title: qxtract : a building block for efficient information extraction from plain-text databases sigmod conference 2003. authors: e agichtein , l gravano. venue: nan. year: nan
title: qxtract : a building block for efficient information extraction from text databases 2003.0. authors: e agichtein , l gravano. venue: proceedings of the 2003 acm sigmod international conference & hellip ; ,. year: nan