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Contrastive learning (CL) methods effectively learn data representations in a self-supervision manner, where the encoder contrasts each positive sample over multiple negative samples via a one-vs-many softmax cross-entropy loss. By…

Machine Learning · Computer Science 2023-08-16 Huangjie Zheng , Xu Chen , Jiangchao Yao , Hongxia Yang , Chunyuan Li , Ya Zhang , Hao Zhang , Ivor Tsang , Jingren Zhou , Mingyuan Zhou

Video game genre classification based on its cover and textual description would be utterly beneficial to many modern identification, collocation, and retrieval systems. At the same time, it is also an extremely challenging task due to the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Yuhang Jiang , Lukun Zheng

Contrastive learning allows us to flexibly define powerful losses by contrasting positive pairs from sets of negative samples. Recently, the principle has also been used to learn cross-modal embeddings for video and text, yet without…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Mohammadreza Zolfaghari , Yi Zhu , Peter Gehler , Thomas Brox

Self-supervised representation learning is a critical problem in computer vision, as it provides a way to pretrain feature extractors on large unlabeled datasets that can be used as an initialization for more efficient and effective…

Computer Vision and Pattern Recognition · Computer Science 2020-12-25 Yunze Liu , Li Yi , Shanghang Zhang , Qingnan Fan , Thomas Funkhouser , Hao Dong

Machine learning can greatly benefit from providing learning algorithms with pairs of contrastive training examples -- typically pairs of instances that differ only slightly, yet have different class labels. Intuitively, the difference in…

Machine Learning · Computer Science 2025-06-23 Farnam Mansouri , Hans U. Simon , Adish Singla , Yuxin Chen , Sandra Zilles

Contrastive learning is a powerful technique to learn representations that are semantically distinctive and geometrically invariant. While most of the earlier approaches have demonstrated its effectiveness on single-modality learning tasks…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Anurag Jain , Yashaswi Verma

Learning good representations involves capturing the diverse ways in which data samples relate. Contrastive loss - an objective matching related samples - underlies methods from self-supervised to multimodal learning. Contrastive losses,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Vlad Sobal , Mark Ibrahim , Randall Balestriero , Vivien Cabannes , Diane Bouchacourt , Pietro Astolfi , Kyunghyun Cho , Yann LeCun

Given a collection of images, humans are able to discover landmarks by modeling the shared geometric structure across instances. This idea of geometric equivariance has been widely used for the unsupervised discovery of object landmark…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Zezhou Cheng , Jong-Chyi Su , Subhransu Maji

Contrastive learning, which aims at minimizing the distance between positive pairs while maximizing that of negative ones, has been widely and successfully applied in unsupervised feature learning, where the design of positive and negative…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Rui Zhu , Bingchen Zhao , Jingen Liu , Zhenglong Sun , Chang Wen Chen

Recently, pre-trained transformer-based models have achieved great success in the task of definition generation (DG). However, previous encoder-decoder models lack effective representation learning to contain full semantic components of the…

Computation and Language · Computer Science 2022-10-04 Hengyuan Zhang , Dawei Li , Shiping Yang , Yanran Li

Humans view the world through many sensory channels, e.g., the long-wavelength light channel, viewed by the left eye, or the high-frequency vibrations channel, heard by the right ear. Each view is noisy and incomplete, but important…

Computer Vision and Pattern Recognition · Computer Science 2020-12-21 Yonglong Tian , Dilip Krishnan , Phillip Isola

Representation learning has significantly been developed with the advance of contrastive learning methods. Most of those methods have benefited from various data augmentations that are carefully designated to maintain their identities so…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Xiao Wang , Guo-Jun Qi

Despite the success of a number of recent techniques for visual self-supervised deep learning, there has been limited investigation into the representations that are ultimately learned. By leveraging recent advances in the comparison of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Tom George Grigg , Dan Busbridge , Jason Ramapuram , Russ Webb

Existing text recognition methods usually need large-scale training data. Most of them rely on synthetic training data due to the lack of annotated real images. However, there is a domain gap between the synthetic data and real data, which…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Mingkun Yang , Minghui Liao , Pu Lu , Jing Wang , Shenggao Zhu , Hualin Luo , Qi Tian , Xiang Bai

Contrastive learning, along with its variations, has been a highly effective self-supervised learning method across diverse domains. Contrastive learning measures the distance between representations using cosine similarity and uses…

Machine Learning · Computer Science 2023-10-11 Daniel Rho , TaeSoo Kim , Sooill Park , Jaehyun Park , JaeHan Park

The recent demand for customized image generation raises a need for techniques that effectively extract the common concept from small sets of images. Existing methods typically rely on additional guidance, such as text prompts or spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Minseo Kim , Minchan Kwon , Dongyeun Lee , Yunho Jeon , Junmo Kim

We address the problem of generalized category discovery (GCD) that aims to partition a partially labeled collection of images; only a small part of the collection is labeled and the total number of target classes is unknown. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Sua Choi , Dahyun Kang , Minsu Cho

Learning visual representations of medical images (e.g., X-rays) is core to medical image understanding but its progress has been held back by the scarcity of human annotations. Existing work commonly relies on fine-tuning weights…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Yuhao Zhang , Hang Jiang , Yasuhide Miura , Christopher D. Manning , Curtis P. Langlotz

Prior research has explored potential applications of video games in programming education to elicit computational thinking skills. However, existing approaches are often either too general, not taking into account the diversity of genres…

Multimedia · Computer Science 2024-07-08 Giulio Barbero , Marcello A. Gómez-Maureira , Felienne F. J. Hermans

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
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