title: filtering with approximate predicates hector garcia-molina , narayanan shivakumar , chandra chekuri 1998. authors: nan. venue: vldb. year: nan
title: optimizing disjunctive queries with expensive predicates a. kemper , g. moerkotte , k. peithner , m. steinbrunn. authors: nan. venue: international conference on management of data. year: 1994.0