Paper Info
Title
Community detection by popularity based models for authored networked data
Abstract
Community detection has emerged as an attractive topic due to the increasing need to understand and manage the networked data of tremendous magnitude. Networked data usually consists of links between the entities and the attributes for describing the entities. Various approaches have been proposed for detecting communities by utilizing the link information and/or attribute information. In this work, we study the problem of community detection for networked data with additional authorship information. By authorship, each entity in the network is authored by another type of entities (e.g., wiki pages are edited by users, products are purchased by customers), to which we refer as authors. Communities of entities are affected by their authors, e.g., two entities that are associated with the same author tend to belong to the same community. Therefore leveraging the authorship information would help us better detect the communities in the networked data. However, it also brings new challenges to community detection. The foremost question is how to model the correlation between communities and authorships. In this work, we address this question by proposing probabilistic models based on the popularity link model [1], which is demonstrated to yield encouraging results for community detection. We employ two methods for modeling the authorships: (i) the first one generates the authorships independently from links by community memberships and popularities of authors by analogy of the popularity link model; (ii) the second one models the links between entities based on authorships together with community memberships and popularities of nodes, which is an analog of previous author-topic model. Upon the basic models, we explore several extensions including (i) we model the community memberships of authors by that of their authored entities to reduce the number of redundant parameters; and (ii) we model the communities memberships of entities and/or authors by their attributes us- ng a discriminative approach. We demonstrate the effectiveness of the proposed models by empirical studies.
Year
DOI
Venue
2013
10.1145/2492517.2492520
ASONAM
Keywords
DocType
Citations 
probabilistic models,entities communities,additional authorship information,community membership,networked data community detection,popularity based models,communities membership,author-topic model,popularity link model,networked data,discriminative approach,authorship information,authored networked data,basic model,community memberships,data mining,social networking (online),previous author-topic model,community detection,probability,probabilistic model,distributed algorithms,graph clustering
Conference
2
PageRank 
References 
Authors
0.37
21
3
Name
Order
Citations
PageRank
Tianbao Yang191170.35
Prakash Mandaym Comar220.37
Linli Xu379042.51