{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T00:28:45Z","timestamp":1777854525014,"version":"3.51.4"},"reference-count":60,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2016,7,11]],"date-time":"2016-07-11T00:00:00Z","timestamp":1468195200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Information Science"],"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:p>Opinion leaders are the influential people who are able to shape the minds and thoughts of other people in their society. Finding opinion leaders is an important task in various domains ranging from marketing to politics. In this paper, a new effective algorithm for finding opinion leaders in a given domain in online social networks is introduced. The proposed algorithm, named OLFinder, detects the main topics of discussion in a given domain, calculates a competency and a popularity score for each user in the given domain, then calculates a probability for being an opinion leader in that domain by using the competency and the popularity scores and finally ranks the users of the social network based on their probability of being an opinion leader. Our experimental results show that OLFinder outperforms other methods based on precision-recall, average precision and P@N measures.<\/jats:p>","DOI":"10.1177\/0165551515605217","type":"journal-article","created":{"date-parts":[[2015,9,21]],"date-time":"2015-09-21T22:23:34Z","timestamp":1442874214000},"page":"659-674","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":57,"title":["OLFinder: Finding opinion leaders in online social networks"],"prefix":"10.1177","volume":"42","author":[{"given":"Abolfazl","family":"Aleahmad","sequence":"first","affiliation":[{"name":"University of Tehran, Iran"}]},{"given":"Payam","family":"Karisani","sequence":"additional","affiliation":[{"name":"University of Tehran, Iran"}]},{"given":"Maseud","family":"Rahgozar","sequence":"additional","affiliation":[{"name":"University of Tehran, Iran"}]},{"given":"Farhad","family":"Oroumchian","sequence":"additional","affiliation":[{"name":"University of Wollongong in Dubai, UAE"}]}],"member":"179","published-online":{"date-parts":[[2016,7,11]]},"reference":[{"key":"bibr1-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1002\/asi.22790"},{"key":"bibr2-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1002\/asi.22762"},{"issue":"3","key":"bibr3-0165551515605217","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1002\/asi.21461","volume":"62","author":"Yan E","year":"2011","journal-title":"Journal of the American Society for Information Science and Technology"},{"key":"bibr4-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1186\/s12859-015-0536-x"},{"key":"bibr5-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1509\/jmkr.47.4.643"},{"key":"bibr6-0165551515605217","first-page":"1","volume-title":"31st International Conference on Information Systems (ICIS)","author":"Heidemann J","year":"2010"},{"key":"bibr7-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1016\/j.dss.2009.12.006"},{"key":"bibr8-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1300\/J366v05n01_04"},{"key":"bibr9-0165551515605217","first-page":"1","author":"Oestreicher-Singer G","year":"2009","journal-title":"Proceedings of International Conference on Information Systems (ICIS)"},{"key":"bibr10-0165551515605217","first-page":"1","author":"Berger J","year":"2013","journal-title":"The International Centre for The Study of Radicalisation and Political Violence"},{"key":"bibr11-0165551515605217","first-page":"159","volume-title":"Intelligence and Security Informatics (ISI), 2012 IEEE International Conference","author":"Wingyan C","year":"2012"},{"key":"bibr12-0165551515605217","volume-title":"Diffusion of Innovations","author":"Rogers EM","year":"2003","edition":"5"},{"key":"bibr13-0165551515605217","volume-title":"The Influentials: One American in Ten Tells the Other Nine How to Vote, Where to Eat, and What to Buy","author":"Keller E","year":"2003"},{"key":"bibr14-0165551515605217","volume-title":"The People\u2019s Choice: How the Voter Makes Up His Mind in a Presidential Campaign","author":"Lazarsfeld PF","year":"1948"},{"key":"bibr15-0165551515605217","volume-title":"The Influentials: People Who Influence People","author":"Weimann G","year":"1994"},{"key":"bibr16-0165551515605217","volume-title":"Personal Influence, the Part Played by People in the Flow of Mass Communications","author":"Katz E","year":"1970"},{"key":"bibr17-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-11382-1_24"},{"key":"bibr18-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1086\/267459"},{"issue":"6","key":"bibr19-0165551515605217","first-page":"147","volume":"44","author":"Dichter E","year":"1966","journal-title":"Harvard Business Review"},{"key":"bibr20-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/502512.502525"},{"key":"bibr21-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1016\/0378-8733(78)90021-7"},{"key":"bibr22-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1080\/0022250X.1972.9989806"},{"key":"bibr23-0165551515605217","unstructured":"Page L, Brin S, Motwani R, Winograd T. The PageRank Citation Ranking: Bringing Order to the Web. Stanford, CA: Stanford InfoLab, 1999, pp. 1\u201317."