title: approximating aggregate queries about web pages via random walks. authors: jittat fakcharoenphol , steve chien , ziv bar-yossef , alexander berg , dror weitz. venue: vldb. year: 2000
title: approximating aggregate queries about web pages via random walks. authors: ziv bar-yossef , alexander berg , steve chien , jittat fakcharoenphol , dror weitz. venue: very large data bases. year: 2000