Zhengdao Xu Papers on DiSC'04 Efficient Constraint Processing for Highly Personalized Location Based Services Publications Note: Links lead to the DBLP on the Web. Zhengdao Xu Zhengdao Xu, Hans-Arno Jacobsen : Efficient Constraint Processing for Highly Personalized Location Based Services. VLDB 2004 : 1285-1288 1 [ 1 ] ©2005 Association for Computing Machinery