Title
Communities Found by Users--not Algorithms: Comparing Human and Algorithmically Generated Communities
Abstract
Many algorithms have been created to automatically detect community structures in social networks. These algorithms have been studied from the perspective of optimisation extensively. However, which community finding algorithm most closely matches the human notion of communities? In this paper, we conduct a user study to address this question. In our experiment, users collected their own Facebook network and manually annotated it, indicating their social communities. Given this annotation, we run state-of-the-art community finding algorithms on the network and use Normalised Mutual Information (NMI) to compare annotated communities with automatically detected ones. Our results show that the Infomap algorithm has the greatest similarity to user defined communities, with Girvan-Newman and Louvain algorithms also performing well.
Year
DOI
Venue
2016
10.1145/2858036.2858071
human factors in computing systems
Keywords
Field
DocType
Social Media/Online Communities, Visualisation, Quantitative Methods, Lab Study, Empirical study that tells us about people
Community finding,World Wide Web,Annotation,Social network,Computer science,Visualization,Algorithm,Mutual information,Multimedia
Conference
ISBN
Citations 
PageRank 
978-1-4503-3362-7
2
0.36
References 
Authors
9
2
Name
Order
Citations
PageRank
Alexandra Lee162.07
Daniel Archambault270539.10