Abstract
Google+ (G+ in short) is a directed online social network where nodes have either reciprocal (bidirectional) edges or parasocial (one-way) edges. As reciprocal edges represent strong social ties, we study the core structure of the subgraph formed by them, referred to as the reciprocal network of G+. We develop an effective three-step procedure to hierarchically extract and unfold the core structure of this reciprocal network. This procedure builds up and generalizes ideas from the existing k-shell decomposition and clique percolation approaches, and produces higher-level representations of the core structure of the G+ reciprocal network. Our analysis shows that there are seven subgraphs (“communities”) comprising of dense clusters of cliques lying at the center of the core structure of the G+ reciprocal network, through which other communities of cliques are richly connected. Together they form the core to which “peripheral” sparse subgraphs are attached.
Original language | English (US) |
---|---|
Title of host publication | Combinatorial Optimization and Applications - 10th International Conference, COCOA 2016, Proceedings |
Editors | Minming Li, Lusheng Wang, T-H. Hubert Chan |
Publisher | Springer Verlag |
Pages | 763-771 |
Number of pages | 9 |
ISBN (Print) | 9783319487489 |
DOIs | |
State | Published - 2016 |
Event | 10th Annual International Conference on Combinatorial Optimization and Applications, COCOA 2016 - Hong Kong, China Duration: Dec 16 2016 → Dec 18 2016 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
---|---|
Volume | 10043 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Other
Other | 10th Annual International Conference on Combinatorial Optimization and Applications, COCOA 2016 |
---|---|
Country/Territory | China |
City | Hong Kong |
Period | 12/16/16 → 12/18/16 |
Bibliographical note
Funding Information:This research was supported in part by DoD ARO MURI Award W911NF-12-1-0385, DTRA grant HDTRA1- 14-1-0040 and NSF grant CNS-1411636. We thank the authors of [] for the datasets.
Publisher Copyright:
© Springer International Publishing AG 2016.
Keywords
- Google+
- Network core
- Reciprocal network
- Reciprocity