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Recent contrastive methods show significant improvement in self-supervised learning in several domains. In particular, contrastive methods are most effective where data augmentation can be easily constructed e.g. in computer vision.…

机器学习 · 计算机科学 2021-12-09 Konstantinos Kallidromitis , Denis Gudovskiy , Kazuki Kozuka , Iku Ohama , Luca Rigazio

In recent years, supervised learning with convolutional networks (CNNs) has seen huge adoption in computer vision applications. Comparatively, unsupervised learning with CNNs has received less attention. In this work we hope to help bridge…

机器学习 · 计算机科学 2016-01-11 Alec Radford , Luke Metz , Soumith Chintala

Attribute-aware sequential recommendation entails predicting the next item a user will interact with based on a chronologically ordered history of past interactions, enriched with item attributes. Existing methods typically leverage…

信息检索 · 计算机科学 2026-05-08 Shereen Elsayed , Ngoc Son Le , Ahmed Rashed , Lars Schmidt-Thieme

Multi-party dialogues, common in collaborative scenarios like brainstorming sessions and negotiations, pose significant challenges due to their complexity and diverse speaker roles. Current methods often use graph neural networks to model…

计算与语言 · 计算机科学 2025-05-20 Zhongtian Hu , Qi He , Ronghan Li , Meng Zhao , Lifang Wang

We present Cycle-Contrastive Learning (CCL), a novel self-supervised method for learning video representation. Following a nature that there is a belong and inclusion relation of video and its frames, CCL is designed to find correspondences…

计算机视觉与模式识别 · 计算机科学 2020-10-29 Quan Kong , Wenpeng Wei , Ziwei Deng , Tomoaki Yoshinaga , Tomokazu Murakami

In recent years, several unsupervised, "contrastive" learning algorithms in vision have been shown to learn representations that perform remarkably well on transfer tasks. We show that this family of algorithms maximizes a lower bound on…

机器学习 · 计算机科学 2020-06-08 Mike Wu , Chengxu Zhuang , Milan Mosse , Daniel Yamins , Noah Goodman

Recently, contrastive self-supervised learning, where the proximity of representations is determined based on the identities of samples, has made remarkable progress in unsupervised representation learning. SimSiam is a well-known example…

计算机视觉与模式识别 · 计算机科学 2023-05-24 Kyoungmin Han , Minsik Lee

Contrastive Learning has recently received interest due to its success in self-supervised representation learning in the computer vision domain. However, the origins of Contrastive Learning date as far back as the 1990s and its development…

机器学习 · 计算机科学 2020-10-29 Phuc H. Le-Khac , Graham Healy , Alan F. Smeaton

Contrastive learning (CL) benefits the training of sequential recommendation models with informative self-supervision signals. Existing solutions apply general sequential data augmentation strategies to generate positive pairs and encourage…

信息检索 · 计算机科学 2024-03-19 Peilin Zhou , Jingqi Gao , Yueqi Xie , Qichen Ye , Yining Hua , Jae Boum Kim , Shoujin Wang , Sunghun Kim

Learning sentence embeddings from dialogues has drawn increasing attention due to its low annotation cost and high domain adaptability. Conventional approaches employ the siamese-network for this task, which obtains the sentence embeddings…

计算与语言 · 计算机科学 2021-09-28 Che Liu , Rui Wang , Jinghua Liu , Jian Sun , Fei Huang , Luo Si

In recent years, the integration of non-topological space modeling with temporal learning methods has emerged as an effective approach for capturing spatio-temporal information in non-Euclidean graphs. However, most existing methods rely on…

机器学习 · 计算机科学 2026-05-08 Mei Wu , Wenchao Weng , Wenxin Su , Wenjie Tang , Wei Zhou

Self-supervised learning converts raw perceptual data such as images to a compact space where simple Euclidean distances measure meaningful variations in data. In this paper, we extend this formulation by adding additional geometric…

机器学习 · 计算机科学 2023-06-27 Sharut Gupta , Joshua Robinson , Derek Lim , Soledad Villar , Stefanie Jegelka

Sequential recommendation models, models that learn from chronological user-item interactions, outperform traditional recommendation models in many settings. Despite the success of sequential recommendation models, their robustness has…

信息检索 · 计算机科学 2024-01-17 Juntao Tan , Shelby Heinecke , Zhiwei Liu , Yongjun Chen , Yongfeng Zhang , Huan Wang

Contrastive learning has been the dominant approach to train state-of-the-art sentence embeddings. Previous studies have typically learned sentence embeddings either through the use of human-annotated natural language inference (NLI) data…

计算与语言 · 计算机科学 2023-10-25 Junlei Zhang , Zhenzhong Lan , Junxian He

Contrastive learning has shown promising potential for learning robust representations by utilizing unlabeled data. However, constructing effective positive-negative pairs for contrastive learning on facial behavior datasets remains…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Xiang Zhang , Taoyue Wang , Xiaotian Li , Huiyuan Yang , Lijun Yin

In continual learning (CL), a learner is faced with a sequence of tasks, arriving one after the other, and the goal is to remember all the tasks once the continual learning experience is finished. The prior art in CL uses episodic memory,…

机器学习 · 计算机科学 2020-12-09 Arslan Chaudhry , Naeemullah Khan , Puneet K. Dokania , Philip H. S. Torr

Continual learning has been developed using standard supervised contrastive loss from the perspective of feature learning. Due to the data imbalance during the training, there are still challenges in learning better representations. In this…

机器学习 · 计算机科学 2023-06-06 Bilan Gao , YoungBin Kim

Visual-only self-supervised learning has achieved significant improvement in video representation learning. Existing related methods encourage models to learn video representations by utilizing contrastive learning or designing specific…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Jinyu Liu , Ying Cheng , Yuejie Zhang , Rui-Wei Zhao , Rui Feng

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…

Designed as extremely deep architectures, deep residual networks which provide a rich visual representation and offer robust convergence behaviors have recently achieved exceptional performance in numerous computer vision problems. Being…

计算机视觉与模式识别 · 计算机科学 2017-04-13 T. Hoang Ngan Le , Chi Nhan Duong , Ligong Han , Khoa Luu , Marios Savvides , Dipan Pal