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Given a similarity metric, contrastive methods learn a representation in which examples that are similar are pushed together and examples that are dissimilar are pulled apart. Contrastive learning techniques have been utilized extensively…

Machine Learning · Computer Science 2023-07-07 Emily Mu , John Guttag , Maggie Makar

Scientific articles are long text documents organized into sections, each describing aspects of the research. Analyzing scientific production has become progressively challenging due to the increase in the number of available articles.…

Computation and Language · Computer Science 2024-04-02 Gustavo Bartz Guedes , Ana Estela Antunes da Silva

In this paper, we propose a simple yet effective contrastive knowledge distillation framework that achieves sample-wise logit alignment while preserving semantic consistency. Conventional knowledge distillation approaches exhibit…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Wencheng Zhu , Xin Zhou , Pengfei Zhu , Yu Wang , Qinghua Hu

Contrastive self-supervised learning (CSL) based on instance discrimination typically attracts positive samples while repelling negatives to learn representations with pre-defined binary self-supervision. However, vanilla CSL is inadequate…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Yifei Zhang , Chang Liu , Yu Zhou , Weiping Wang , Qixiang Ye , Xiangyang Ji

Whilst contrastive learning has recently brought notable benefits to deep clustering of unlabelled images by learning sample-specific discriminative visual features, its potential for explicitly inferring class decision boundaries is less…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Jiabo Huang , Shaogang Gong

Contrastive Learning (CL) has been successfully applied to classification and other downstream tasks related to concrete concepts, such as objects contained in the ImageNet dataset. No attempts seem to have been made so far in applying this…

Machine Learning · Computer Science 2025-05-30 Daniel N. Nissani

Contrastive learning methods, such as CLIP, leverage naturally paired data-for example, images and their corresponding text captions-to learn general representations that transfer efficiently to downstream tasks. While such approaches are…

Machine Learning · Computer Science 2024-11-05 Adriel Saporta , Aahlad Puli , Mark Goldstein , Rajesh Ranganath

Recently, various contrastive learning techniques have been developed to categorize time series data and exhibit promising performance. A general paradigm is to utilize appropriate augmentations and construct feasible positive samples such…

Machine Learning · Computer Science 2024-10-11 Qianying Ren , Dongsheng Luo , Dongjin Song

We propose Graph Contrastive Learning (GraphCL), a general framework for learning node representations in a self supervised manner. GraphCL learns node embeddings by maximizing the similarity between the representations of two randomly…

Machine Learning · Computer Science 2020-07-17 Hakim Hafidi , Mounir Ghogho , Philippe Ciblat , Ananthram Swami

Recent trends in NLP utilize knowledge graphs (KGs) to enhance pretrained language models by incorporating additional knowledge from the graph structures to learn domain-specific terminology or relationships between documents that might…

Computation and Language · Computer Science 2025-10-08 Anastasia Zhukova , Jonas Lührs , Christian E. Lobmüller , Bela Gipp

Authorship has entangled style and content inside. Authors frequently write about the same topics in the same style, so when different authors write about the exact same topic the easiest way out to distinguish them is by understanding the…

Computation and Language · Computer Science 2024-11-28 Javier Huertas-Tato , Adrián Girón-Jiménez , Alejandro Martín , David Camacho

Contrastive learning is a highly successful technique for learning representations of data from labeled tuples, specifying the distance relations within the tuple. We study the sample complexity of contrastive learning, i.e. the minimum…

Machine Learning · Computer Science 2023-12-04 Noga Alon , Dmitrii Avdiukhin , Dor Elboim , Orr Fischer , Grigory Yaroslavtsev

Contrastive Learning (CL) has shown promising performance in collaborative filtering. The key idea is to generate augmentation-invariant embeddings by maximizing the Mutual Information between different augmented views of the same instance.…

Information Retrieval · Computer Science 2024-01-01 Huiyuan Chen , Vivian Lai , Hongye Jin , Zhimeng Jiang , Mahashweta Das , Xia Hu

Distance-based anomaly detection methods rely on compact in-distribution (ID) embeddings that are well separated from anomalies. However, conventional contrastive learning strategies often struggle to achieve this balance, either promoting…

Machine Learning · Computer Science 2026-02-02 Willian T. Lunardi , Abdulrahman Banabila , Dania Herzalla , Martin Andreoni

Unsupervised sentence embedding aims to obtain the most appropriate embedding for a sentence to reflect its semantic. Contrastive learning has been attracting developing attention. For a sentence, current models utilize diverse data…

Computation and Language · Computer Science 2022-03-03 Hao Wang , Yangguang Li , Zhen Huang , Yong Dou , Lingpeng Kong , Jing Shao

Recent empirical works have successfully used unlabeled data to learn feature representations that are broadly useful in downstream classification tasks. Several of these methods are reminiscent of the well-known word2vec embedding…

Machine Learning · Computer Science 2019-02-26 Sanjeev Arora , Hrishikesh Khandeparkar , Mikhail Khodak , Orestis Plevrakis , Nikunj Saunshi

Many applications require linking individuals, firms, or locations across datasets. Most widely used methods, especially in social science, do not employ deep learning, with record linkage commonly approached using string matching…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Abhishek Arora , Xinmei Yang , Shao-Yu Jheng , Melissa Dell

Representations of events described in text are important for various tasks. In this work, we present SWCC: a Simultaneous Weakly supervised Contrastive learning and Clustering framework for event representation learning. SWCC learns event…

Computation and Language · Computer Science 2022-03-16 Jun Gao , Wei Wang , Changlong Yu , Huan Zhao , Wilfred Ng , Ruifeng Xu

Vector representations of natural language are ubiquitous in search applications. Recently, various methods based on contrastive learning have been proposed to learn textual representations from unlabelled data; by maximizing alignment…

Computation and Language · Computer Science 2023-07-17 Sachin J. Chanchani , Ruihong Huang

This paper shows that a popular approach to the supervised embedding of documents for classification, namely, contrastive Word Mover's Embedding, can be significantly enhanced by adding interpretability. This interpretability is achieved by…

Computation and Language · Computer Science 2021-11-02 Ruijie Jiang , Julia Gouvea , Eric Miller , David Hammer , Shuchin Aeron