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Graph vertex embeddings based on random walks have become increasingly influential in recent years, showing good performance in several tasks as they efficiently transform a graph into a more computationally digestible format while…

机器学习 · 统计学 2021-07-22 Dominik Kloepfer , Angelica I. Aviles-Rivero , Daniel Heydecker

Many real-world problems are naturally modeled as heterogeneous graphs, where nodes and edges represent multiple types of entities and relations. Existing learning models for heterogeneous graph representation usually depend on the…

Node embedding is a powerful approach for representing the structural role of each node in a graph. $\textit{Node2vec}$ is a widely used method for node embedding that works by exploring the local neighborhoods via biased random walks on…

社会与信息网络 · 计算机科学 2022-05-17 Renming Liu , Matthew Hirn , Arjun Krishnan

Node embedding learns low-dimensional vectors for nodes in the graph. Recent state-of-the-art embedding approaches take Personalized PageRank (PPR) as the proximity measure and factorize the PPR matrix or its adaptation to generate…

机器学习 · 计算机科学 2024-05-31 Xingyi Zhang , Zixuan Weng , Sibo Wang

Network embedding algorithms are able to learn latent feature representations of nodes, transforming networks into lower dimensional vector representations. Typical key applications, which have effectively been addressed using network…

机器学习 · 计算机科学 2018-09-10 Duong Nguyen , Fragkiskos D. Malliaros

Network embedding which encodes all vertices in a network as a set of numerical vectors in accordance with it's local and global structures, has drawn widespread attention. Network embedding not only learns significant features of a…

物理与社会 · 物理学 2017-04-20 Weiwei Gu , Li Gong , Xiandao Lou , Jiang Zhang

Finding the reduced-dimensional structure is critical to understanding complex networks. Existing approaches such as spectral clustering are applicable only when the full network is explicitly observed. In this paper, we focus on the online…

机器学习 · 计算机科学 2017-12-13 Lin F. Yang , Vladimir Braverman , Tuo Zhao , Mengdi Wang

What is the best way to describe a user in a social network with just a few numbers? Mathematically, this is equivalent to assigning a vector representation to each node in a graph, a process called graph embedding. We propose a novel…

社会与信息网络 · 计算机科学 2017-02-21 Siheng Chen , Sufeng Niu , Leman Akoglu , Jelena Kovačević , Christos Faloutsos

Learning good quality neural graph embeddings has long been achieved by minimizing the point-wise mutual information (PMI) for co-occurring nodes in simulated random walks. This design choice has been mostly popularized by the direct…

社会与信息网络 · 计算机科学 2022-08-29 Asan Agibetov

Node embedding refers to techniques that generate low-dimensional vector representations of nodes in a graph while preserving specific properties of the nodes. A key challenge in the field is developing scalable methods that can preserve…

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

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

Complex networks represented as node adjacency matrices constrains the application of machine learning and parallel algorithms. To address this limitation, network embedding (i.e., graph representation) has been intensively studied to learn…

社会与信息网络 · 计算机科学 2019-10-24 Huang Zhenhua , Wang Zhenyu , Zhang Rui , Zhao Yangyang , Xie Xiaohui , Sharad Mehrotra

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…

A deep community in a graph is a connected component that can only be seen after removal of nodes or edges from the rest of the graph. This paper formulates the problem of detecting deep communities as multi-stage node removal that…

社会与信息网络 · 计算机科学 2015-10-28 Pin-Yu Chen , Alfred O. Hero

Networks are one of the most powerful structures for modeling problems in the real world. Downstream machine learning tasks defined on networks have the potential to solve a variety of problems. With link prediction, for instance, one can…

机器学习 · 计算机科学 2019-11-27 Nino Arsov , Georgina Mirceva

Community detection is a fundamental task in data analysis, and block models provide an approach for identifying a wide variety of community structures while offering high interpretability. The degree-corrected block model (DCBM) is an…

社会与信息网络 · 计算机科学 2026-04-29 Alexandra Dache , Arnaud Vandaele , Nicolas Gillis

We present a new algorithm for community detection. The algorithm uses random walks to embed the graph in a space of measures, after which a modification of $k$-means in that space is applied. The algorithm is therefore fast and easily…

机器学习 · 计算机科学 2016-05-11 Mark Kozdoba , Shie Mannor

Network embedding aims to represent each node in a network as a low-dimensional feature vector that summarizes the given node's (extended) network neighborhood. The nodes' feature vectors can then be used in various downstream machine…

社会与信息网络 · 计算机科学 2018-05-22 Shawn Gu , Tijana Milenkovic

Node embeddings are a paradigm in non-parametric graph representation learning, where graph nodes are embedded into a given vector space to enable downstream processing. State-of-the-art node-embedding algorithms, such as DeepWalk and…

机器学习 · 计算机科学 2025-11-25 Jan Niklas Böhm , Marius Keute , Alica Guzmán , Sebastian Damrich , Andrew Draganov , Dmitry Kobak