Jiu Jun Chen Ji Gao Bei Shui Liao Jun Hu Dynamic Semantic Clustering Approach for Web User Interest. 59-66 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3252&spage=59 2004 conf/gcc/2004-w GCC Workshops db/conf/gcc/gcc2004-w.html#ChenGLH04