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Computers can understand and then engage with people in an emotionally intelligent way thanks to speech-emotion recognition (SER). However, the performance of SER in cross-corpus and real-world live data feed scenarios can be significantly…

Sound · Computer Science 2024-12-30 Thejan Rajapakshe , Rajib Rana , Sara Khalifa , Bjorn W. Schuller

Accurate sleep stage classification across datasets remains challenging due to variability in EEG channel montages, sampling rates, recording environments, and subject populations. Although deep learning has shown considerable promise for…

Machine Learning · Computer Science 2026-05-11 Unaza Tallal , Shruti Kshirsagar , Ankita Shukla

Domain adaptation (DA) aims to transfer discriminative features learned from source domain to target domain. Most of DA methods focus on enhancing feature transferability through domain-invariance learning. However, source-learned…

Machine Learning · Computer Science 2020-11-10 Jun Wen , Changjian Shui , Kun Kuang , Junsong Yuan , Zenan Huang , Zhefeng Gong , Nenggan Zheng

Partial Adaptation (PDA) addresses a practical scenario in which the target domain contains only a subset of classes in the source domain. While PDA should take into account both class-level and sample-level to mitigate negative transfer,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Youngeun Kim , Sungeun Hong , Seunghan Yang , Sungil Kang , Yunho Jeon , Jiwon Kim

Reconstruction error-based neural architectures constitute a classical deep learning approach to anomaly detection which has shown great performances. It consists in training an Autoencoder to reconstruct a set of examples deemed to…

Machine Learning · Computer Science 2024-06-06 Fabrizio Angiulli , Fabio Fassetti , Luca Ferragina

3D object detectors are fundamental components of perception systems in autonomous vehicles. While these detectors achieve remarkable performance on standard autonomous driving benchmarks, they often struggle to generalize across different…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Bartłomiej Olber , Jakub Winter , Paweł Wawrzyński , Andrii Gamalii , Daniel Górniak , Marcin Łojek , Robert Nowak , Krystian Radlak

Unsupervised anomaly detection (AD) is a major topic in the field of Cyber-Physical Production Systems (CPPSs). A closely related concern is dimensionality reduction (DR) which is: 1) often used as a preprocessing step in an AD solution, 2)…

Machine Learning · Computer Science 2020-10-29 Benedikt Eiteneuer , Nemanja Hranisavljevic , Oliver Niggemann

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

Domain adaptation (DA) mitigates the domain shift problem when transferring knowledge from one annotated domain to another similar but different unlabeled domain. However, existing models often utilize one of the ImageNet models as the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Youshan Zhang , Brian D. Davison

Anomaly detection aims to distinguish abnormal instances that deviate significantly from the majority of benign ones. As instances that appear in the real world are naturally connected and can be represented with graphs, graph neural…

Machine Learning · Computer Science 2023-05-24 Sheng Tian , Jihai Dong , Jintang Li , Wenlong Zhao , Xiaolong Xu , Baokun wang , Bowen Song , Changhua Meng , Tianyi Zhang , Liang Chen

Transfer learning aims to learn robust classifiers for the target domain by leveraging knowledge from a source domain. Since the source and the target domains are usually from different distributions, existing methods mainly focus on…

Machine Learning · Computer Science 2019-09-19 Jindong Wang , Yiqiang Chen , Wenjie Feng , Han Yu , Meiyu Huang , Qiang Yang

With the high requirements of automation in the era of Industry 4.0, anomaly detection plays an increasingly important role in higher safety and reliability in the production and manufacturing industry. Recently, autoencoders have been…

Machine Learning · Computer Science 2021-03-09 Yiwen Liao , Alexander Bartler , Bin Yang

Face Presentation Attack Detection (PAD) has drawn increasing attentions to secure the face recognition systems that are widely used in many applications. Conventional face anti-spoofing methods have been proposed, assuming that testing is…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Yomna Safaa El-Din , Mohamed N. Moustafa , Hani Mahdi

Due to the rare occurrence of anomalous events, a typical approach to anomaly detection is to train an autoencoder (AE) with normal data only so that it learns the patterns or representations of the normal training data. At test time, the…

Machine Learning · Computer Science 2024-05-20 Marcella Astrid , Muhammad Zaigham Zaheer , Djamila Aouada , Seung-Ik Lee

Time series anomaly detection plays a vital role in a wide range of applications. Existing methods require training one specific model for each dataset, which exhibits limited generalization capability across different target datasets,…

Machine Learning · Computer Science 2025-03-04 Qichao Shentu , Beibu Li , Kai Zhao , Yang Shu , Zhongwen Rao , Lujia Pan , Bin Yang , Chenjuan Guo

Partial Domain adaptation (PDA) aims to solve a more practical cross-domain learning problem that assumes target label space is a subset of source label space. However, the mismatched label space causes significant negative transfer. A…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Jian Hu , Hongya Tuo , Shizhao Zhang , Chao Wang , Haowen Zhong , Zhikang Zou , Zhongliang Jing , Henry Leung , Ruping Zou

Domain adaptive detection aims to improve the generality of a detector, learned from the labeled source domain, on the unlabeled target domain. In this work, drawing inspiration from the concept of stability from the control theory that a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Wenzhang Zhou , Heng Fan , Tiejian Luo , Libo Zhang

Anomaly detection (AD) is a critical task across domains such as cybersecurity and healthcare. In the unsupervised setting, an effective and theoretically-grounded principle is to train classifiers to distinguish normal data from…

Machine Learning · Statistics 2025-06-18 Matthew Lau , Tian-Yi Zhou , Xiangchi Yuan , Jizhou Chen , Wenke Lee , Xiaoming Huo

Unsupervised domain adaptation (UDA) has become increasingly prevalent in scene text recognition (STR), especially where training and testing data reside in different domains. The efficacy of existing UDA approaches tends to degrade when…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Kha Nhat Le , Hoang-Tuan Nguyen , Hung Tien Tran , Thanh Duc Ngo

Unsupervised Domain Adaptation (UDA) is an effective approach to tackle the issue of domain shift. Specifically, UDA methods try to align the source and target representations to improve the generalization on the target domain. Further, UDA…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Vibashan VS , Poojan Oza , Vishal M. Patel
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