****CALL FOR PAPERS**** 3rd Workshop on Information Credibility on the Web (WICOW 2009) in conjunction with 18th World Wide Web Conference 2009 April 20 or 21, 2009, Madrid, Spain http://www.dl.kuis.kyoto-u.ac.jp/wicow3 * WORKSHOP DESCRIPTION* As computers and computer networks become more common, a huge amount of information, such as that found in Web documents, has been accumulated and circulated. Such information gives many people a framework for organizing their private and professional lives. However, in general, the quality control of Web content is insufficient due to low publishing barriers. In result there is a lot of mistaken or unreliable information on the Web that can have detrimental effects on users. This situation calls for technology that would facilitate judging the trustworthiness of content and the quality and accuracy of the information that users encounter on the Web. Such technology should be able to handle a wide range of tasks: extracting credible information related to a given topic, organizing this information, detecting its provenance, clarifying background, facts, and other related opinions and the distribution of them, and so on. The problem of Web information reliability and Web data quality has become also apparent in the view of the recent emergence of many popular Web 2.0 applications, the growth of the so-called Deep Web and the ubiquity of Internet advertising. * TOPICS * The aim of this workshop is to provide a forum for discussion on issues related to information credibility criteria and the process of its evaluation. We invite submissions on any aspect of information credibility on the Web. Topics include, but are not limited to: Information credibility evaluation and its applications Web content analysis for credibility evaluation Author's intent detection Credibility of Web search results Search models and applications for trustworthy content on the Web Conflicting opinion detection Online media and news credibility Multimedia content credibility Credibility evaluation of user-generated content (e.g., Wikipedia, question answering sites) Information credibility evaluation in social networks and Web 2.0 applications Analysis of information dissemination on the Web (e.g., in blogosphere) Spatial and temporal aspects in information credibility on the Web Information credibility theory and fundamentals Estimation of information age, provenance and validity Estimation of author's and publisher's reputation Sociological and psychological aspects of information credibility estimation Users study for information credibility evaluation Persuasive technologies Information credibility in online advertising and Internet monetization Web spam detection Data consistency and provenance Processing uncertain data and information * KEYNOTE * Title: User Generated Content: How Good it is? Speaker: Ricardo Baeza-Yates (Yahoo! Research) Abstract: See website. * IMPORTANT DATES * February 3, 2009 - Page submission deadline February 26, 2009 - Notification of acceptance March 6, 2009 - Camera ready deadline April 20 or 21, 2009 - Workshop * SUBMISSION * Submissions should be sent in English in PDF format. Papers should adhere to ACM formatting guidelines and be no longer than 8 pages. They must be original and have not been submitted for publication elsewhere. We encourage also submission of position papers outlining interesting research directions. * ORGANIZATION * Katsumi Tanaka (Kyoto University, Japan) Xiaofang Zhou (University of Queensland, Australia) Adam Jatowt (Kyoto University, Japan) Program Committee: See website. * CONTACT * Adam Jatowt email: adam [at] dl [dot] kuis [dot] kyoto-u [dot] ac [dot] jp phone/fax: +81-75-231-4282