title: xtract : a system for extracting document type descriptors from xml documents sigmod conference. authors: m garofalakis , a gionis , r rastogi , s seshadri , k shim. venue: nan. year: 2000.0
title: xtract : learning document type descriptors from xml document collections data mining and knowledge discovery , 2003.0. authors: m garofalakis , a gionis , r rastogi , s seshadri , k. venue: nan. year: nan