Makoto Nakatsuji Yu Miyoshi Yoshihiro Otsuka Innovation Detection Based on User-Interest Ontology of Blog Community. 515-528 2006 conf/semweb/2006 International Semantic Web Conference http://dx.doi.org/10.1007/11926078_37 db/conf/semweb/iswc2006.html#NakatsujiMO06