Surajit Chaudhuri Yi Chen 0001 Jeffrey Xu Yu Guest Editors Introduction: Special Section on Keyword Search on Structured Data. 1761-1762 2011 23 IEEE Trans. Knowl. Data Eng. 12 http://dx.doi.org/10.1109/TKDE.2011.216 db/journals/tkde/tkde23.html#ChaudhuriCY11