Authoritative sources in a hyperlinked environment
Journal of the ACM (JACM)
BlogRank: ranking weblogs based on connectivity and similarity features
AAA-IDEA '06 Proceedings of the 2nd international workshop on Advanced architectures and algorithms for internet delivery and applications
Expertise networks in online communities: structure and algorithms
Proceedings of the 16th international conference on World Wide Web
Discovering authorities in question answer communities by using link analysis
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Blog Community Discovery and Evolution Based on Mutual Awareness Expansion
WI '07 Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence
Finding high-quality content in social media
WSDM '08 Proceedings of the 2008 International Conference on Web Search and Data Mining
Identifying the influential bloggers in a community
WSDM '08 Proceedings of the 2008 International Conference on Web Search and Data Mining
Finding the right facts in the crowd: factoid question answering over social media
Proceedings of the 17th international conference on World Wide Web
EigenRank: a ranking-oriented approach to collaborative filtering
Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval
Introduction to Information Retrieval
Introduction to Information Retrieval
WI-IAT '08 Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 01
Learning to recognize reliable users and content in social media with coupled mutual reinforcement
Proceedings of the 18th international conference on World wide web
Ranking user-created contents by search user's inclination in online communities
Proceedings of the 18th international conference on World wide web
The SocialTrust framework for trusted social information management: Architecture and algorithms
Information Sciences: an International Journal
Separating the reputation and the sociability of online community users
Proceedings of the 2010 ACM Symposium on Applied Computing
User comments for news recommendation in forum-based social media
Information Sciences: an International Journal
The eigenrumor algorithm for calculating contributions in cyberspace communities
Trusting Agents for Trusting Electronic Societies
Towards a Relevant and Diverse Search of Social Images
IEEE Transactions on Multimedia
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Users' posts receive feedback from other users in the form of comments, trackback, or recommendation in social media. These interactions form a graph in which the vertices represent a set of users, while the edges represent a set of feedback. Thus, the problem of users' rankings can be approached in terms of the link analysis of the social interactions between the users themselves within this graph. Link analysis algorithms, such as PageRank and HITS, have often been applied for users' rankings, especially for users' reputation, but no consideration has been given to how the user's sociability can affect the user's reputation. We propose two factors that affect the score of every user, the user's reputation, and the user's sociability, to address this problem. We present novel schemes that can effectively and separately estimate the reputation and sociability of the users. Furthermore, we present schemes to measure the degree of the user's sociability in a social network. Our experiments show that: (1) our schemes can effectively separate the user's pure reputation from the user's sociability (2) the pure reputation is capable of producing superior user ranking results than can previous work (3) the degree of user sociability for each social network varies and reveals significant characteristics of the corresponding network.