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Micro-Expression Recognition (MER) is a challenging task as the subtle changes occur over different action regions of a face. Changes in facial action regions are formed as Action Units (AUs), and AUs in micro-expressions can be seen as the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Ling Zhou , Qirong Mao , Ming Dong

Real-world fine-grained visual retrieval often requires discovering a rare concept from large unlabeled collections with minimal supervision. This is especially critical in biodiversity monitoring, ecological studies, and long-tailed visual…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Kawtar Zaher , Olivier Buisson , Alexis Joly

Given the similarity between facial expression categories, the presence of compound facial expressions, and the subjectivity of annotators, facial expression recognition (FER) datasets often suffer from ambiguity and noisy labels. Ambiguous…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Ziyang Zhang , Xiao Sun , Liuwei An , Meng Wang

In image classification, it is often expensive and time-consuming to acquire sufficient labels. To solve this problem, domain adaptation often provides an attractive option given a large amount of labeled data from a similar nature but…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Yongchun Zhu , Fuzhen Zhuang , Jindong Wang , Jingwu Chen , Zhiping Shi , Wenjuan Wu , Qing He

Composed image retrieval (CIR) searches a corpus with a reference image and a text describing how to modify it. Despite rapid progress from triplet-trained compositors to zero-shot and generative methods, essentially all systems share one…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Amsisan Tran , Baogh Le , Tuan Kiet Pham , Sui Yang Guang

Micro-expressions serve as essential cues for understanding individuals' genuine emotional states. Recognizing micro-expressions attracts increasing research attention due to its various applications in fields such as business negotiation…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Fengyuan Zhang , Zhaopei Huang , Xinjie Zhang , Qin Jin

Multimodal emotion recognition systems rely heavily on the full availability of modalities, suffering significant performance declines when modal data is incomplete. To tackle this issue, we present the Cross-Modal Alignment,…

Multimedia · Computer Science 2024-07-15 Haoqin Sun , Shiwan Zhao , Shaokai Li , Xiangyu Kong , Xuechen Wang , Aobo Kong , Jiaming Zhou , Yong Chen , Wenjia Zeng , Yong Qin

Deep learning models often achieve expert-level accuracy in medical image classification but suffer from a critical flaw: semantic incoherence. These high-confidence mistakes that are semantically incoherent (e.g., classifying a malignant…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Abolfazl Mohammadi-Seif , Ricardo Baeza-Yates

In this paper we propose an extension of the Attention Branch Network (ABN) by using instance segmentation for generating sharper attention maps for action recognition. Methods for visual explanation such as Grad-CAM usually generate blurry…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Tomoya Nitta , Tsubasa Hirakawa , Hironobu Fujiyoshi , Toru Tamaki

Precision and Recall are fundamental metrics in machine learning tasks where both accurate predictions and comprehensive coverage are essential, such as in multi-label learning, language generation, medical studies, and recommender systems.…

Machine Learning · Computer Science 2025-10-27 Lee Cohen , Yishay Mansour , Shay Moran , Han Shao

Weakly supervised referring expression grounding aims at localizing the referential object in an image according to the linguistic query, where the mapping between the referential object and query is unknown in the training stage. To…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Xuejing Liu , Liang Li , Shuhui Wang , Zheng-Jun Zha , Dechao Meng , Qingming Huang

The comparison of heterogeneous samples extensively exists in many applications, especially in the task of image classification. In this paper, we propose a simple but effective coupled neural network, called Deeply Coupled Autoencoder…

Computer Vision and Pattern Recognition · Computer Science 2014-02-11 Wen Wang , Zhen Cui , Hong Chang , Shiguang Shan , Xilin Chen

Video person re-identification attracts much attention in recent years. It aims to match image sequences of pedestrians from different camera views. Previous approaches usually improve this task from three aspects, including a) selecting…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Ruimao Zhang , Hongbin Sun , Jingyu Li , Yuying Ge , Liang Lin , Ping Luo , Xiaogang Wang

Several recent works show impressive results in mapping language-based human commands and image scene observations to direct robot executable policies (e.g., pick and place poses). However, these approaches do not consider the uncertainty…

Robotics · Computer Science 2022-11-16 Jelle Luijkx , Zlatan Ajanovic , Laura Ferranti , Jens Kober

Multimodal fake news detection has garnered significant attention due to its profound implications for social security. While existing approaches have contributed to understanding cross-modal consistency, they often fail to leverage…

Machine Learning · Computer Science 2025-05-30 Tianlin Zhang , En Yu , Yi Shao , Jiande Sun

Diagnosis of mild cognitive impairment (MCI) and subjective cognitive decline (SCD) from fMRI functional connectivity (FC) has gained popularity, but most FC-based diagnostic models are black boxes lacking casual reasoning so they…

Image and Video Processing · Electrical Eng. & Systems 2025-02-20 Xiongri Shen , Zhenxi Song , Zhiguo Zhang

Fine-grained action recognition is attracting increasing attention due to the emerging demand of specific action understanding in real-world applications, whereas the data of rare fine-grained categories is very limited. Therefore, we…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Jiahao Wang , Yunhong Wang , Sheng Liu , Annan Li

Neural networks, with powerful nonlinear mapping and classification capabilities, are widely applied in mechanical fault diagnosis to ensure safety. However, being typical black-box models, their application is limited in…

Machine Learning · Computer Science 2025-02-11 Qian Chen , Xingjian Dong , Zhike Peng

Performing machine learning with analog signals offers advantages in speed and energy efficiency, but sensitivity to component and measurement imperfections often foils training without a system-specific companion digital model. Here we…

Disordered Systems and Neural Networks · Physics 2026-03-18 Sam Dillavou , Marcelo Guzman , Andrea J. Liu , Douglas J. Durian

Multi-class classification annotations have significantly advanced AI applications, with truth inference serving as a critical technique for aggregating noisy and biased annotations. Existing state-of-the-art methods typically model each…

Machine Learning · Computer Science 2025-08-05 Ju Chen , Jun Feng , Shenyu Zhang