title: efficient approximation of optimization queries under parametric aggregation constraints. authors: s guha , d gunopulos , n koudas , d srivastava , m vlachos. venue: vldb. year: 2003
title: efficient approximation of optimization queries under parametric aggregation constraints. authors: s guha , d gunopulos , n koudas , d srivastava , m. venue: proceedings of the international conference on very large & hellip ; ,. year: 2003.0