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Contrastive learning (CL), which can extract the information shared between different contrastive views, has become a popular paradigm for vision representation learning. Inspired by the success in computer vision, recent work introduces CL…

机器学习 · 计算机科学 2022-12-15 Xumeng Gong , Cheng Yang , Chuan Shi

Context. Machine-Learning (ML) solves problems by learning patterns from data, with limited or no human guidance. In Astronomy, it is mainly applied to large observational datasets, e.g. for morphological galaxy classification. Aims. We…

星系天体物理 · 物理学 2016-04-27 Mario Pasquato , Chul Chung

Graph-based semi-supervised learning (GSSL) has long been a hot research topic. Traditional methods are generally shallow learners, based on the cluster assumption. Recently, graph convolutional networks (GCNs) have become the predominant…

机器学习 · 计算机科学 2025-08-07 Zheng Wang , Hongming Ding , Li Pan , Jianhua Li , Zhiguo Gong , Philip S. Yu

Accurate text recognition for historical documents can greatly advance the study and preservation of cultural heritage. Existing vision-language models (VLMs), however, are designed for modern, standardized texts and are not equipped to…

计算与语言 · 计算机科学 2025-09-25 Sina J. Semnani , Han Zhang , Xinyan He , Merve Tekgürler , Monica S. Lam

Computed tomography (CT) samples with pathological annotations are difficult to obtain. As a result, the computer-aided diagnosis (CAD) algorithms are trained on small datasets (e.g., LIDC-IDRI with 1,018 samples), limiting their accuracies…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Penghua Zhai , Enwei Zhu , Baolian Qi , Xin Wei , Jinpeng Li

Graph clustering discovers groups or communities within networks. Deep learning methods such as autoencoders (AE) extract effective clustering and downstream representations but cannot incorporate rich structural information. While Graph…

机器学习 · 计算机科学 2022-04-28 Gayan K. Kulatilleke , Marius Portmann , Shekhar S. Chandra

In classical frameworks as the Euclidean space, positive definite kernels as well as their analytic properties are explicitly available and can be incorporated directly in kernel-based learning algorithms. This is different if the…

数值分析 · 数学 2023-01-18 Wolfgang Erb

Iconography in art is the discipline that studies the visual content of artworks to determine their motifs and themes andto characterize the way these are represented. It is a subject of active research for a variety of purposes, including…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Federico Milani , Piero Fraternali

Graph Contrastive Learning (GCL) is a widely adopted approach in self-supervised graph representation learning, applying contrastive objectives to produce effective representations. However, current GCL methods primarily focus on capturing…

机器学习 · 计算机科学 2025-07-11 Dongxiao He , Yongqi Huang , Jitao Zhao , Xiaobao Wang , Zhen Wang

Machine learning (ML) models have been widely successful in the prediction of material properties. However, large labeled datasets required for training accurate ML models are elusive and computationally expensive to generate. Recent…

机器学习 · 计算机科学 2022-05-05 Rishikesh Magar , Yuyang Wang , Amir Barati Farimani

Graph contrastive learning (GCL) has emerged as a promising approach to enhance graph neural networks' (GNNs) ability to learn rich representations from unlabeled graph-structured data. However, current GCL models face challenges with…

机器学习 · 计算机科学 2025-03-11 Yujia Wu , Junyi Mo , Elynn Chen , Yuzhou Chen

Many complex engineering systems can be represented in a topological form, such as graphs. This paper utilizes a machine learning technique called Geometric Deep Learning (GDL) to aid designers with challenging, graph-centric design…

计算工程、金融与科学 · 计算机科学 2023-08-07 Anthony Sirico , Daniel R. Herber

Graph contrastive learning (GCL), as a self-supervised learning method, can solve the problem of annotated data scarcity. It mines explicit features in unannotated graphs to generate favorable graph representations for downstream tasks.…

机器学习 · 计算机科学 2024-04-02 Jinhuan Wang , Jiafei Shao , Zeyu Wang , Shanqing Yu , Qi Xuan , Xiaoniu Yang

Graph contrastive learning (GCL) has achieved remarkable success by following the computer vision paradigm of preserving absolute similarity between augmented views. However, this approach faces fundamental challenges in graphs due to their…

机器学习 · 计算机科学 2025-05-13 Zhiyuan Ning , Pengfei Wang , Ziyue Qiao , Pengyang Wang , Yuanchun Zhou

Contrastive learning has emerged as a powerful tool for graph representation learning. However, most contrastive learning methods learn features of graphs with fixed coarse-grained scale, which might underestimate either local or global…

机器学习 · 计算机科学 2022-10-24 Jun Wang , Weixun Li , Changyu Hou , Xin Tang , Yixuan Qiao , Rui Fang , Pengyong Li , Peng Gao , Guotong Xie

Contrastive learning (CL) approaches have gained great recognition as a very successful subset of self-supervised learning (SSL) methods. SSL enables learning from unlabeled data, a crucial step in the advancement of deep learning,…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Mohamed Hassan , Mohammad Wasil , Sebastian Houben

Urban morphological measures applied at a high-resolution of spatial analysis can yield a wealth of data describing characteristics of the urban environment in a substantial degree of detail; however, such forms of high-dimensional numeric…

物理与社会 · 物理学 2022-01-24 Gareth D. Simons

Among different existing graph self-supervised learning strategies, graph contrastive learning (GCL) has been one of the most prevalent approaches to this problem. Despite the remarkable performance those GCL methods have achieved, existing…

机器学习 · 计算机科学 2022-10-27 Qianlong Wen , Zhongyu Ouyang , Chunhui Zhang , Yiyue Qian , Yanfang Ye , Chuxu Zhang

Graph contrastive learning (GCL) often suffers from false negatives, which degrades the performance on downstream tasks. The existing methods addressing the false negative issue usually rely on human prior knowledge, still leading GCL to…

机器学习 · 计算机科学 2025-05-16 Yiyang Zhao , Chengpei Wu , Lilin Zhang , Ning Yang

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…

人工智能 · 计算机科学 2022-06-15 Jun Xia , Lirong Wu , Ge Wang , Jintao Chen , Stan Z. Li