Player Autonomy versus Designer Intent: A Case Study of Interactive Tour Guides. - David L. Roberts 001; Andrew S. Cantino; Charles Lee Isbell Jr. (AIIDE, 2007)

Autonomous nondeterministic tour guides: improving quality of experience with TTD-MDPs. - Andrew S. Cantino; David L. Roberts 001; Charles L. Isbell Jr. (AAMAS, 2007)