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In recent years, there has been significant progress in developing pre-trained language models for NLP. However, these models often struggle when fine-tuned on small datasets. To address this issue, researchers have proposed various…

Computation and Language · Computer Science 2023-08-25 Amirhossein Abaskohi , Sascha Rothe , Yadollah Yaghoobzadeh

Self-supervised learning approach like contrastive learning is attached great attention in natural language processing. It uses pairs of training data augmentations to build a classification task for an encoder with well representation…

Computation and Language · Computer Science 2021-12-03 Deshui Miao , Jiaqi Zhang , Wenbo Xie , Jian Song , Xin Li , Lijuan Jia , Ning Guo

Time-series representation learning can extract representations from data with temporal dynamics and sparse labels. When labeled data are sparse but unlabeled data are abundant, contrastive learning, i.e., a framework to learn a latent…

Machine Learning · Computer Science 2023-03-03 Heejeong Choi , Pilsung Kang

Previous deep learning approaches for survival analysis have primarily relied on ranking losses to improve discrimination performance, which often comes at the expense of calibration performance. To address such an issue, we propose a novel…

Machine Learning · Computer Science 2024-11-22 Dongjoon Lee , Hyeryn Park , Changhee Lee

We propose a self-supervised learning method for long text documents based on contrastive learning. A key to our method is Shuffle and Divide (SaD), a simple text augmentation algorithm that sets up a pretext task required for contrastive…

Computation and Language · Computer Science 2023-04-20 Joonseok Lee , Seongho Joe , Kyoungwon Park , Bogun Kim , Hoyoung Kang , Jaeseon Park , Youngjune Gwon

Deploying machine learning models in resource-constrained environments, such as edge devices or rapid prototyping scenarios, increasingly demands distillation of large datasets into significantly smaller yet informative synthetic datasets.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Wenmin Li , Shunsuke Sakai , Tatsuhito Hasegawa

Few-shot learning aims to transfer information from one task to enable generalization on novel tasks given a few examples. This information is present both in the domain and the class labels. In this work we investigate the complementary…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Orchid Majumder , Avinash Ravichandran , Subhransu Maji , Alessandro Achille , Marzia Polito , Stefano Soatto

In the era of big data and Artificial Intelligence, an emerging paradigm is to utilize contrastive self-supervised learning to model large-scale heterogeneous data. Many existing foundation models benefit from the generalization capability…

Machine Learning · Computer Science 2024-04-02 Lecheng Zheng , Baoyu Jing , Zihao Li , Hanghang Tong , Jingrui He

While self-supervised representation learning (SSL) has proved to be effective in the large model, there is still a huge gap between the SSL and supervised method in the lightweight model when following the same solution. We delve into this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Kai Zheng , Yuanjiang Wang , Ye Yuan

What role do augmentations play in contrastive learning? Recent work suggests that good augmentations are label-preserving with respect to a specific downstream task. We complicate this picture by showing that label-destroying augmentations…

Machine Learning · Computer Science 2022-12-19 Alex Tamkin , Margalit Glasgow , Xiluo He , Noah Goodman

Session-based recommendation, which aims to predict the next item of users' interest as per an existing sequence interaction of items, has attracted growing applications of Contrastive Learning (CL) with improved user and item…

Information Retrieval · Computer Science 2023-12-21 Zhengxiang Shi , Xi Wang , Aldo Lipani

Modeling contextual information in a search session has drawn more and more attention when understanding complex user intents. Recent methods are all data-driven, i.e., they train different models on large-scale search log data to identify…

Information Retrieval · Computer Science 2024-07-08 Haonan Chen , Zhicheng Dou , Yutao Zhu , Ji-Rong Wen

Sequential Recommendationdescribes a set of techniques to model dynamic user behavior in order to predict future interactions in sequential user data. At their core, such approaches model transition probabilities between items in a…

Information Retrieval · Computer Science 2021-08-17 Zhiwei Liu , Yongjun Chen , Jia Li , Philip S. Yu , Julian McAuley , Caiming Xiong

Context of data points, which is usually defined as the other data points in a data set, has been found to play important roles in data representation and classification. In this paper, we study the problem of using context of a data point…

Machine Learning · Computer Science 2015-08-19 Xuejie Liu , Jingbin Wang , Ming Yin , Benjamin Edwards , Peijuan Xu

Unsupervised learning has made substantial progress over the last few years, especially by means of contrastive self-supervised learning. The dominating dataset for benchmarking self-supervised learning has been ImageNet, for which recent…

Image and Video Processing · Electrical Eng. & Systems 2022-08-17 Karin Stacke , Jonas Unger , Claes Lundström , Gabriel Eilertsen

Contrastive self-supervised learning (SSL) learns an embedding space that maps similar data pairs closer and dissimilar data pairs farther apart. Despite its success, one issue has been overlooked: the fairness aspect of representations…

Deep learning-based recommender systems have achieved remarkable success in recent years. However, these methods usually heavily rely on labeled data (i.e., user-item interactions), suffering from problems such as data sparsity and…

Information Retrieval · Computer Science 2023-10-12 Mengyuan Jing , Yanmin Zhu , Tianzi Zang , Ke Wang

Few-shot class incremental learning implies the model to learn new classes while retaining knowledge of previously learned classes with a small number of training instances. Existing frameworks typically freeze the parameters of the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Parinita Nema , Vinod K Kurmi

Contrastive learning has demonstrated great success in representation learning, especially for image classification tasks. However, there is still a shortage in studies targeting regression tasks, and more specifically applications on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Mohamad Dhaini , Paul Honeine , Maxime Berar , Antonin Van Exem

We propose a supervised contrastive learning framework for video representation learning that leverages temporally global context. We introduce a video to image aggregation strategy that spatially arranges multiple frames from each video…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Shaif Chowdhury , Mushfika Rahman , Greg Hamerly