Nitin Indurkhya Sholom M. Weiss Rule-Based Ensemble Solutions for Regression. 62-72 2001 conf/mldm/2001 MLDM http://link.springer.de/link/service/series/0558/bibs/2123/21230062.htm db/conf/mldm/mldm2001.html#IndurkhyaW01