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Conference Paper: Locating experts via online social networks

TitleLocating experts via online social networks
Authors
KeywordsAnalytical expressions
Information flows
Multi-step
Performance metrics
Random walk
Issue Date2010
PublisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104
Citation
The IEEE International Conference on Communications (ICC) 2010, Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE ICC, 2010, p. 1-5 How to Cite?
AbstractOnline social networking systems provide indirect access to a large number of people connected by multi-step chains of acquaintances, and plays an important role in the referrals for human information flow. In this paper, from a networking point of view, we study the problem of locating experts for relevant information via online social networks. We model the action of forwarding a question with random walk, adjusted by a node's awareness of the potential expertise of his immediate neighbours. Using the model we derive analytical expressions of the performance metrics of a referral session in terms of the nodes' awareness level of their neighbours and the percentage of nodes that may have answers to the posed question. We also utilize several real online social networks to study the modeled question-forwarding strategy, and find that the simulation results validate our analyses. ©2010 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/126120
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorXu, Ken_HK
dc.contributor.authorXie, Jen_HK
dc.contributor.authorLi, VOKen_HK
dc.date.accessioned2010-10-31T12:10:52Z-
dc.date.available2010-10-31T12:10:52Z-
dc.date.issued2010en_HK
dc.identifier.citationThe IEEE International Conference on Communications (ICC) 2010, Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE ICC, 2010, p. 1-5en_HK
dc.identifier.issn0536-1486en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126120-
dc.description.abstractOnline social networking systems provide indirect access to a large number of people connected by multi-step chains of acquaintances, and plays an important role in the referrals for human information flow. In this paper, from a networking point of view, we study the problem of locating experts for relevant information via online social networks. We model the action of forwarding a question with random walk, adjusted by a node's awareness of the potential expertise of his immediate neighbours. Using the model we derive analytical expressions of the performance metrics of a referral session in terms of the nodes' awareness level of their neighbours and the percentage of nodes that may have answers to the posed question. We also utilize several real online social networks to study the modeled question-forwarding strategy, and find that the simulation results validate our analyses. ©2010 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104-
dc.relation.ispartofProceedings of the IEEE International Conference on Communicationsen_HK
dc.rightsIEEE International Conference on Communications. Copyright © IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectAnalytical expressions-
dc.subjectInformation flows-
dc.subjectMulti-step-
dc.subjectPerformance metrics-
dc.subjectRandom walk-
dc.titleLocating experts via online social networksen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1550-3607&volume=&spage=1&epage=5&date=2010&atitle=Locating+experts+via+online+social+networks-
dc.identifier.emailLi, VOK:vli@eee.hku.hken_HK
dc.identifier.authorityLi, VOK=rp00150en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ICC.2010.5502193en_HK
dc.identifier.scopuseid_2-s2.0-77955357697en_HK
dc.identifier.hkuros181398en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955357697&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage5-
dc.description.otherThe IEEE International Conference on Communications (ICC) 2010, Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE ICC, 2010, p. 1-5-
dc.identifier.scopusauthoridXu, K=35101233700en_HK
dc.identifier.scopusauthoridXie, J=7402994697en_HK
dc.identifier.scopusauthoridLi, VOK=7202621685en_HK
dc.identifier.citeulike7574103-

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