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Social Media and Personal Data • Much personal information revealed in social media –Content, links, ratings personal preferences • All this information is useful to –Researchers: social science –Businesses: targeted advertising Dec 5, 2014 AIRS 2014 2 User Biographies in Twitter • Self-introductions written in free form • Reflect users’ background and interests Dec 5, 2014 AIRS 2014 3 User Biographies in Twitter age profession interests Around 28% of Singapore Twitter users and 50% of US Twitter users revealed their personal interests in their biographies. Dong Wei et. al. Who am I on Twitter?: A cross-country comparison. WWW’2014 Dec 5, 2014 AIRS 2014 4 Outline • Background • Our task • Syntactic patterns of interest tags • Build training data + gold standard • Method • Experiments • Summary Dec 5, 2014 AIRS 2014 5 Our task • Automatically extract phrases that describe a user’s personal interests. –We call them “interest tags” –A typical information extraction problem. –Automatically build training data based on common syntactic patterns. Dec 5, 2014 AIRS 2014 6
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