References

• Jim Blythe. Robust plannning under uncertainty. Thesis Proposal, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, January 1995.
  
  
• Rodney~A. Brooks. How to build complete creatures rather than isolated cognitive architectures. In Kurt Vanlehn, editor, Architectures for Intelligence. (Erlbaum: Hillsdale, NJ), 1991.
  
  
• C.~Anthony DellaFera, Mark~W. Eichin, Robert~S. French, David~C. Jedlinsky, John~T. Kohl, and William~E. Sommerfeld. The {Zephyr} notification service. In Proceedings of the USENIX Winter Conference, pages 213--219, Dallas, TX, 1988. (Berkeley, CA: USENIX Association).
  
  
• Karen~Zita Haigh and Manuela~M. Veloso. Interleaving planning and robot execution for asynchronous user requests. Autonomous Robots, 1997. Invited submission. In press.
  
  
• Hell\^o. \c{C}he\c{c}kng w\`eird char\'acters, 1996.
  
  
• Tom~M. Mitchell. Machine Learning. (New York, NY: McGraw Hill), 1997.
  
  
• Nils~J. Nilsson. Shakey the robot. Technical Report 323, AI Center, SRI International, Menlo Park, CA, 1984.
  
  
• Illah Nourbakhsh. Interleaving Planning and Execution for Autonomous Robots. (Dordrecht, Netherlands: Kluwer Academic), 1997. PhD thesis. Also available as technical report STAN-CS-TR-97-1593, Department of Computer Science, Stanford University, Stanford, CA.
  
  
• Joseph O'Sullivan, Karen~Zita Haigh, and G.~D. Armstrong. Xavier. Carnegie Mellon University, Pittsburgh, PA, April 1997. Manual, Version 0.3, unpublished internal report.
  
  
• Louise~Margaret Pryor. Opportunities and Planning in an Unpredictable World. PhD thesis, Northwestern University, Evanston, Illinois, 1994. Available as Technical Report number 53.
  
  
• Reid Simmons, Rich Goodwin, Karen~Zita Haigh, Sven Koenig, and Joseph O'Sullivan. A layered architecture for office delivery robots. In W.~Lewis Johnson, editor, Proceedings of the First International Conference on Autonomous Agents, pages 245--252, Marina del Rey, CA, February 1997. (New York, NY: ACM Press.
  
  
• Peter Stone and Manuela~M. Veloso. User-guided interleaving of planning and execution. In New Directions in {AI} Planning, pages 103--112. (Amsterdam, Netherlands: IOS Press), 1996.
  
  
• Sebastian Thrun. A {B}ayesian approach to landmark discovery and active perception for mobile robot navigation. Technical Report CMU-CS-96-122, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, 1996.
  
  
• Manuela~M. Veloso, Jaime Carbonell, M.~Alicia P\'erez, Daniel Borrajo, Eugene Fink, and Jim Blythe. Integrating planning and learning: The {\sc prodigy} architecture. Journal of Experimental and Theoretical Artificial Intelligence, 7(1):81--120, January 1995.