Robert Cooley Pang-Ning Tan Jaideep Srivastava Discovery of Interesting Usage Patterns from Web Data. 163-182 http://link.springer.de/link/service/series/0558/bibs/1836/18360163.htm 1999 conf/kdd/1999web WEBKDD db/conf/kdd/webkdd1999.html#CooleyTS99