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Recent works on representation learning for graph structured data predominantly focus on learning distributed representations of graph substructures such as nodes and subgraphs. However, many graph analytics tasks such as graph…

Graph clustering (or community detection) has long drawn enormous attention from the research on web mining and information networks. Recent literature on this topic has reached a consensus that node contents and link structures should be…

社会与信息网络 · 计算机科学 2017-12-25 Carl Yang , Mengxiong Liu , Zongyi Wang , Liyuan Liu , Jiawei Han

Community detection refers to the task of discovering groups of vertices sharing similar properties or functions so as to understand the network data. With the recent development of deep learning, graph representation learning techniques…

人工智能 · 计算机科学 2019-12-17 Yuting Jia , Qinqin Zhang , Weinan Zhang , Xinbing Wang

The increasing prevalence of network data in a vast variety of fields and the need to extract useful information out of them have spurred fast developments in related models and algorithms. Among the various learning tasks with network…

统计方法学 · 统计学 2023-04-10 Luyi Shen , Arash Amini , Nathaniel Josephs , Lizhen Lin

Community detection is a fundamental problem in network analysis, with applications in many diverse areas. The stochastic block model is a common tool for model-based community detection, and asymptotic tools for checking consistency of…

统计理论 · 数学 2015-03-18 Yunpeng Zhao , Elizaveta Levina , Ji Zhu

Understanding non-linear relationships among financial instruments has various applications in investment processes ranging from risk management, portfolio construction and trading strategies. Here, we focus on interconnectedness among…

计算金融 · 定量金融 2022-07-18 Bhaskarjit Sarmah , Nayana Nair , Dhagash Mehta , Stefano Pasquali

Detecting communities has long been popular in the research on networks. It is usually modeled as an unsupervised clustering problem on graphs, based on heuristic assumptions about community characteristics, such as edge density and node…

社会与信息网络 · 计算机科学 2018-04-24 Carl Yang , Hanqing Lu , Kevin Chen-Chuan Chang

Most of the existing graph embedding methods focus on nodes, which aim to output a vector representation for each node in the graph such that two nodes being "close" on the graph are close too in the low-dimensional space. Despite the…

社会与信息网络 · 计算机科学 2019-02-13 Vincent W. Zheng , Sandro Cavallari , Hongyun Cai , Kevin Chen-Chuan Chang , Erik Cambria

Embedding nodes of a large network into a metric (e.g., Euclidean) space has become an area of active research in statistical machine learning, which has found applications in natural and social sciences. Generally, a representation of a…

机器学习 · 统计学 2021-08-16 Owen G. Ward , Zhen Huang , Andrew Davison , Tian Zheng

Random walk based node embedding algorithms learn vector representations of nodes by optimizing an objective function of node embedding vectors and skip-bigram statistics computed from random walks on the network. They have been applied to…

机器学习 · 统计学 2021-09-13 Christy Lin , Daniel Sussman , Prakash Ishwar

Modern graph embedding procedures can efficiently process graphs with millions of nodes. In this paper, we propose GEMSEC -- a graph embedding algorithm which learns a clustering of the nodes simultaneously with computing their embedding.…

社会与信息网络 · 计算机科学 2019-07-26 Benedek Rozemberczki , Ryan Davies , Rik Sarkar , Charles Sutton

Graph embedding techniques have led to significant progress in recent years. However, present techniques are not effective enough to capture the patterns of networks. This paper propose neighbor2vec, a neighbor-based sampling strategy used…

社会与信息网络 · 计算机科学 2022-01-11 Zhiming Lin

Network embedding, which aims to learn low-dimensional representations of nodes, has been used for various graph related tasks including visualization, link prediction and node classification. Most existing embedding methods rely solely on…

社会与信息网络 · 计算机科学 2019-08-22 Palash Goyal , Homa Hosseinmardi , Emilio Ferrara , Aram Galstyan

Graph embeddings learn the structure of networks and represent it in low-dimensional vector spaces. Community structure is one of the features that are recognized and reproduced by embeddings. We show that an iterative procedure, in which a…

物理与社会 · 物理学 2024-07-30 Bianka Kovács , Sadamori Kojaku , Gergely Palla , Santo Fortunato

The study of complex networks is a significant development in modern science, and has enriched the social sciences, biology, physics, and computer science. Models and algorithms for such networks are pervasive in our society, and impact…

机器学习 · 计算机科学 2022-06-08 C. Seshadhri , Aneesh Sharma , Andrew Stolman , Ashish Goel

Graph embedding techniques, which learn low-dimensional representations of a graph, are achieving state-of-the-art performance in many graph mining tasks. Most existing embedding algorithms assign a single vector to each node, implicitly…

社会与信息网络 · 计算机科学 2020-10-22 Jisung Yoon , Kai-Cheng Yang , Woo-Sung Jung , Yong-Yeol Ahn

In real-world complex networks, understanding the dynamics of their evolution has been of great interest to the scientific community. Predicting future links is an essential task of social network analysis as the addition or removal of the…

社会与信息网络 · 计算机科学 2021-02-02 Akrati Saxena , George Fletcher , Mykola Pechenizkiy

Network embedding has attracted an increasing attention over the past few years. As an effective approach to solve graph mining problems, network embedding aims to learn a low-dimensional feature vector representation for each node of a…

社会与信息网络 · 计算机科学 2020-08-10 Xiao Shen , Fu-Lai Chung

Network embedding (NE) is playing a principal role in network mining, due to its ability to map nodes into efficient low-dimensional embedding vectors. However, two major limitations exist in state-of-the-art NE methods: role preservation…

社会与信息网络 · 计算机科学 2020-10-01 Yulong Pei , Xin Du , Jianpeng Zhang , George Fletcher , Mykola Pechenizkiy

Constructing latent vector representation for nodes in a network through embedding models has shown its practicality in many graph analysis applications, such as node classification, clustering, and link prediction. However, despite the…

人机交互 · 计算机科学 2018-08-29 Quan Li , Kristanto Sean Njotoprawiro , Hammad Haleem , Qiaoan Chen , Chris Yi , Xiaojuan Ma