title: functional properties of information filtering r sawai , m tsukamoto , y loh , t terada , s nishio vldb 2001. authors: nan. venue: nan. year: nan
title: on functional properties of information filtering r sawai , m tsukamoto , t terada , yh loh , s nishio 2003.0. authors: nan. venue: electronics and communications in japan ( part ii electronics ) ,. year: nan