Son Bao Pham Achim G. Hoffmann Incremental Knowledge Acquisition for Building Sophisticated Information Extraction Systems with KAFTIE. 292-306 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3336&spage=292 2004 conf/pakm/2004 PAKM db/conf/pakm/pakm2004.html#PhamH04