Shui-Lung Chuang Lee-Feng Chien Towards Automatic Generation of Query Taxonomy: A Hierarchical Query Clustering Approach. 75-82 2002 conf/icdm/2002 ICDM http://computer.org/proceedings/icdm/1754/17540075abs.htm db/conf/icdm/icdm2002.html#ChuangC02