Raphael Hoffmann Saleema Amershi Kayur Patel Fei Wu James Fogarty Daniel S. Weld Amplifying community content creation with mixed initiative information extraction. 1849-1858 2009 CHI http://doi.acm.org/10.1145/1518701.1518986 conf/chi/2009 db/conf/chi/chi2009.html#HoffmannAPWFW09