Parag Agrawal Omar Benjelloun Anish Das Sarma Chris Hayworth Shubha U. Nabar Tomoe Sugihara Jennifer Widom Trio: A System for Data, Uncertainty, and Lineage. 1151-1154 2006 conf/vldb/2006 VLDB http://www.vldb.org/conf/2006/p1151-agrawal.pdf db/conf/vldb/vldb2006.html#AgrawalBSHNSW06