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Self-supervised contrastive learning has emerged as a powerful tool in machine learning and computer vision to learn meaningful representations from unlabeled data. Meanwhile, its empirical success has encouraged many theoretical studies to…

机器学习 · 计算机科学 2025-05-29 Jingyi Cui , Hongwei Wen , Yisen Wang

Person re-identification (ReID) aims at searching the same identity person among images captured by various cameras. Unsupervised person ReID attracts a lot of attention recently, due to it works without intensive manual annotation and thus…

计算机视觉与模式识别 · 计算机科学 2021-03-05 Bo Pang , Deming Zhai , Junjun Jiang , Xianming Liu

It has always been an important yet challenging problem to control language models to avoid generating texts with undesirable attributes, such as toxic language and unnatural repetition. We introduce Click for controllable text generation,…

计算与语言 · 计算机科学 2023-06-07 Chujie Zheng , Pei Ke , Zheng Zhang , Minlie Huang

Contrastive dimension reduction methods have been developed for case-control study data to identify variation that is enriched in the foreground (case) data X relative to the background (control) data Y. Here, we develop contrastive…

统计方法学 · 统计学 2024-01-09 Boyang Zhang , Sarah Nyquist , Andrew Jones , Barbara E. Engelhardt , Didong Li

Kleinberg and Mullainathan recently proposed a formal framework for studying the phenomenon of language generation, called language generation in the limit. In this model, an adversary gives an enumeration of example strings from an unknown…

数据结构与算法 · 计算机科学 2026-01-30 Aaron Li , Ian Zhang

Contrastive steering has been shown as a simple and effective method to adjust the generative behavior of LLMs at inference time. It uses examples of prompt responses with and without a trait to identify a direction in an intermediate…

机器学习 · 计算机科学 2026-03-04 Cullen Anderson , Narmeen Oozeer , Foad Namjoo , Remy Ogasawara , Amirali Abdullah , Jeff M. Phillips

Representation learning has emerged as a powerful paradigm for extracting valuable latent features from complex, high-dimensional data. In financial domains, learning informative representations for assets can be used for tasks like sector…

机器学习 · 计算机科学 2024-07-29 Rian Dolphin , Barry Smyth , Ruihai Dong

Graph contrastive learning has achieved great success in pre-training graph neural networks without ground-truth labels. Leading graph contrastive learning follows the classical scheme of contrastive learning, forcing model to identify the…

机器学习 · 计算机科学 2024-12-12 Junran Wu , Xueyuan Chen , Shangzhe Li

Contrastive learning is an efficient approach to self-supervised representation learning. Although recent studies have made progress in the theoretical understanding of contrastive learning, the investigation of how to characterize the…

机器学习 · 计算机科学 2023-08-21 Hiroki Waida , Yuichiro Wada , Léo Andéol , Takumi Nakagawa , Yuhui Zhang , Takafumi Kanamori

Data augmentation is a crucial component in unsupervised contrastive learning (CL). It determines how positive samples are defined and, ultimately, the quality of the learned representation. In this work, we open the door to new…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Benoit Dufumier , Carlo Alberto Barbano , Robin Louiset , Edouard Duchesnay , Pietro Gori

Contrastive learning (CL) has achieved astonishing progress in computer vision, speech, and natural language processing fields recently with self-supervised learning. However, CL approach to the supervised setting is not fully explored,…

计算与语言 · 计算机科学 2022-05-23 Zhenyu Zhang , Yuming Zhao , Meng Chen , Xiaodong He

Graph contrastive learning is the state-of-the-art unsupervised graph representation learning framework and has shown comparable performance with supervised approaches. However, evaluating whether the graph contrastive learning is robust to…

机器学习 · 计算机科学 2022-01-28 Sixiao Zhang , Hongxu Chen , Xiangguo Sun , Yicong Li , Guandong Xu

This paper highlights a shift in how to approach material generation. Instead of material-to-material, we propose a language-to-material generation architecture that utilizes millions of untapped data points. Using a web scraper to collect…

计算与语言 · 计算机科学 2023-11-15 Neel Redkar

Contrastive learning effectively clusters data despite a loss landscape filled with poor solutions, a success that is heavily dependent on the choice of data augmentations. How optimization consistently finds meaningful patterns remains an…

数值分析 · 数学 2026-05-19 Jeff Calder , Wonjun Lee

Recently, contrastive learning has risen to be a promising approach for large-scale self-supervised learning. However, theoretical understanding of how it works is still unclear. In this paper, we propose a new guarantee on the downstream…

机器学习 · 计算机科学 2022-05-30 Yifei Wang , Qi Zhang , Yisen Wang , Jiansheng Yang , Zhouchen Lin

Identifying influential nodes in complex networks is a fundamental task in network analysis with wide-ranging applications across domains. While deep learning has advanced node influence detection, existing supervised approaches remain…

社会与信息网络 · 计算机科学 2025-09-04 Yanmei Hu , Yihang Wu , Bing Sun , Xue Yue , Biao Cai , Xiangtao Li , Yang Chen

Contrastive representation learning has been recently proved to be very efficient for self-supervised training. These methods have been successfully used to train encoders which perform comparably to supervised training on downstream…

机器学习 · 计算机科学 2020-12-03 Ibrahim Merad , Yiyang Yu , Emmanuel Bacry , Stéphane Gaïffas

Contrastive learning has been successfully used for retrieval of semantically aligned sentences, but it often requires large batch sizes or careful engineering to work well. In this paper, we instead propose a generative model for learning…

计算与语言 · 计算机科学 2023-06-06 John Wieting , Jonathan H. Clark , William W. Cohen , Graham Neubig , Taylor Berg-Kirkpatrick

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…

机器学习 · 计算机科学 2021-03-17 Omer Yair , Tomer Michaeli

Self-supervised contrastive learning offers a means of learning informative features from a pool of unlabeled data. In this paper, we delve into another useful approach -- providing a way of selecting a core-set that is entirely unlabeled.…

机器学习 · 计算机科学 2021-04-08 Jeongwoo Ju , Heechul Jung , Yoonju Oh , Junmo Kim