Design and implementation of algorithms for aggregate queries in the presence of duplicates

Design and implementation of algorithms for aggregate queries in the presence of duplicateshttp://www.library.tuc.gr/artemis/DT2014-0038/DT2014-0038.pdfhttp://purl.tuc.gr/dl/dias/90C82C0B-3F7A-4947-B4C4-715EAF4023F3Design and implementation of algorithms for aggregate queries in the presence of duplicatesfree2014-03-24application/pdf