title: the aqua approximate query answering system. authors: s acharya , p gibbons , v poosala , s ramaswamy. venue: sigmod conference. year: 1999
title: , s. ramaswamy , and t. suel . aqua : system and techniques for approximate query answering. authors: pb gibbons , v poosala , s acharya , y bartal. venue: technical report , bell laboratories , murray hill , nj , feb. .. year: nan