Growing network model for community with group structure

Jae Dong Noh, Hyeong Chai Jeong, Yong Yeol Ahn, Hawoong Jeong

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


We propose a growing network model for a community with a group structure. The community consists of individual members and groups, gatherings of members. The community grows as a new member is introduced by an existing member at each time step. The new member then creates a new group or joins one of the groups of the introducer. We investigate the emerging community structure analytically and numerically. The group size distribution shows a power-law distribution for a variety of growth rules, while the activity distribution follows an exponential or a power law depending on the details of the growth rule. We also present an analysis of empirical data from online communities the "Groups" in and the "Cafe" in, which show a power-law distribution for a wide range of group sizes.

Original languageEnglish
Article number036131
JournalPhysical Review E
Issue number3
StatePublished - Mar 2005


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