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Contrastive learning predicts whether two images belong to the same category by training a model to make their feature representations as close or as far away as possible. In this paper, we rethink how to mine samples in contrastive…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Hengkui Dong , Xianzhong Long , Yun Li

Contrastive learning is an approach to representation learning that utilizes naturally occurring similar and dissimilar pairs of data points to find useful embeddings of data. In the context of document classification under topic modeling…

Machine Learning · Computer Science 2020-03-05 Christopher Tosh , Akshay Krishnamurthy , Daniel Hsu

We present a novel unsupervised domain adaptation method for semantic segmentation that generalizes a model trained with source images and corresponding ground-truth labels to a target domain. A key to domain adaptive semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Geon Lee , Chanho Eom , Wonkyung Lee , Hyekang Park , Bumsub Ham

Trained classification models can unintentionally lead to biased representations and predictions, which can reinforce societal preconceptions and stereotypes. Existing debiasing methods for classification models, such as adversarial…

Computation and Language · Computer Science 2021-09-23 Aili Shen , Xudong Han , Trevor Cohn , Timothy Baldwin , Lea Frermann

Unsupervised learning methods for feature extraction are becoming more and more popular. We combine the popular contrastive learning method (prototypical contrastive learning) and the classic representation learning method (autoencoder) to…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Zeyu Cao , Xiaorun Li , Liaoying Zhao

Medical image segmentation is a relevant task as it serves as the first step for several diagnosis processes, thus it is indispensable in clinical usage. Whilst major success has been reported using supervised techniques, they assume a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Lihao Liu , Angelica I Aviles-Rivero , Carola-Bibiane Schönlieb

The success of Transformer-based models has encouraged many researchers to learn CAD models using sequence-based approaches. However, learning CAD models is still a challenge, because they can be represented as complex shapes with long…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Minseop Jung , Minseong Kim , Jibum Kim

In this paper, we present a framework for contrastive learning for audio representations, in a self supervised frame work without access to any ground truth labels. The core idea in self supervised contrastive learning is to map an audio…

Sound · Computer Science 2021-03-18 Prateek Verma , Julius Smith

Modern neural recording techniques such as two-photon imaging or Neuropixel probes allow to acquire vast time-series datasets with responses of hundreds or thousands of neurons. Contrastive learning is a powerful self-supervised framework…

Texture classification is a pivotal task in computer vision, presenting unique challenges due to high inter-class similarity and the sensitivity of structural patterns to scale and illumination changes. While Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Joao B Florindo

The acquisition of inductive bias through point-level contrastive learning holds paramount significance in point cloud pre-training. However, the square growth in computational requirements with the scale of the point cloud poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Zhiyi Pan , Guoqing Liu , Wei Gao , Thomas H. Li

Recent breakthroughs in self-supervised learning show that such algorithms learn visual representations that can be transferred better to unseen tasks than joint-training methods relying on task-specific supervision. In this paper, we found…

Machine Learning · Computer Science 2021-06-29 Hyuntak Cha , Jaeho Lee , Jinwoo Shin

We present a deep learning framework for accurate visual correspondences and demonstrate its effectiveness for both geometric and semantic matching, spanning across rigid motions to intra-class shape or appearance variations. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Christopher B. Choy , JunYoung Gwak , Silvio Savarese , Manmohan Chandraker

Recently, unsupervised image-to-image translation methods based on contrastive learning have achieved state-of-the-art results in many tasks. However, in the previous works, the negatives are sampled from the input image itself, which…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Chen Zhao , Wei-Ling Cai , Zheng Yuan , Cheng-Wei Hu

Contrastive learning has become a key component of self-supervised learning approaches for graph-structured data. Despite their success, existing graph contrastive learning methods are incapable of uncertainty quantification for node…

Referring image segmentation aims to segment the target referent in an image conditioning on a natural language expression. Existing one-stage methods employ per-pixel classification frameworks, which attempt straightforwardly to align…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jiajin Tang , Ge Zheng , Cheng Shi , Sibei Yang

As a seminal tool in self-supervised representation learning, contrastive learning has gained unprecedented attention in recent years. In essence, contrastive learning aims to leverage pairs of positive and negative samples for…

Machine Learning · Computer Science 2022-02-01 Ching-Yun Ko , Jeet Mohapatra , Sijia Liu , Pin-Yu Chen , Luca Daniel , Lily Weng

State-of-the-art object detection methods applied to satellite and drone imagery largely fail to identify small and dense objects. One reason is the high variability of content in the overhead imagery due to the terrestrial region captured…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Debojyoti Biswas , Jelena Tešić

Contrastive learning is commonly applied to self-supervised learning, and has been shown to outperform traditional approaches such as the triplet loss and N-pair loss. However, the requirement of large batch sizes and memory banks has made…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Rishab Balasubramanian , Rupashree Dey , Kunal Rathore

Contrastive learning has emerged as a competitive pretraining method for object detection. Despite this progress, there has been minimal investigation into the robustness of contrastively pretrained detectors when faced with domain shifts.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Kyle Buettner , Adriana Kovashka
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