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Recent advances in deep learning have led to the development of accurate and efficient models for various computer vision applications such as classification, segmentation, and detection. However, learning highly accurate models relies on…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Poojan Oza , Vishwanath A. Sindagi , Vibashan VS , Vishal M. Patel

Unsupervised Domain Adaptation (UDA) aims at improving the generalization capability of a model trained on a source domain to perform well on a target domain for which no labeled data is available. In this paper, we consider the semantic…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Teo Spadotto , Marco Toldo , Umberto Michieli , Pietro Zanuttigh

We introduce two criteria to regularize the optimization involved in learning a classifier in a domain where no annotated data are available, leveraging annotated data in a different domain, a problem known as unsupervised domain…

Computer Vision and Pattern Recognition · Computer Science 2020-04-13 Yanchao Yang , Dong Lao , Ganesh Sundaramoorthi , Stefano Soatto

An adversarial attack is an exploitative process in which minute alterations are made to natural inputs, causing the inputs to be misclassified by neural models. In the field of speech recognition, this has become an issue of increasing…

Sound · Computer Science 2018-09-13 Krishan Rajaratnam , Kunal Shah , Jugal Kalita

Domain adaptation is widely used in learning problems lacking labels. Recent studies show that deep adversarial domain adaptation models can make markable improvements in performance, which include symmetric and asymmetric architectures.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Guanyu Cai , Yuqin Wang , Mengchu Zhou , Lianghua He

The accuracy of deep learning (e.g., convolutional neural networks) for an image classification task critically relies on the amount of labeled training data. Aiming to solve an image classification task on a new domain that lacks labeled…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Xianghong Fang , Haoli Bai , Ziyi Guo , Bin Shen , Steven Hoi , Zenglin Xu

We apply adversarial domain adaptation in unsupervised setting to reduce sample bias in a supervised high energy physics events classifier training. We make use of a neural network containing event and domain classifier with a gradient…

Machine Learning · Statistics 2021-08-20 Jose M. Clavijo , Paul Glaysher , Judith M. Katzy , Jenia Jitsev

Training models dedicated to semantic segmentation requires a large amount of pixel-wise annotated data. Due to their costly nature, these annotations might not be available for the task at hand. To alleviate this problem, unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Fei Pan , Francois Rameau , Junsik Kim , In So Kweon

Monocular depth estimation is one of the fundamental tasks in environmental perception and has achieved tremendous progress in virtue of deep learning. However, the performance of trained models tends to degrade or deteriorate when employed…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Qiyu Sun , Gary G. Yen , Yang Tang , Chaoqiang Zhao

One fascinating aspect of pre-trained Audio-Language Models (ALMs) learning is their impressive zero-shot generalization capability and test-time adaptation (TTA) methods aiming to improve domain performance without annotations. However,…

Sound · Computer Science 2024-12-24 Gongyu Chen , Haomin Zhang , Chaofan Ding , Zihao Chen , Xinhan Di

Acoustic scene classification is an automatic listening problem that aims to assign an audio recording to a pre-defined scene based on its audio data. Over the years (and in past editions of the DCASE) this problem has often been solved…

This paper describes an acoustic scene classification method which achieved the 4th ranking result in the IEEE AASP challenge of Detection and Classification of Acoustic Scenes and Events 2016. In order to accomplish the ensuing task,…

Sound · Computer Science 2018-07-16 Sangwook Park , Seongkyu Mun , Younglo Lee , David K. Han , Hanseok Ko

We present the task description of the Detection and Classification of Acoustic Scenes and Events (DCASE) 2024 Challenge Task 2: First-shot unsupervised anomalous sound detection (ASD) for machine condition monitoring. Continuing from last…

In non-stationary environments, learning machines usually confront the domain adaptation scenario where the data distribution does change over time. Previous domain adaptation works have achieved great success in theory and practice.…

Machine Learning · Computer Science 2020-05-06 Zhongyi Han , Xian-Jin Gui , Chaoran Cui , Yilong Yin

Deep learning has become the method of choice to tackle real-world problems in different domains, partly because of its ability to learn from data and achieve impressive performance on a wide range of applications. However, its success…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Xiaofeng Liu , Chaehwa Yoo , Fangxu Xing , Hyejin Oh , Georges El Fakhri , Je-Won Kang , Jonghye Woo

Environmental audio tagging aims to predict only the presence or absence of certain acoustic events in the interested acoustic scene. In this paper we make contributions to audio tagging in two parts, respectively, acoustic modeling and…

Acoustic scene classification (ASC) and acoustic event detection (AED) are different but related tasks. Acoustic events can provide useful information for recognizing acoustic scenes. However, most of the datasets are provided without…

Sound · Computer Science 2020-10-27 Ruixiong Zhang , Wei Zou , Xiangang Li

Previous DCASE challenges contributed to an increase in the performance of acoustic scene classification systems. State-of-the-art classifiers demand significant processing capabilities and memory which is challenging for…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-10 Nagashree K. S. Rao , Nils Peters

Unsupervised domain adaptation techniques have been successful for a wide range of problems where supervised labels are limited. The task is to classify an unlabeled `target' dataset by leveraging a labeled `source' dataset that comes from…

Machine Learning · Computer Science 2018-07-10 Issam Laradji , Reza Babanezhad

In this study, we focus on the unsupervised domain adaptation problem where an approximate inference model is to be learned from a labeled data domain and expected to generalize well to an unlabeled data domain. The success of unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Jing Wang , Jiahong Chen , Jianzhe Lin , Leonid Sigal , Clarence W. de Silva