title: new sampling-based summary statistics for improving approximate query answers phillip b. gibbons , yossi matias sigmod conference. authors: nan. venue: nan. year: 1998.0
title: join synopses for approximate query answering swarup acharya , phillip b. gibbons , viswanath poosala , sridhar ramaswamy. authors: nan. venue: international conference on management of data. year: 1999.0