Title
Efficient Algorithms for Densest Subgraph Discovery.
Abstract
Densest subgraph discovery (DSD) is a fundamental problem in graph mining. It has been studied for decades, and is widely used in various areas, including network science, biological analysis, and graph databases. Given a graph G, DSD aims to find a subgraph D of G with the highest density (e.g., the number of edges over the number of vertices in D). Because DSD is difficult to solve, we propose a new solution paradigm in this paper. Our main observation is that the densest subgraph can be accurately found through a k-core (a kind of dense subgraph of G), with theoretical guarantees. Based on this intuition, we develop efficient exact and approximation solutions for DSD. Moreover, our solutions are able to find the densest subgraphs for a wide range of graph density definitions, including clique-based- and general pattern-based density. We have performed extensive experimental evaluation on both real and synthetic datasets. Our results show that our algorithms are up to four orders of magnitude faster than existing approaches.
Year
DOI
Venue
2019
10.14778/3342263.3342645
Proceedings of the VLDB Endowment
Field
DocType
Volume
Network science,Graph,Graph database,Vertex (geometry),Clique,Computer science,Algorithm,Intuition,Dense graph
Journal
abs/1906.00341
Issue
ISSN
Citations 
11
2150-8097
9
PageRank 
References 
Authors
0.47
0
5
Name
Order
Citations
PageRank
Yixiang Fang122723.06
Kaiqiang Yu290.81
Reynold Cheng33069154.13
Laks V. S. Lakshmanan46216696.78
Xuemin Lin55585307.32