},{"key":"bibr24-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/324133.324140"},{"key":"bibr25-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1086\/518527"},{"key":"bibr26-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/1321440.1321588"},{"key":"bibr27-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1007\/s12599-013-0263-7"},{"key":"bibr28-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/1935826.1935845"},{"key":"bibr29-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1086\/226707"},{"key":"bibr30-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1023\/A:1011122126881"},{"key":"bibr31-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/956750.956769"},{"key":"bibr32-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1016\/j.eswa.2014.09.037"},{"key":"bibr33-0165551515605217","first-page":"10","volume-title":"International AAAI Conference on Weblogs and Social Media, Association for the Advancement of Artificial Intelligence","author":"Cha M","year":"2010"},{"key":"bibr34-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/1772690.1772751"},{"key":"bibr35-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/1718487.1718520"},{"key":"bibr36-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/2480362.2480726"},{"key":"bibr37-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1109\/CC.2013.6457533"},{"key":"bibr38-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/988672.988739"},{"key":"bibr39-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1016\/j.eswa.2013.08.033"},{"key":"bibr40-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/1557019.1557047"},{"key":"bibr41-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/2505515.2505626"},{"key":"bibr42-0165551515605217","first-page":"1468","volume-title":"Proceedings of the Fifth International Conference of the CLEF initiative","author":"Vilares D","year":"2014"},{"key":"bibr43-0165551515605217","first-page":"1458","volume-title":"Proceedings of the Fifth International Conference of the CLEF initiative","author":"Cossu J-V","year":"2014"},{"key":"bibr44-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1016\/0306-4573(88)90021-0"},{"key":"bibr45-0165551515605217","volume-title":"Opinion detection as a topic classification problem. Textual Information Access","author":"Torres-Moreno J","year":"2013"},{"key":"bibr46-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-37502-6_27"},{"key":"bibr47-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1109\/ICASSP.1988.196626"},{"key":"bibr48-0165551515605217","first-page":"1","volume-title":"International Conference on Learning Representations","author":"Mikolov T","year":"2013"},{"key":"bibr49-0165551515605217","first-page":"1547","volume-title":"Proceedings of the Fifth International Conference of the CLEF Initiative","author":"Villatoro-Tello E","year":"2014"},{"key":"bibr50-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1017\/S1351324912000010"},{"key":"bibr51-0165551515605217","first-page":"1537","author":"Jesus J","year":"2014","journal-title":"Proceedings of the Fifth International Conference of the CLEF Initiative"},{"key":"bibr52-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1038\/nphys1746"},{"key":"bibr53-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1145\/582415.582416"},{"key":"bibr54-0165551515605217","first-page":"993","volume":"3","author":"Blei DM","year":"2003","journal-title":"Journal of Machine Learning Research"},{"key":"bibr55-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0020648"},{"key":"bibr56-0165551515605217","volume-title":"Regression Analysis","author":"Freund R","year":"2006"},{"key":"bibr57-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-540-31865-1_15"},{"issue":"4","key":"bibr58-0165551515605217","first-page":"35","volume":"24","author":"Singhal A","year":"2001","journal-title":"Bulletin of the IEEE Computer Society Technical Committee on Data Engineering"},{"key":"bibr59-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1177\/0165551512438357"},{"key":"bibr60-0165551515605217","doi-asserted-by":"publisher","DOI":"10.1177\/0165551513508877"}],"container-title":["Journal of Information Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0165551515605217","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0165551515605217","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0165551515605217","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T23:09:19Z","timestamp":1777504159000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/0165551515605217"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,7,11]]},"references-count":60,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2016,10]]}},"alternative-id":["10.1177\/0165551515605217"],"URL":"https:\/\/doi.org\/10.1177\/0165551515605217","relation":{},"ISSN":["0165-5515","1741-6485"],"issn-type":[{"value":"0165-5515","type":"print"},{"value":"1741-6485","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,7,11]]}}}