Joseph Beck Beverly Park Woolf Carole R. Beal ADVISOR: A Machine Learning Architecture for Intelligent Tutor Construction. 552-557 2000 conf/aaai/2000 AAAI/IAAI db/conf/aaai/aaai2000.html#BeckWB00 http://www.aaai.org/Library/AAAI/2000/aaai00-084.php