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Clustering artworks is difficult for several reasons. On the one hand, recognizing meaningful patterns in accordance with domain knowledge and visual perception is extremely difficult. On the other hand, applying traditional clustering and…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Giovanna Castellano , Gennaro Vessio

Class-imbalanced data, in which some classes contain far more samples than others, is ubiquitous in real-world applications. Standard techniques for handling class-imbalance usually work by training on a re-weighted loss or on re-balanced…

Artificial Intelligence · Computer Science 2021-06-18 Arpit Bansal , Micah Goldblum , Valeriia Cherepanova , Avi Schwarzschild , C. Bayan Bruss , Tom Goldstein

Deep clustering has shown its promising capability in joint representation learning and clustering via deep neural networks. Despite the significant progress, the existing deep clustering works mostly utilize some distribution-based…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Yuankun Xu , Dong Huang , Chang-Dong Wang , Jian-Huang Lai

Recently the deep learning has shown its advantage in representation learning and clustering for time series data. Despite the considerable progress, the existing deep time series clustering approaches mostly seek to train the deep neural…

Machine Learning · Computer Science 2023-01-02 Ying Zhong , Dong Huang , Chang-Dong Wang

Recognizing wild faces is extremely hard as they appear with all kinds of variations. Traditional methods either train with specifically annotated variation data from target domains, or by introducing unlabeled target variation data to…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Yichun Shi , Xiang Yu , Kihyuk Sohn , Manmohan Chandraker , Anil K. Jain

In real world datasets, particular groups are under-represented, much rarer than others, and machine learning classifiers will often preform worse on under-represented populations. This problem is aggravated across many domains where…

Machine Learning · Computer Science 2023-02-10 Arghya Datta , S. Joshua Swamidass

In this paper, a deep learning framework is proposed for automatic facial emotion based on deep convolutional networks. In order to increase the generalization ability and the robustness of the method, the dataset size is increased by…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Serap Kırbız

Facial pose estimation has gained a lot of attentions in many practical applications, such as human-robot interaction, gaze estimation and driver monitoring. Meanwhile, end-to-end deep learning-based facial pose estimation is becoming more…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Zhaoxiang Liu , Zezhou Chen , Jinqiang Bai , Shaohua Li , Shiguo Lian

Neural networks trained on real-world datasets with long-tailed label distributions are biased towards frequent classes and perform poorly on infrequent classes. The imbalance in the ratio of positive and negative samples for each class…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Kevin Duarte , Yogesh S. Rawat , Mubarak Shah

Multi-relational graph clustering has demonstrated remarkable success in uncovering underlying patterns in complex networks. Representative methods manage to align different views motivated by advances in contrastive learning. Our empirical…

Machine Learning · Computer Science 2024-07-25 Zhixiang Shen , Haolan He , Zhao Kang

The main requisite for fine-grained recognition task is to focus on subtle discriminative details that make the subordinate classes different from each other. We note that existing methods implicitly address this requirement and leave it to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Guolei Sun , Hisham Cholakkal , Salman Khan , Fahad Shahbaz Khan , Ling Shao

Training deep learning models on medical datasets that perform well for all classes is a challenging task. It is often the case that a suboptimal performance is obtained on some classes due to the natural class imbalance issue that comes…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Suraj Kothawade , Atharv Savarkar , Venkat Iyer , Lakshman Tamil , Ganesh Ramakrishnan , Rishabh Iyer

Face clustering plays an essential role in exploiting massive unlabeled face data. Recently, graph-based face clustering methods are getting popular for their satisfying performances. However, they usually suffer from excessive memory…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Junfu Liu , Di Qiu , Pengfei Yan , Xiaolin Wei

While deep face recognition has benefited significantly from large-scale labeled data, current research is focused on leveraging unlabeled data to further boost performance, reducing the cost of human annotation. Prior work has mostly been…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Aruni RoyChowdhury , Xiang Yu , Kihyuk Sohn , Erik Learned-Miller , Manmohan Chandraker

To address the trade-off problem of quality-diversity for the generated images in imbalanced classification tasks, we research on over-sampling based methods at the feature level instead of the data level and focus on searching the latent…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Yudi Zhao , Kuangrong Hao , Chaochen Gu , Bing Wei

Deep auto-encoders (DAEs) have achieved great success in learning data representations via the powerful representability of neural networks. But most DAEs only focus on the most dominant structures which are able to reconstruct the data…

Machine Learning · Computer Science 2020-07-14 Zhao Kang , Xiao Lu , Jian Liang , Kun Bai , Zenglin Xu

We propose a deep metric learning model to create embedded sub-spaces with a well defined structure. A new loss function that imposes Gaussian structures on the output space is introduced to create these sub-spaces thus shaping the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-07 Pedro D. Marrero Fernandez , Tsang Ing Ren , Tsang Ing Jyh , Fidel A. Guerrero Peña , Alexandre Cunha

Recently, a number of works have studied clustering strategies that combine classical clustering algorithms and deep learning methods. These approaches follow either a sequential way, where a deep representation is learned using a deep…

Machine Learning · Computer Science 2019-06-13 Severine Affeldt , Lazhar Labiod , Mohamed Nadif

Latent features learned by deep learning approaches have proven to be a powerful tool for machine learning. They serve as a data abstraction that makes learning easier by capturing regularities in data explicitly. Their benefits motivated…

Artificial Intelligence · Computer Science 2017-10-02 Sebastijan Dumančić , Hendrik Blockeel

Deep learning model trained by imbalanced data may not work satisfactorily since it could be determined by major classes and thus may ignore the classes with small amount of data. In this paper, we apply deep learning based imbalanced data…

Image and Video Processing · Electrical Eng. & Systems 2019-08-28 Ziqian Luo , Xiangrui Zeng , Zhipeng Bao , Min Xu