Mumtaz Ahmad Ashraf Aboulnaga Shivnath Babu Kamesh Munagala Modeling and exploiting query interactions in database systems. 183-192 2008 CIKM http://doi.acm.org/10.1145/1458082.1458109 conf/cikm/2008 db/conf/cikm/cikm2008.html#AhmadABM08