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Contrastive learning methods have significantly narrowed the gap between supervised and unsupervised learning on computer vision tasks. In this paper, we explore their application to geo-located datasets, e.g. remote sensing, where…

计算机视觉与模式识别 · 计算机科学 2022-03-09 Kumar Ayush , Burak Uzkent , Chenlin Meng , Kumar Tanmay , Marshall Burke , David Lobell , Stefano Ermon

Fire is characterized by its sudden onset and destructive power, making early fire detection crucial for ensuring human safety and protecting property. With the advancement of deep learning, the application of computer vision in fire…

计算机视觉与模式识别 · 计算机科学 2025-02-17 Ziqi Zhang , Xiuzhuang Zhou , Xiangyang Gong

To respond to disasters such as earthquakes, wildfires, and armed conflicts, humanitarian organizations require accurate and timely data in the form of damage assessments, which indicate what buildings and population centers have been most…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Jihyeon Lee , Joseph Z. Xu , Kihyuk Sohn , Wenhan Lu , David Berthelot , Izzeddin Gur , Pranav Khaitan , Ke-Wei , Huang , Kyriacos Koupparis , Bernhard Kowatsch

Rapid and accurate wildfire detection is crucial for emergency response and environmental management. In airborne and spaceborne missions, real-time algorithms must distinguish between no fire, active fire, and post-fire conditions, and…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Mark Moussa , Andre Williams , Seth Roffe , Douglas Morton

In contemporary self-supervised contrastive algorithms like SimCLR, MoCo, etc., the task of balancing attraction between two semantically similar samples and repulsion between two samples of different classes is primarily affected by the…

机器学习 · 计算机科学 2024-05-13 Siladittya Manna , Soumitri Chattopadhyay , Rakesh Dey , Saumik Bhattacharya , Umapada Pal

Visualization methods based on the nearest neighbor graph, such as t-SNE or UMAP, are widely used for visualizing high-dimensional data. Yet, these approaches only produce meaningful results if the nearest neighbors themselves are…

机器学习 · 计算机科学 2024-06-06 Jan Niklas Böhm , Philipp Berens , Dmitry Kobak

Human civilization has an increasingly powerful influence on the earth system. Affected by climate change and land-use change, natural disasters such as flooding have been increasing in recent years. Earth observations are an invaluable…

计算机视觉与模式识别 · 计算机科学 2022-12-08 Ritu Yadav , Andrea Nascetti , Hossein Azizpour , Yifang Ban

Change detection from traditional \added{2D} optical images has limited capability to model the changes in the height or shape of objects. Change detection using 3D point cloud \added{from photogrammetry or LiDAR surveying} can fill this…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Iris de Gélis , Sudipan Saha , Muhammad Shahzad , Thomas Corpetti , Sébastien Lefèvre , Xiao Xiang Zhu

The recent breakthrough achieved by contrastive learning accelerates the pace for deploying unsupervised training on real-world data applications. However, unlabeled data in reality is commonly imbalanced and shows a long-tail distribution,…

计算机视觉与模式识别 · 计算机科学 2021-06-08 Ziyu Jiang , Tianlong Chen , Bobak Mortazavi , Zhangyang Wang

Wildfires are one of the costliest and deadliest natural disasters in the US, causing damage to millions of hectares of forest resources and threatening the lives of people and animals. Of particular importance are risks to firefighters and…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Alireza Shamsoshoara , Fatemeh Afghah , Abolfazl Razi , Liming Zheng , Peter Z Fulé , Erik Blasch

In this study, we present a simple multi-channel framework for contrastive learning (MC-SimCLR) to encode 'what' and 'where' of spatial audios. MC-SimCLR learns joint spectral and spatial representations from unlabeled spatial audios,…

音频与语音处理 · 电气工程与系统科学 2023-09-29 Xilin Jiang , Cong Han , Yinghao Aaron Li , Nima Mesgarani

Fire localization in images and videos is an important step for an autonomous system to combat fire incidents. State-of-art image segmentation methods based on deep neural networks require a large number of pixel-annotated samples to train…

计算机视觉与模式识别 · 计算机科学 2021-11-17 Milad Niknejad , Alexandre Bernardino

Feature selection methods have an important role on the readability of data and the reduction of complexity of learning algorithms. In recent years, a variety of efforts are investigated on feature selection problems based on unsupervised…

机器学习 · 计算机科学 2019-12-12 Mohsen Ghassemi Parsa , Hadi Zare , Mehdi Ghatee

Contrastive learning is a discriminative approach that aims at grouping similar samples closer and diverse samples far from each other. It it an efficient technique to train an encoder generating distinguishable and informative…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Qing Chen , Jian Zhang

Contrastive learning is a promising approach to unsupervised learning, as it inherits the advantages of well-studied deep models without a dedicated and complex model design. In this paper, based on bidirectional encoder representations…

计算与语言 · 计算机科学 2021-09-20 Haoxiang Shi , Cen Wang

The proliferation of Deep Learning (DL)-based methods for radiographic image analysis has created a great demand for expert-labeled radiology data. Recent self-supervised frameworks have alleviated the need for expert labeling by obtaining…

计算机视觉与模式识别 · 计算机科学 2023-03-27 S. A. Rizvi , R. Tang , X. Jiang , X. Ma , X. Hu

We develop a self-supervised method for density-based anomaly detection using contrastive learning, and test it using event-level anomaly data from CMS ADC2021. The AnomalyCLR technique is data-driven and uses augmentations of the…

高能物理 - 唯象学 · 物理学 2024-10-29 Barry M. Dillon , Luigi Favaro , Friedrich Feiden , Tanmoy Modak , Tilman Plehn

Recent progress in contrastive learning has revolutionized unsupervised representation learning. Concretely, multiple views (augmentations) from the same image are encouraged to map to the similar embeddings, while views from different…

计算机视觉与模式识别 · 计算机科学 2021-01-20 Nanxuan Zhao , Zhirong Wu , Rynson W. H. Lau , Stephen Lin

In neutrino physics, analyses often depend on large simulated datasets, making it essential for models to generalise effectively to real-world detector data. Contrastive learning, a well-established technique in deep learning, offers a…

高能物理 - 实验 · 物理学 2025-05-23 Alex Wilkinson , Radi Radev , Saul Alonso-Monsalve

Self-supervised learning is a machine learning approach that generates implicit labels by learning underlined patterns and extracting discriminative features from unlabeled data without manual labelling. Contrastive learning introduces the…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Asifullah Khan , Laiba Asmatullah , Anza Malik , Shahzaib Khan , Hamna Asif