Web-Age Information Management WAIM 2011 International Workshops: WGIM 2011, XMLDM 2011, SNA 2011, Wuhan, China, September 14-16, 2011, Revised Selected Papers - Wang, Liwei; Jiang, Jingjue; Lu, Jiaheng; Hong, Liang; Liu, Bin (Springer Berlin Heidelberg, 2012)