• Accord: Middleware Support for Contextual, Ubiquitous Data Management on User Devices 

      Cooper, Brian F.; Isbell, Charles Lee, Jr.; Pierce, Jeffrey S.; Roberts, David L.; Bhat, Sooraj (Georgia Institute of Technology, 2006)
      People increasingly use a diverse array of computational devices, including desktop PCs, one or more laptops, a cell phone, a PDA, tablet PCs, digital music players, automobile computers, and so on. We present Accord, ...
    • Autonomous Nondeterministic Tour Guides: Improving Quality of Experience with TTD-MDPs 

      Cantino, Andrew S.; Roberts, David L.; Isbell, Charles Lee, Jr. (Georgia Institute of Technology, 2007)
      In this paper, we address the problem of building a system of autonomous tour guides for a complex environment, such as a museum with many visitors. Visitors may have varying preferences for types of art or may wish to ...
    • Horizon-based Value Iteration 

      Zang, Peng; Irani, Arya; Isbell, Charles Lee, Jr. (Georgia Institute of Technology, 2007)
      We present a horizon-based value iteration algorithm called Reverse Value Iteration (RVI). Empirical results on a variety of domains, both synthetic and real, show RVI often yields speedups of several orders of magnitude. ...