title: approximate query processing using wavelets kyuseok shim , kaushik chakrabarti , minos n. garofalakis , rajeev rastogi vldb 2000. authors: nan. venue: nan. year: nan
title: the aqua approximate query answering system swarup acharya , phillip b. gibbons , viswanath poosala , sridhar ramaswamy 1999. authors: nan. venue: international conference on management of data. year: nan