Title
Graph Property Preservation under Community-Based Sampling.
Abstract
With the explosion of graph scale of social networks, it becomes increasingly impractical to study the original large graph directly. Being able to derive a representative sample of the original graph, graph sampling provides an efficient solution for social network analysis. We expect this sample could preserve some important graph properties and represent the original graph well. If one algorithm relies on the preserved properties, we can expect that it gives similar output on the original graph and the sampled graph. This leads to a systematic way to accelerate a class of graph algorithms. Our work is based on the idea of stratified sampling [14], a widely used technique in statistics. We propose a heuristic approach to achieve efficient graph sampling based on community structure of social networks. With the aid of ground-truth of communities available in social networks, we find out that sampling from communities preserves community-related graph properties very well. The experimental results show that our framework improves the performance of traditional graph sampling algorithms and therefore, is an effective method of graph sampling.
Year
DOI
Venue
2015
10.1109/GLOCOM.2015.7417471
IEEE Global Communications Conference
Keywords
Field
DocType
CBS sampling,graph property preservation,graph algorithm acceleration
Heuristic,Social network,Algorithm design,Graph property,Computer science,Social network analysis,Theoretical computer science,Stratified sampling,Sampling (statistics),Graph (abstract data type)
Conference
ISSN
Citations 
PageRank 
2334-0983
1
0.35
References 
Authors
6
3
Name
Order
Citations
PageRank
Ruohan Gao1255.91
Pili Hu2445.31
Wing-cheong Lau363361.89