Douglas Burdick Prasad M. Deshpande T. S. Jayram Raghu Ramakrishnan Shivakumar Vaithyanathan OLAP over uncertain and imprecise data. 123-144 2007 16 VLDB J. 1 http://dx.doi.org/10.1007/s00778-006-0033-y db/journals/vldb/vldb16.html#BurdickDJRV07