks on the Domain Name Service (DNS), we develop novel and efficient distinct heavy hitters algorithms and build an attack identification system that uses…

密码学与安全 · 计算机科学 2016-12-09 Yehuda Afek , Anat Bremler-Barr , Edith Cohen , Shir Landau Feibish , Michal Shagam

Diffusion-based generative models have become dominant generators of high-fidelity images and videos but remain limited by their computationally expensive inference procedures. Existing acceleration techniques either require extensive model…

机器学习 · 计算机科学 2025-07-22 Jiaqi Han , Haotian Ye , Puheng Li , Minkai Xu , James Zou , Stefano Ermon

Text-to-image diffusion models (T2I DMs) have achieved remarkable success in generating high-quality and diverse images from text prompts, yet recent studies have revealed their vulnerability to backdoor attacks. Existing attack methods…

密码学与安全 · 计算机科学 2025-08-05 Haoran Dai , Jiawen Wang , Ruo Yang , Manali Sharma , Zhonghao Liao , Yuan Hong , Binghui Wang

Active learning enables the efficient construction of a labeled dataset by labeling informative samples from an unlabeled dataset. In a real-world active learning scenario, considering the diversity of the selected samples is crucial…

机器学习 · 计算机科学 2022-07-15 Yeachan Kim , Bonggun Shin

In recent years, diffusion models have achieved remarkable success in the realm of high-quality image generation, garnering increased attention. This surge in interest is paralleled by a growing concern over the security threats associated…

机器学习 · 计算机科学 2024-06-04 Sen Li , Junchi Ma , Minhao Cheng

As edge computing and the Internet of Things (IoT) expand, horizontal collaboration (HC) emerges as a distributed data processing solution for resource-constrained devices. In particular, a convolutional neural network (CNN) model can be…

密码学与安全 · 计算机科学 2024-09-27 Muneeba Asif , Mohammad Kumail Kazmi , Mohammad Ashiqur Rahman , Syed Rafay Hasan , Soamar Homsi

In this study, we explore the efficiency of the Monte Carlo Tree Search (MCTS), a prominent decision-making algorithm renowned for its effectiveness in complex decision environments, contingent upon the volume of simulations conducted.…

人工智能 · 计算机科学 2024-03-19 Ye Zhang , Mengran Zhu , Kailin Gui , Jiayue Yu , Yong Hao , Haozhan Sun

Deep neural networks (DNNs) offer significant promise for improving breast cancer diagnosis in medical imaging. However, these models are highly susceptible to adversarial attacks--small, imperceptible changes that can mislead…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Yasamin Medghalchi , Moein Heidari , Clayton Allard , Leonid Sigal , Ilker Hacihaliloglu

Constrained policy search (CPS) is a fundamental problem in offline reinforcement learning, which is generally solved by advantage weighted regression (AWR). However, previous methods may still encounter out-of-distribution actions due to…

机器学习 · 计算机科学 2024-02-29 Longxiang He , Li Shen , Linrui Zhang , Junbo Tan , Xueqian Wang

We present SLASH (Sketched LocAlity Sensitive Hashing), an MPI (Message Passing Interface) based distributed system for approximate similarity search over terabyte scale datasets. SLASH provides a multi-node implementation of the popular…

数据库 · 计算机科学 2020-08-19 Nicholas Meisburger , Anshumali Shrivastava

Diffusion models (DMs) have demonstrated great potential in the field of adversarial robustness, where DM-based defense methods can achieve superior defense capability without adversarial training. However, they all require huge…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Hefei Mei , Minjing Dong , Chang Xu

High-dimensional design spaces underpin a wide range of physics-based modeling and computational design tasks in science and engineering. These problems are commonly formulated as constrained black-box searches over rugged objective…

Diffusion models have significantly advanced text-to-image generation, enabling the creation of highly realistic images conditioned on textual prompts and seeds. Given the considerable intellectual and economic value embedded in such…

密码学与安全 · 计算机科学 2025-09-12 Felix Mächtle , Ashwath Shetty , Jonas Sander , Nils Loose , Sören Pirk , Thomas Eisenbarth

Cyber-physical systems (CPSs) in critical infrastructure face a pervasive threat from attackers, motivating research into a variety of countermeasures for securing them. Assessing the effectiveness of these countermeasures is challenging,…

软件工程 · 计算机科学 2020-07-17 Yuqi Chen , Bohan Xuan , Christopher M. Poskitt , Jun Sun , Fan Zhang

Monte-Carlo Tree Search (MCTS) is a fundamental sampling-based search algorithm widely used for online planning in sequential decision-making domains. Despite its success in driving recent advances in artificial intelligence, understanding…

人工智能 · 计算机科学 2026-04-17 Yiyu Qian , Liyuan Zhao , Tim Miller

Adversarial text attack research plays a crucial role in evaluating the robustness of NLP models. However, the increasing complexity of transformer-based architectures has dramatically raised the computational cost of attack testing,…

计算与语言 · 计算机科学 2025-09-26 Abhinay Shankar Belde , Rohit Ramkumar , Jonathan Rusert

Machine unlearning aims to remove specific concepts from pretrained text-to-image diffusion models, yet several white- and black-box attacks have been introduced to make the model generate such unlearned concepts. These attacks,…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Arian Komaei Koma , Seyed Amir Kasaei , AmirMahdi Sadeghzadeh , Mohammad Hossein Rohban

Adapting CLIP to vertical domains is typically approached by novel fine-tuning strategies or by continual pre-training (CPT) on large domain-specific datasets. Yet, data itself remains an underexplored factor in this process. We revisit…