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Continual Graph Learning (CGL), which aims to accommodate new tasks over evolving graph data without forgetting prior knowledge, is garnering significant research interest. Mainstream solutions adopt the memory replay-based idea, ie,…

机器学习 · 计算机科学 2025-02-11 Qi Wang , Tianfei Zhou , Ye Yuan , Rui Mao

With large-scale well-labeled datasets, deep learning has shown significant success in medical image segmentation. However, it is challenging to acquire abundant annotations in clinical practice due to extensive expertise requirements and…

图像与视频处理 · 电气工程与系统科学 2022-10-20 Ziyuan Zhao , Jinxuan Hu , Zeng Zeng , Xulei Yang , Peisheng Qian , Bharadwaj Veeravalli , Cuntai Guan

Graph contrastive learning (GCL) shows great potential in unsupervised graph representation learning. Data augmentation plays a vital role in GCL, and its optimal choice heavily depends on the downstream task. Many GCL methods with…

机器学习 · 计算机科学 2023-05-30 Xin Xiong , Furao Shen , Xiangyu Wang , Jian Zhao

Advanced persistent threats (APTs) are stealthy and multi-stage, making single-point defenses (e.g., malware- or traffic-based detectors) ill-suited to capture long-range and cross-entity attack semantics. Provenance-graph analysis has…

密码学与安全 · 计算机科学 2026-01-14 Mingqi Lv , Shanshan Zhang , Haiwen Liu , Tieming Chen , Tiantian Zhu

With the prosperity of contrastive learning for visual representation learning (VCL), it is also adapted to the graph domain and yields promising performance. However, through a systematic study of various graph contrastive learning (GCL)…

机器学习 · 计算机科学 2023-11-07 Xiaojun Guo , Yifei Wang , Zeming Wei , Yisen Wang

Real-world heterogeneous graphs are inherently noisy and usually not in the optimal graph structures for downstream tasks, which often adversely affects the performance of GRL models in downstream tasks. Although Graph Structure Learning…

机器学习 · 计算机科学 2026-04-08 He Zhao , Zhiwei Zeng , Yongwei Wang , Chunyan Miao

In this paper, we study the problem of unsupervised graph representation learning by harnessing the control properties of dynamical networks defined on graphs. Our approach introduces a novel framework for contrastive learning, a widely…

机器学习 · 计算机科学 2024-04-19 Obaid Ullah Ahmad , Anwar Said , Mudassir Shabbir , Waseem Abbas , Xenofon Koutsoukos

Graph Neural Networks (GNNs) have recently gained widespread attention as a successful tool for analyzing graph-structured data. However, imperfect graph structure with noisy links lacks enough robustness and may damage graph…

机器学习 · 计算机科学 2025-03-25 Xianlin Zeng , Yufeng Wang , Yuqi Sun , Guodong Guo , Wenrui Ding , Baochang Zhang

Most modern recommender systems predict users preferences with two components: user and item embedding learning, followed by the user-item interaction modeling. By utilizing the auxiliary review information accompanied with user ratings,…

信息检索 · 计算机科学 2022-05-17 Jie Shuai , Kun Zhang , Le Wu , Peijie Sun , Richang Hong , Meng Wang , Yong Li

Foundation models have achieved great success in natural language processing (NLP) and computer vision (CV). Their success largely stems from the ability to integrate multi-domain knowledge in pre-training and transfer it to target domains.…

计算与语言 · 计算机科学 2025-07-01 Zihao Zhao , Xinlong Zhai , Jinyu Yang , Chuan Shi

Recent years have seen a rapid growth of utilizing graph neural networks (GNNs) in the biomedical domain for tackling drug-related problems. However, like any other deep architectures, GNNs are data hungry. While requiring labels in real…

生物物理 · 物理学 2022-05-03 Mengying Sun , Jing Xing , Huijun Wang , Bin Chen , Jiayu Zhou

Recently many efforts have been devoted to applying graph neural networks (GNNs) to molecular property prediction which is a fundamental task for computational drug and material discovery. One of major obstacles to hinder the successful…

机器学习 · 计算机科学 2021-09-27 Shuangli Li , Jingbo Zhou , Tong Xu , Dejing Dou , Hui Xiong

With the rise of contrastive learning, unsupervised graph representation learning has been booming recently, even surpassing the supervised counterparts in some machine learning tasks. Most of existing contrastive models for graph…

机器学习 · 计算机科学 2021-12-16 Chunyang Zhang , Hongyu Yao , C. L. Philip Chen , Yuena Lin

Though graph representation learning (GRL) has made significant progress, it is still a challenge to extract and embed the rich topological structure and feature information in an adequate way. Most existing methods focus on local structure…

机器学习 · 计算机科学 2022-12-09 Ruiyi Fang , Liangjian Wen , Zhao Kang , Jianzhuang Liu

Discriminative feature representation of person image is important for person re-identification (Re-ID) task. Recently, attributes have been demonstrated beneficially in guiding for learning more discriminative feature representations for…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Bo Jiang , Xixi Wang , Jin Tang

Predicting events such as political protests, flu epidemics, and criminal activities is crucial to proactively taking necessary measures and implementing required responses to address emerging challenges. Capturing contextual information…

社会与信息网络 · 计算机科学 2024-04-25 Muhammed Ifte Khairul Islam , Khaled Mohammed Saifuddin , Tanvir Hossain , Esra Akbas

Inspired by the successful application of contrastive learning on graphs, researchers attempt to impose graph contrastive learning approaches on heterogeneous information networks. Orthogonal to homogeneous graphs, the types of nodes and…

机器学习 · 计算机科学 2023-09-06 Yuanyuan Guo , Yu Xia , Rui Wang , Rongcheng Duan , Lu Li , Jiangmeng Li

Contrastive deep graph clustering (CDGC) leverages the power of contrastive learning to group nodes into different clusters. The quality of contrastive samples is crucial for achieving better performance, making augmentation techniques a…

机器学习 · 计算机科学 2024-08-07 Xihong Yang , Erxue Min , Ke Liang , Yue Liu , Siwei Wang , Sihang Zhou , Huijun Wu , Xinwang Liu , En Zhu

In this paper, we propose an augmentation-free graph contrastive learning framework, namely ACTIVE, to solve the problem of partial multi-view clustering. Notably, we suppose that the representations of similar samples (i.e., belonging to…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Yiming Wang , Dongxia Chang , Zhiqiang Fu , Jie Wen , Yao Zhao

Missing node attributes is a common problem in real-world graphs. Graph neural networks have been demonstrated power in graph representation learning while their performance is affected by the completeness of graph information. Most of them…

机器学习 · 计算机科学 2022-02-17 Zhixian Chen , Tengfei Ma , Yangqiu Song , Yang Wang