Ed Chi

research wikipedia hci asc twitter social keynote cognition parc mturk social media search web2.0 crowd dynamics editorship wisdom social computing 2011 amazon edchi recommender conference web20 wikisym design chi2009 mrtaggy evaluation lab augmented web tagging wikidashboard focused learning deep retrieval machine learning ml platform 2012 korea analytics behavior language location invited talk sss human computer interaction aaai mechanical turk social stream languages usage social annotation elearning education2.0 cscl duplication social sciences replication tutorial user study clustering browser browsing client topic social analytics data analytics large scale delicious model-based chi2010 passages highlighting index iui ebook hcir hypertext msm2010 msm10 modeling talk acm foraging user modeling infoscent infoforaging overview workshop social tagging tagsearch evolution growth model population analysis editor activity social community wisdomofcrowd shifts dynamic changes 2009 models laboratories ecological methodology method paper living position forum feedback relevance tag-based chi2007 conflict