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Medical image analysis using supervised deep learning methods remains problematic because of the reliance of deep learning methods on large amounts of labelled training data. Although medical imaging data repositories continue to expand…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Euijoon Ahn , Ashnil Kumar , Dagan Feng , Michael Fulham , Jinman Kim

Current multilingual vision-language models either require a large number of additional parameters for each supported language, or suffer performance degradation as languages are added. In this paper, we propose a Scalable Multilingual…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Andrea Burns , Donghyun Kim , Derry Wijaya , Kate Saenko , Bryan A. Plummer

Image clustering, which involves grouping images into different clusters without labels, is a key task in unsupervised learning. Although previous deep clustering methods have achieved remarkable results, they only explore the intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Haixin Zhang , Yongjun Li , Dong Huang

Existing approaches focus on using class-level features to improve semantic segmentation performance. How to characterize the relationships of intra-class pixels and inter-class pixels is the key to extract the discriminative representative…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Jianjian Yin , Zhichao Zheng , Yanhui Gu , Junsheng Zhou , Yi Chen

This paper presents Contrastive Reconstruction, ConRec - a self-supervised learning algorithm that obtains image representations by jointly optimizing a contrastive and a self-reconstruction loss. We showcase that state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Jonas Dippel , Steffen Vogler , Johannes Höhne

The significant amount of training data required for training Convolutional Neural Networks has become a bottleneck for applications like semantic segmentation. Few-shot semantic segmentation algorithms address this problem, with an aim to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-16 Ayyappa Kumar Pambala , Titir Dutta , Soma Biswas

In this paper, we introduce MultiviewVLM, a vision-language model designed for unsupervised contrastive multiview representation learning of facial emotions from 3D/4D data. Our architecture integrates pseudo-labels derived from generated…

Computer Vision and Pattern Recognition · Computer Science 2025-05-15 Muzammil Behzad

Despite the broad application of deep reinforcement learning (RL), transferring and adapting the policy to unseen but similar environments is still a significant challenge. Recently, the language-conditioned policy is proposed to facilitate…

Machine Learning · Computer Science 2023-03-10 Shaohui Peng , Xing Hu , Rui Zhang , Jiaming Guo , Qi Yi , Ruizhi Chen , Zidong Du , Ling Li , Qi Guo , Yunji Chen

Sentence Representation Learning (SRL) is a fundamental task in Natural Language Processing (NLP), with the Contrastive Learning of Sentence Embeddings (CSE) being the mainstream technique due to its superior performance. An intriguing…

Computation and Language · Computer Science 2023-12-20 Mingxin Li , Richong Zhang , Zhijie Nie , Yongyi Mao

Because implicit user feedback for the collaborative filtering (CF) models is biased toward popular items, CF models tend to yield recommendation lists with popularity bias. Previous studies have utilized inverse propensity weighting (IPW)…

Information Retrieval · Computer Science 2023-05-23 Jae-woong Lee , Seongmin Park , Mincheol Yoon , Jongwuk Lee

Magnetic Resonance (MR) images suffer from various types of artifacts due to motion, spatial resolution, and under-sampling. Conventional deep learning methods deal with removing a specific type of artifact, leading to separately trained…

Image and Video Processing · Electrical Eng. & Systems 2023-04-14 Arun Palla , Sriprabha Ramanarayanan , Keerthi Ram , Mohanasankar Sivaprakasam

Unsupervised representation learning (URL), which learns compact embeddings of high-dimensional data without supervision, has made remarkable progress recently. However, the development of URLs for different requirements is independent,…

Machine Learning · Computer Science 2024-04-18 Siyuan Li , Zicheng Liu , Zelin Zang , Di Wu , Zhiyuan Chen , Stan Z. Li

While self-supervised learning has been shown to benefit a number of vision tasks, existing techniques mainly focus on image-level manipulation, which may not generalize well to downstream tasks at patch or pixel levels. Moreover, existing…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Cheng-Yen Hsieh , Chih-Jung Chang , Fu-En Yang , Yu-Chiang Frank Wang

Disentangled representation has been widely explored in many fields due to its maximal compactness, interpretability and versatility. Recommendation system also needs disentanglement to make representation more explainable and general for…

Social and Information Networks · Computer Science 2020-10-27 Weiguang Chen , Wenjun Jiang , Xueqi Li , Kenli Li , Albert Zomaya , Guojun Wang

Existing Unbiased Scene Graph Generation (USGG) methods only focus on addressing the predicate-level imbalance that high-frequency classes dominate predictions of rare ones, while overlooking the concept-level imbalance. Actually, even if…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Xinyu Lyu , Lianli Gao , Junlin Xie , Pengpeng Zeng , Yulu Tian , Jie Shao , Heng Tao Shen

Existed pre-training methods either focus on single-modal tasks or multi-modal tasks, and cannot effectively adapt to each other. They can only utilize single-modal data (i.e. text or image) or limited multi-modal data (i.e. image-text…

Computation and Language · Computer Science 2022-03-15 Wei Li , Can Gao , Guocheng Niu , Xinyan Xiao , Hao Liu , Jiachen Liu , Hua Wu , Haifeng Wang

Multi-view learning is a learning problem that utilizes the various representations of an object to mine valuable knowledge and improve the performance of learning algorithm, and one of the significant directions of multi-view learning is…

Machine Learning · Computer Science 2022-01-11 Run-kun Lu , Jian-wei Liu , Yuan-fang Wang , Hao-jie Xie , Xin Zuo

While neural networks for learning representation of multi-view data have been previously proposed as one of the state-of-the-art multi-view dimension reduction techniques, how to make the representation discriminative with only a small…

Machine Learning · Computer Science 2018-11-13 Vahid Noroozi , Sara Bahaadini , Lei Zheng , Sihong Xie , Weixiang Shao , Philip S. Yu

In recent times, the field of unsupervised representation learning (URL) for time series data has garnered significant interest due to its remarkable adaptability across diverse downstream applications. Unsupervised learning goals differ…

Machine Learning · Computer Science 2025-05-12 Chen Liang , Donghua Yang , Zhiyu Liang , Hongzhi Wang , Zheng Liang , Xiyang Zhang , Jianfeng Huang

Skeleton-based action recognition is widely used in varied areas, e.g., surveillance and human-machine interaction. Existing models are mainly learned in a supervised manner, thus heavily depending on large-scale labeled data which could be…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Peng Wang , Jun Wen , Chenyang Si , Yuntao Qian , Liang Wang