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Multimodal Aspect-Based Sentiment Analysis (MABSA) combines text and images to perform sentiment analysis but often struggles with irrelevant or misleading visual information. Existing methodologies typically address either sentence-image…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Nguyen Van Doan , Dat Tran Nguyen , Cam-Van Thi Nguyen

The proliferation of highly realistic facial forgeries necessitates robust detection methods. However, existing approaches often suffer from limited accuracy and poor generalization due to significant distribution shifts among samples…

计算机视觉与模式识别 · 计算机科学 2026-02-19 Jingwei Li , Jiaxin Tong , Pengfei Wu

Deep learning-based automatic sleep staging has significantly advanced in performance and plays a crucial role in the diagnosis of sleep disorders. However, those models often struggle to generalize on unseen subjects due to variability in…

机器学习 · 计算机科学 2025-10-15 Sangmin Jo , Jee Seok Yoon , Wootaek Jeong , Kwanseok Oh , Heung-Il Suk

Vision-language foundation models like CLIP have shown impressive zero-shot generalization, but finetuning on downstream datasets can cause overfitting and loss of its generalization ability on unseen domains. Although collecting additional…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Siyuan Yan , Cheng Luo , Zhen Yu , Zongyuan Ge

Missing data is a significant problem impacting all domains. State-of-the-art framework for minimizing missing data bias is multiple imputation, for which the choice of an imputation model remains nontrivial. We propose a multiple…

机器学习 · 计算机科学 2018-02-20 Lovedeep Gondara , Ke Wang

Deep Learning (DL) is undergoing a paradigm shift with the emergence of foundation models. In this work, we focus on Contrastive Language-Image Pre-training (CLIP), a Vision-Language foundation model that achieves high accuracy across…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Angelos Zavras , Dimitrios Michail , Begüm Demir , Ioannis Papoutsis

Face anti-spoofing (FAS) and adversarial detection (FAD) have been regarded as critical technologies to ensure the safety of face recognition systems. However, due to limited practicality, complex deployment, and the additional…

计算机视觉与模式识别 · 计算机科学 2024-08-28 Jiawei Chen , Xiao Yang , Yinpeng Dong , Hang Su , Zhaoxia Yin

Data denoising is a persistent challenge across scientific and engineering domains. Real-world data is frequently corrupted by complex, non-linear noise, rendering traditional rule-based denoising methods inadequate. To overcome these…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Chang Nie , Tianchen Deng , Zhe Liu , Hesheng Wang

Multimodal learning seeks to integrate information across diverse sensory sources, yet current approaches struggle to balance cross-modal generalizability with modality-specific structure. Continuous (implicit) methods preserve fine-grained…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Souptik Sen , Raneen Younis , Zahra Ahmadi

Unsupervised domain adaptation (UDA) is vital for alleviating the workload of labeling 3D point cloud data and mitigating the absence of labels when facing a newly defined domain. Various methods of utilizing images to enhance the…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Jingyi Xu , Weidong Yang , Lingdong Kong , Youquan Liu , Rui Zhang , Qingyuan Zhou , Ben Fei

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from the presentation attacks (PAs). As more and more realistic PAs with novel types spring up, it is necessary to develop robust algorithms for detecting…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Zitong Yu , Xiaobai Li , Jingang Shi , Zhaoqiang Xia , Guoying Zhao

Recently, vision transformer based multimodal learning methods have been proposed to improve the robustness of face anti-spoofing (FAS) systems. However, multimodal face data collected from the real world is often imperfect due to missing…

计算机视觉与模式识别 · 计算机科学 2023-07-27 Zitong Yu , Rizhao Cai , Yawen Cui , Ajian Liu , Changsheng Chen

Face alignment, which fits a face model to an image and extracts the semantic meanings of facial pixels, has been an important topic in the computer vision community. However, most algorithms are designed for faces in small to medium poses…

计算机视觉与模式识别 · 计算机科学 2018-04-04 Xiangyu Zhu , Xiaoming Liu , Zhen Lei , Stan Z. Li

Despite the remarkable performance of vision language models (VLMs) such as Contrastive Language Image Pre-training (CLIP), the large size of these models is a considerable obstacle to their use in federated learning (FL) systems where the…

机器学习 · 计算机科学 2025-03-11 Yihang Wu , Ahmad Chaddad , Christian Desrosiers , Tareef Daqqaq , Reem Kateb

Face anti-spoofing (FAS) plays a vital role in preventing face recognition systems from presentation attacks. Existing face anti-spoofing datasets lack diversity due to the insufficient identity and insignificant variance, which limits the…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Hangtong Wu , Dan Zen , Yibo Hu , Hailin Shi , Tao Mei

We propose Domain-Conditioned Meta-Contrastive Learning, a framework for improving the cross-domain generalization of vision-language models. While contrastive models such as CLIP achieve strong performance through large-scale training,…

最优化与控制 · 数学 2026-03-31 Merham Fouladvand , Peuroly Batra

Domain shift poses a fundamental challenge in time series analysis, where models trained on source domain often fail dramatically when applied in target domain with different yet similar distributions. While current unsupervised domain…

机器学习 · 计算机科学 2025-08-07 Rongyao Cai , Ming Jin , Qingsong Wen , Kexin Zhang

This paper presents the first study on Unsupervised Domain Adaptation (UDA) for multimodal 3D panoptic segmentation (mm-3DPS), aiming to improve generalization under domain shifts commonly encountered in real-world autonomous driving. A…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Yining Pan , Shijie Li , Yuchen Wu , Xulei Yang , Na Zhao

Deep learning (DL) has been the primary approach used in various computer vision tasks due to its relevant results achieved on many tasks. However, on real-world scenarios with partially or no labeled data, DL methods are also prone to the…

We study source-free unsupervised domain adaptation (SFUDA) for semantic segmentation, which aims to adapt a source-trained model to the target domain without accessing the source data. Many works have been proposed to address this…

计算机视觉与模式识别 · 计算机科学 2024-06-12 Dong Zhao , Shuang Wang , Qi Zang , Licheng Jiao , Nicu Sebe , Zhun Zhong