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Modern face recognition systems remain vulnerable to spoofing attempts, including both physical presentation attacks and digital forgeries. Traditionally, these two attack vectors have been handled by separate models, each targeting its own…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Andrei Balykin , Anvar Ganiev , Denis Kondranin , Kirill Polevoda , Nikolai Liudkevich , Artem Petrov

Federated learning (FL) is a collaborative machine learning approach that enables multiple clients to train models without sharing their private data. With the rise of deep learning, large-scale models have garnered significant attention…

机器学习 · 计算机科学 2025-09-09 Ziwei Zhan , Wenkuan Zhao , Yuanqing Li , Weijie Liu , Xiaoxi Zhang , Chee Wei Tan , Chuan Wu , Deke Guo , Xu Chen

The vulnerability of face recognition systems to morphing attacks has posed a serious security threat due to the wide adoption of face biometrics in the real world. Most existing morphing attack detection (MAD) methods require a large…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Na Zhang , Shan Jia , Siwei Lyu , Xin Li

Morphed face images have recently become a growing concern for existing face verification systems, as they are relatively easy to generate and can be used to impersonate someone's identity for various malicious purposes. Efficient Morphing…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Marija Ivanovska , Vitomir Štruc

We present a novel weighted average model based on the mixture of experts (MoE) concept to provide robustness in Federated learning (FL) against the poisoned/corrupted/outdated local models. These threats along with the non-IID nature of…

机器学习 · 计算机科学 2021-04-26 Saeedeh Parsaeefard , Sayed Ehsan Etesami , Alberto Leon Garcia

Face morphing attack detection is a challenging task. Automatic classification methods and manual inspection are realised in automatic border control gates to detect morphing attacks. Understanding how a machine learning system can detect…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Juan Tapia , Christoph Busch

Infrared and visible image fusion aims to integrate comprehensive information from multiple sources to achieve superior performances on various practical tasks, such as detection, over that of a single modality. However, most existing…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Yiming Sun , Bing Cao , Pengfei Zhu , Qinghua Hu

Face morphing attack detection (MAD) is one of the most challenging tasks in the field of face recognition nowadays. In this work, we introduce a novel deep learning strategy for a single image face morphing detection, which implies the…

计算机视觉与模式识别 · 计算机科学 2022-08-08 Iurii Medvedev , Farhad Shadmand , Nuno Gonçalves

Face morphing, a sophisticated presentation attack technique, poses significant security risks to face recognition systems. Traditional methods struggle to detect morphing attacks, which involve blending multiple face images to create a…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Iurii Medvedev , Joana Pimenta , Nuno Gonçalves

Visual attention has been extensively studied for learning fine-grained features in both facial expression recognition (FER) and Action Unit (AU) detection. A broad range of previous research has explored how to use attention modules to…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Xiaotian Li , Zhihua Li , Huiyuan Yang , Geran Zhao , Lijun Yin

With various face presentation attacks emerging continually, face anti-spoofing (FAS) approaches based on domain generalization (DG) have drawn growing attention. Existing DG-based FAS approaches always capture the domain-invariant features…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Ran Yi , Shouhong Ding , Lizhuang Ma

Face recognition systems are frequently subjected to a variety of physical and digital attacks of different types. Previous methods have achieved satisfactory performance in scenarios that address physical attacks and digital attacks,…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Xianhua He , Dashuang Liang , Song Yang , Zhanlong Hao , Hui Ma , Binjie Mao , Xi Li , Yao Wang , Pengfei Yan , Ajian Liu

Scaling large language models has driven remarkable advancements across various domains, yet the continual increase in model size presents significant challenges for real-world deployment. The Mixture of Experts (MoE) architecture offers a…

机器学习 · 计算机科学 2025-03-18 Shwai He , Daize Dong , Liang Ding , Ang Li

Mixture-of-Experts (MoE) has been gaining popularity due to its successful adaptation to large language models (LLMs). In this work, we introduce Privacy-preserving Collaborative Mixture-of-Experts (PC-MoE), which leverages the sparsity of…

机器学习 · 计算机科学 2025-06-05 Ze Yu Zhang , Bolin Ding , Bryan Kian Hsiang Low

Deep reinforcement learning (DRL) has successfully solved various problems recently, typically with a unimodal policy representation. However, grasping distinguishable skills for some tasks with non-unique optima can be essential for…

机器学习 · 计算机科学 2021-04-20 Jie Ren , Yewen Li , Zihan Ding , Wei Pan , Hao Dong

Intelligent fault-tolerant (FT) computing has recently demonstrated significant advantages in predicting and diagnosing faults proactively, thereby ensuring reliable service delivery. However, due to the heterogeneity of fault knowledge,…

机器学习 · 计算机科学 2025-12-15 Wenjing Xiao , Wenhao Song , Miaojiang Chen , Min Chen

Face Recognition Systems (FRS) are vulnerable to various attacks performed directly and indirectly. Among these attacks, face morphing attacks are highly potential in deceiving automatic FRS and human observers and indicate a severe…

计算机视觉与模式识别 · 计算机科学 2022-10-03 Jag Mohan Singh , Raghavendra Ramachandra

Contrastive Language-Image Pre-training (CLIP) has become a cornerstone in multimodal intelligence. However, recent studies discovered that CLIP can only encode one aspect of the feature space, leading to substantial information loss and…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Jihai Zhang , Xiaoye Qu , Tong Zhu , Yu Cheng

Face forgery detection is raising ever-increasing interest in computer vision since facial manipulation technologies cause serious worries. Though recent works have reached sound achievements, there are still unignorable problems: a)…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Jiaming Li , Hongtao Xie , Jiahong Li , Zhongyuan Wang , Yongdong Zhang

The non-intrusive nature and high accuracy of face recognition algorithms have led to their successful deployment across multiple applications ranging from border access to mobile unlocking and digital payments. However, their vulnerability…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Nilay Sanghvi , Sushant Kumar Singh , Akshay Agarwal , Mayank Vatsa , Richa Singh