David W. Albrecht Ingrid Zukerman Ann E. Nicholson Bayesian Models for Keyhole Plan Recognition in an Adventure Game. 5-47 1998 8 User Model. User-Adapt. Interact. 1-2 http://dx.doi.org/10.1023/A:1008238218679 db/journals/umuai/umuai8.html#AlbrechtZN98