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The superior performance of some of today's state-of-the-art deep learning models is to some extent owed to extensive (self-)supervised contrastive pretraining on large-scale datasets. In contrastive learning, the network is presented with…

Machine Learning · Computer Science 2022-07-20 Shervin Ardeshir , Navid Azizan

Analysis of cardiac ultrasound images is commonly performed in routine clinical practice for quantification of cardiac function. Its increasing automation frequently employs deep learning networks that are trained to predict disease or…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Agisilaos Chartsias , Shan Gao , Angela Mumith , Jorge Oliveira , Kanwal Bhatia , Bernhard Kainz , Arian Beqiri

Click-through rate (CTR) prediction is a critical task in online advertising systems. Most existing methods mainly model the feature-CTR relationship and suffer from the data sparsity issue. In this paper, we propose DeepMCP, which models…

Machine Learning · Computer Science 2019-07-22 Wentao Ouyang , Xiuwu Zhang , Shukui Ren , Chao Qi , Zhaojie Liu , Yanlong Du

Contrastive learning is a powerful framework for learning self-supervised representations that generalize well to downstream supervised tasks. We show that multiple existing contrastive learning methods can be reinterpreted as learning…

Machine Learning · Computer Science 2023-02-16 Daniel D. Johnson , Ayoub El Hanchi , Chris J. Maddison

Sales promotions, as short-term incentives to stimulate product purchases, play a pivotal role in modern e-commerce marketing strategies. During promotional events, user behavior patterns exhibit distinct characteristics compared to regular…

Information Retrieval · Computer Science 2026-05-12 Xin Song , Kaiyuan Li , Jinxin Hu

Machine Learning (ML) models typically require large-scale, balanced training data to be robust, generalizable, and effective in the context of healthcare. This has been a major issue for developing ML models for the coronavirus-disease…

In this paper, we present CLCC, a novel contrastive learning framework for color constancy. Contrastive learning has been applied for learning high-quality visual representations for image classification. One key aspect to yield useful…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Yi-Chen Lo , Chia-Che Chang , Hsuan-Chao Chiu , Yu-Hao Huang , Chia-Ping Chen , Yu-Lin Chang , Kevin Jou

Self-supervised representation learning (SSRL) methods have shown great success in computer vision. In recent studies, augmentation-based contrastive learning methods have been proposed for learning representations that are invariant or…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Xia Xu , Jochen Triesch

We present a self-supervised Contrastive Video Representation Learning (CVRL) method to learn spatiotemporal visual representations from unlabeled videos. Our representations are learned using a contrastive loss, where two augmented clips…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Rui Qian , Tianjian Meng , Boqing Gong , Ming-Hsuan Yang , Huisheng Wang , Serge Belongie , Yin Cui

Estimating post-click conversion rate (CVR) accurately is crucial in E-commerce. However, CVR prediction usually suffers from three major challenges in practice: i) data sparsity: compared with impressions, conversion samples are often…

Machine Learning · Computer Science 2020-11-25 Yanshi Wang , Jie Zhang , Qing Da , Anxiang Zeng

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

Contrastive Learning (CL) has emerged as a dominant technique for unsupervised representation learning which embeds augmented versions of the anchor close to each other (positive samples) and pushes the embeddings of other samples…

Artificial Intelligence · Computer Science 2022-06-15 Jun Xia , Lirong Wu , Ge Wang , Jintao Chen , Stan Z. Li

Improving the performance of click-through rate (CTR) prediction remains one of the core tasks in online advertising systems. With the rise of deep learning, CTR prediction models with deep networks remarkably enhance model capacities. In…

Machine Learning · Computer Science 2019-11-05 Yikai Wang , Liang Zhang , Quanyu Dai , Fuchun Sun , Bo Zhang , Yang He , Weipeng Yan , Yongjun Bao

Predicting the neural response to natural images in the visual cortex requires extracting relevant features from the images and relating those feature to the observed responses. In this work, we optimize the feature extraction in order to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Alex Mulrooney , Austin J. Brockmeier

Conversion Rate (\emph{CVR}) prediction in modern industrial e-commerce platforms is becoming increasingly important, which directly contributes to the final revenue. In order to address the well-known sample selection bias (\emph{SSB}) and…

Machine Learning · Computer Science 2021-04-21 Hong Wen , Jing Zhang , Fuyu Lv , Wentian Bao , Tianyi Wang , Zulong Chen

Contrastive divergence (CD) learning is a classical method for fitting unnormalized statistical models to data samples. Despite its wide-spread use, the convergence properties of this algorithm are still not well understood. The main source…

Machine Learning · Computer Science 2021-03-17 Omer Yair , Tomer Michaeli

A key requirement for the success of supervised deep learning is a large labeled dataset - a condition that is difficult to meet in medical image analysis. Self-supervised learning (SSL) can help in this regard by providing a strategy to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-02 Krishna Chaitanya , Ertunc Erdil , Neerav Karani , Ender Konukoglu

Contrastive learning -- a modern approach to extract useful representations from unlabeled data by training models to distinguish similar samples from dissimilar ones -- has driven significant progress in foundation models. In this work, we…

Machine Learning · Statistics 2025-10-15 Licong Lin , Song Mei

Vision-Language Models (VLMs) have demonstrated remarkable success across diverse visual tasks, yet their performance degrades in complex visual environments. While existing enhancement approaches require additional training, rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Yuyao Ge , Shenghua Liu , Yiwei Wang , Lingrui Mei , Baolong Bi , Xuanshan Zhou , Jiayu Yao , Jiafeng Guo , Xueqi Cheng

Corporate credit rating reflects the level of corporate credit and plays a crucial role in modern financial risk control. But real-world credit rating data usually shows long-tail distributions, which means heavy class imbalanced problem…

Machine Learning · Computer Science 2022-02-24 Bojing Feng , Wenfang Xue
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