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Unsupervised learning poses one of the most difficult challenges in computer vision today. The task has an immense practical value with many applications in artificial intelligence and emerging technologies, as large quantities of unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

Traditionally, training neural networks to perform semantic segmentation required expensive human-made annotations. But more recently, advances in the field of unsupervised learning have made significant progress on this issue and towards…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Leon Sick , Dominik Engel , Pedro Hermosilla , Timo Ropinski

In this paper, we introduce a hierarchical transformer-based model designed for sophisticated image segmentation tasks, effectively bridging the granularity of part segmentation with the comprehensive scope of object segmentation. At the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yunfei Xie , Cihang Xie , Alan Yuille , Jieru Mei

Contrastive learning, which aims to capture general representation from unlabeled images to initialize the medical analysis models, has been proven effective in alleviating the high demand for expensive annotations. Current methods mainly…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Huai Chen , Renzhen Wang , Xiuying Wang , Jieyu Li , Qu Fang , Hui Li , Jianhao Bai , Qing Peng , Deyu Meng , Lisheng Wang

Salient object detection requires a comprehensive and scalable receptive field to locate the visually significant objects in the image. Recently, the emergence of visual transformers and multi-branch modules has significantly enhanced the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Mingcan Ma , Changqun Xia , Chenxi Xie , Xiaowu Chen , Jia Li

Humans are very good at directing their visual attention toward relevant areas when they search for different types of objects. For instance, when we search for cars, we will look at the streets, not at the top of buildings. The motivation…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Hughes Perreault , Guillaume-Alexandre Bilodeau , Nicolas Saunier , Maguelonne Héritier

With recent advancements in deep learning methods, automatically learning deep features from the original data is becoming an effective and widespread approach. However, the hand-crafted expert knowledge-based features are still insightful.…

Machine Learning · Computer Science 2021-05-10 Guanjie Huang , Fenglong Ma

This paper investigates a general framework to discover categories of unlabeled scene images according to their appearances (i.e., textures and structures). We jointly solve the two coupled tasks in an unsupervised manner: (i) classifying…

Computer Vision and Pattern Recognition · Computer Science 2015-02-03 Liang Lin , Ruimao Zhang , Xiaohua Duan

A fundamental problem faced by object recognition systems is that objects and their features can appear in different locations, scales and orientations. Current deep learning methods attempt to achieve invariance to local translations via…

Computer Vision and Pattern Recognition · Computer Science 2017-12-12 Dimitrios C. Gklezakos , Rajesh P. N. Rao

Graph Anomaly Detection (GAD) plays a vital role in various data mining applications such as e-commerce fraud prevention and malicious user detection. Recently, Graph Neural Network (GNN) based approach has demonstrated great effectiveness…

Machine Learning · Computer Science 2025-03-18 Hang Ni , Jindong Han , Nengjun Zhu , Hao Liu

Supervised object detection and semantic segmentation require object or even pixel level annotations. When there exist image level labels only, it is challenging for weakly supervised algorithms to achieve accurate predictions. The accuracy…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Weifeng Ge , Sibei Yang , Yizhou Yu

Graph contrastive learning has been successfully applied in text classification due to its remarkable ability for self-supervised node representation learning. However, explicit graph augmentations may lead to a loss of semantics in the…

Computation and Language · Computer Science 2024-11-28 Wei Ai , Jianbin Li , Ze Wang , Yingying Wei , Tao Meng , Yuntao Shou , Keqin Lib

Hyperspectral target detection is a pixel-level recognition problem. Given a few target samples, it aims to identify the specific target pixels such as airplane, vehicle, ship, from the entire hyperspectral image. In general, the background…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Can Yao , Yuan Yuan , Zhiyu Jiang

The exploration of Bird's-Eye View (BEV) mapping technology has driven significant innovation in visual perception technology for autonomous driving. BEV mapping models need to be applied to the unlabeled real world, making the study of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Siyu Li , Yihong Cao , Hao Shi , Yongsheng Zang , Xuan He , Kailun Yang , Zhiyong Li

Interpretable-by-design models are gaining traction in computer vision because they provide faithful explanations for their predictions. In image classification, these models typically recover human-interpretable concepts from an image and…

Machine Learning · Computer Science 2026-03-31 Nghia Nguyen , Tianjiao Ding , René Vidal

Unsupervised localization and segmentation are long-standing computer vision challenges that involve decomposing an image into semantically-meaningful segments without any labeled data. These tasks are particularly interesting in an…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Luke Melas-Kyriazi , Christian Rupprecht , Iro Laina , Andrea Vedaldi

Up to the present, an enormous number of advanced techniques have been developed to enhance and extract the spatially semantic information in hyperspectral image processing and analysis. However, locally semantic change, such as scene…

Computer Vision and Pattern Recognition · Computer Science 2019-12-20 Danfeng Hong , Xin Wu , Pedram Ghamisi , Jocelyn Chanussot , Naoto Yokoya , Xiao Xiang Zhu

Object placement aims to determine the appropriate placement (\emph{e.g.}, location and size) of a foreground object when placing it on the background image. Most previous works are limited by small-scale labeled dataset, which hinders the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Bingjie Gao , Bo Zhang , Li Niu

Object parts serve as crucial intermediate representations in various downstream tasks, but part-level representation learning still has not received as much attention as other vision tasks. Previous research has established that Vision…

Computer Vision and Pattern Recognition · Computer Science 2024-08-16 Jiahao Xia , Wenjian Huang , Min Xu , Jianguo Zhang , Haimin Zhang , Ziyu Sheng , Dong Xu

Temporal Heterogeneous Networks play a crucial role in capturing the dynamics and heterogeneity inherent in various real-world complex systems, rendering them a noteworthy research avenue for link prediction. However, existing methods fail…

Social and Information Networks · Computer Science 2025-12-12 Yu Tai , Xinglong Wu , Hongwei Yang , Hui He , Duanjing Chen , Yuanming Shao , Weizhe Zhang
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