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We study the problem of graph structure identification, i.e., of recovering the graph of dependencies among time series. We model these time series data as components of the state of linear stochastic networked dynamical systems. We assume…

机器学习 · 计算机科学 2023-06-29 Sérgio Machado , Anirudh Sridhar , Paulo Gil , Jorge Henriques , José M. F. Moura , Augusto Santos

Community detection, aiming to group the graph nodes into clusters with dense inner-connection, is a fundamental graph mining task. Recently, it has been studied on the heterogeneous graph, which contains multiple types of nodes and edges,…

社会与信息网络 · 计算机科学 2021-09-07 Linhao Luo , Yixiang Fang , Xin Cao , Xiaofeng Zhang , Wenjie Zhang

Most existing re-identification methods focus on learning robust and discriminative features with deep convolution networks. However, many of them consider content similarity separately and fail to utilize the context information of the…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Deyi Ji , Haoran Wang , Hanzhe Hu , Weihao Gan , Wei Wu , Junjie Yan

Learning on point cloud is eagerly in demand because the point cloud is a common type of geometric data and can aid robots to understand environments robustly. However, the point cloud is sparse, unstructured, and unordered, which cannot be…

计算机视觉与模式识别 · 计算机科学 2019-08-07 Kuangen Zhang , Ming Hao , Jing Wang , Clarence W. de Silva , Chenglong Fu

Using knowledge graphs to assist deep learning models in making recommendation decisions has recently been proven to effectively improve the model's interpretability and accuracy. This paper introduces an end-to-end deep learning model,…

信息检索 · 计算机科学 2024-04-11 Chen Li , Yang Cao , Ye Zhu , Debo Cheng , Chengyuan Li , Yasuhiko Morimoto

Click-Through Rate prediction is an important task in recommender systems, which aims to estimate the probability of a user to click on a given item. Recently, many deep models have been proposed to learn low-order and high-order feature…

信息检索 · 计算机科学 2019-04-30 Bin Liu , Ruiming Tang , Yingzhi Chen , Jinkai Yu , Huifeng Guo , Yuzhou Zhang

The information diffusion performance of GCN and its variant models is limited by the adjacency matrix, which can lower their performance. Therefore, we introduce a new framework for graph convolutional networks called Hybrid…

机器学习 · 计算机科学 2023-04-03 Zhi Yang , Kang Li , Haitao Gan , Zhongwei Huang , Ming Shi

Pose-based action recognition has drawn considerable attention recently. Existing methods exploit the joint positions to extract the body-part features from the activation map of the convolutional networks to assist human action…

计算机视觉与模式识别 · 计算机科学 2019-12-02 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

Many different classification tasks need to manage structured data, which are usually modeled as graphs. Moreover, these graphs can be dynamic, meaning that the vertices/edges of each graph may change during time. Our goal is to jointly…

机器学习 · 计算机科学 2019-08-20 Franco Manessi , Alessandro Rozza , Mario Manzo

Exploiting long-range contextual information is key for pixel-wise prediction tasks such as semantic segmentation. In contrast to previous work that uses multi-scale feature fusion or dilated convolutions, we propose a novel…

计算机视觉与模式识别 · 计算机科学 2020-08-27 Li Zhang , Xiangtai Li , Anurag Arnab , Kuiyuan Yang , Yunhai Tong , Philip H. S. Torr

This paper proposes a DNN-based system that detects multiple people from a single depth image. Our neural network processes a depth image and outputs a likelihood map in image coordinates, where each detection corresponds to a…

Graph convolutional networks (GCNs) are a powerful deep learning approach for graph-structured data. Recently, GCNs and subsequent variants have shown superior performance in various application areas on real-world datasets. Despite their…

机器学习 · 计算机科学 2020-07-07 Ming Chen , Zhewei Wei , Zengfeng Huang , Bolin Ding , Yaliang Li

Systematic relations between multiple objects that occur in various fields can be represented as networks. Real-world networks typically exhibit complex topologies whose structural properties are key factors in characterizing and further…

物理与社会 · 物理学 2021-04-09 Yoshihisa Tanaka , Ryosuke Kojima , Shoichi Ishida , Fumiyoshi Yamashita , Yasushi Okuno

Dynamic graphs capture evolving interactions between entities, such as in social networks, online learning platforms, and crowdsourcing projects. For dynamic graph modeling, dynamic graph neural networks (DGNNs) have emerged as a mainstream…

机器学习 · 计算机科学 2025-03-04 Xingtong Yu , Zhenghao Liu , Xinming Zhang , Yuan Fang

Graph Convolution Networks (GCNs), with their efficient ability to capture high-order connectivity in graphs, have been widely applied in recommender systems. Stacking multiple neighbor aggregation is the major operation in GCNs. It…

信息检索 · 计算机科学 2022-10-11 Kang Liu , Feng Xue , Xiangnan He , Dan Guo , Richang Hong

Sudden bursts of information cascades can lead to unexpected consequences such as extreme opinions, changes in fashion trends, and uncontrollable spread of rumors. It has become an important problem on how to effectively predict a cascade'…

社会与信息网络 · 计算机科学 2020-09-14 Zhixuan Xu , Minghui Qian , Xiaowei Huang , Jie Meng

Many irregular domains such as social networks, financial transactions, neuron connections, and natural language constructs are represented using graph structures. In recent years, a variety of graph neural networks (GNNs) have been…

机器学习 · 计算机科学 2021-05-03 Osman Asif Malik , Shashanka Ubaru , Lior Horesh , Misha E. Kilmer , Haim Avron

Recent advancements in graph representation learning have shifted attention towards dynamic graphs, which exhibit evolving topologies and features over time. The increased use of such graphs creates a paramount need for generative models…

机器学习 · 计算机科学 2024-12-23 Ryien Hosseini , Filippo Simini , Venkatram Vishwanath , Henry Hoffmann

In this paper, we propose the Graph-Learning-Dual Graph Convolutional Neural Network called GLDGCN based on the classic Graph Convolutional Neural Network(GCN) by introducing dual convolutional layer and graph learning layer. We apply…

机器学习 · 计算机科学 2024-04-26 Zibin Huang , Jun Xian

Graph convolutional networks (GCNs) have been successfully applied in node classification tasks of network mining. However, most of these models based on neighborhood aggregation are usually shallow and lack the "graph pooling" mechanism,…

社会与信息网络 · 计算机科学 2019-06-11 Fenyu Hu , Yanqiao Zhu , Shu Wu , Liang Wang , Tieniu Tan