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Graph instance contrastive learning has been proved as an effective task for Graph Neural Network (GNN) pre-training. However, one key issue may seriously impede the representative power in existing works: Positive instances created by…

机器学习 · 计算机科学 2022-06-27 Xueyi Liu , Yu Rong , Tingyang Xu , Fuchun Sun , Wenbing Huang , Junzhou Huang

Although hypergraph neural networks (HGNNs) have emerged as a powerful framework for analyzing complex datasets, their practical performance often remains limited. On one hand, existing networks typically employ a single type of attention…

机器学习 · 计算机科学 2025-11-14 Murong Yang , Shihui Ying , Yue Gao , Xin-Jian Xu

Temporal networks are effective in capturing the evolving interactions of networks over time, such as social networks and e-commerce networks. In recent years, researchers have primarily concentrated on developing specific model…

机器学习 · 计算机科学 2025-07-11 Ziyue Chen , Tongya Zheng , Mingli Song

Generative Adversarial Networks (GANs) have been used widely to generate large volumes of synthetic data. This data is being utilized for augmenting with real examples in order to train deep Convolutional Neural Networks (CNNs). Studies…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Binod Bhattarai , Seungryul Baek , Rumeysa Bodur , Tae-Kyun Kim

This research aims to develop kernel GNG, a kernelized version of the growing neural gas (GNG) algorithm, and to investigate the features of the networks generated by the kernel GNG. The GNG is an unsupervised artificial neural network that…

机器学习 · 计算机科学 2023-12-20 Kazuhisa Fujita

Synthetic images rendered from 3D CAD models are useful for augmenting training data for object recognition algorithms. However, the generated images are non-photorealistic and do not match real image statistics. This leads to a large…

计算机视觉与模式识别 · 计算机科学 2017-03-21 Xingchao Peng , Kate Saenko

With the increase in the learning capability of deep convolution-based architectures, various applications of such models have been proposed over time. In the field of anomaly detection, improvements in deep learning opened new prospects of…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Jin-Ha Lee , Marcella Astrid , Muhammad Zaigham Zaheer , Seung-Ik Lee

Graph Convolutional Network (GCN) has achieved extraordinary success in learning effective task-specific representations of nodes in graphs. However, regarding Heterogeneous Information Network (HIN), existing HIN-oriented GCN methods still…

机器学习 · 计算机科学 2021-09-09 Yaming Yang , Ziyu Guan , Jianxin Li , Wei Zhao , Jiangtao Cui , Quan Wang

Image retrieval methods based on CNN descriptors rely on metric learning from a large number of diverse examples of positive and negative image pairs. Domains, such as night-time images, with limited availability and variability of training…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Albert Mohwald , Tomas Jenicek , Ondřej Chum

A genome-wide association study (GWAS) correlates marker variation with trait variation in a sample of individuals. Each study subject is genotyped at a multitude of SNPs (single nucleotide polymorphisms) spanning the genome. Here we assume…

机器学习 · 统计学 2019-01-14 Kevin L. Keys , Gary K. Chen , Kenneth Lange

Heterogeneous domain adaptation (HDA) tackles the learning of cross-domain samples with both different probability distributions and feature representations. Most of the existing HDA studies focus on the single-source scenario. In reality,…

机器学习 · 计算机科学 2021-09-14 Yuan Yao , Xutao Li , Yu Zhang , Yunming Ye

Graph Neural Networks (GNNs) are widely used on a variety of graph-based machine learning tasks. For node-level tasks, GNNs have strong power to model the homophily property of graphs (i.e., connected nodes are more similar) while their…

机器学习 · 计算机科学 2022-04-26 Lun Du , Xiaozhou Shi , Qiang Fu , Xiaojun Ma , Hengyu Liu , Shi Han , Dongmei Zhang

The goal of unpaired image-to-image translation is to produce an output image reflecting the target domain's style while keeping unrelated contents of the input source image unchanged. However, due to the lack of attention to the content…

计算机视觉与模式识别 · 计算机科学 2021-11-22 Guanglei Yang , Hao Tang , Humphrey Shi , Mingli Ding , Nicu Sebe , Radu Timofte , Luc Van Gool , Elisa Ricci

Graph Convolutional Network (GCN) are widely used in Graph Anomaly Detection (GAD) due to their natural compatibility with graph structures, resulting in significant performance improvements. However, most researchers approach GAD as a…

机器学习 · 计算机科学 2024-11-05 Shelei Li , Yong Chai Tan , Tai Vincent

Recommendation systems have become indispensable in various online platforms, from e-commerce to streaming services. A fundamental challenge in this domain is learning effective embeddings from sparse user-item interactions. While…

信息检索 · 计算机科学 2025-10-13 Yansong Wang , Qihui Lin , Junjie Huang , Tao Jia

Graph convolutional neural network (GCN) has effectively boosted the multi-label image recognition task by introducing label dependencies based on statistical label co-occurrence of data. However, in previous methods, label correlation is…

计算机视觉与模式识别 · 计算机科学 2020-08-20 Yun Wang , Tong Zhang , Zhen Cui , Chunyan Xu , Jian Yang

How can we find meaningful clusters in a graph robustly against noise edges? Graph clustering (i.e., dividing nodes into groups of similar ones) is a fundamental problem in graph analysis with applications in various fields. Recent studies…

机器学习 · 计算机科学 2023-11-09 Hyeonsoo Jo , Fanchen Bu , Kijung Shin

The problem of learning the structure of a high dimensional graphical model from data has received considerable attention in recent years. In many applications such as sensor networks and proteomics it is often expensive to obtain samples…

机器学习 · 统计学 2016-04-08 Gautam Dasarathy , Aarti Singh , Maria-Florina Balcan , Jong Hyuk Park

Knowledge graph (KG) embedding is widely used in many downstream applications using KGs. Generally, since KGs contain only ground truth triples, it is necessary to construct arbitrary negative samples for representation learning of KGs.…

机器学习 · 计算机科学 2022-10-13 Sang-Hyun Je

Graph Domain Adaptation (GDA) transfers knowledge from labeled source graphs to unlabeled target graphs, addressing the challenge of label scarcity. However, existing GDA methods typically assume that both source and target graphs exhibit…

社会与信息网络 · 计算机科学 2026-02-10 Ruiyi Fang , Shuo Wang , Ruizhi Pu , Qiuhao Zeng , Hao Zheng , Ziyan Wang , Jiale Cai , Zhimin Mei , Song Tang , Charles Ling , Boyu Wang