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Believability through context using "knowledge in the world" to create intelligent characters

Published:15 July 2002Publication History

ABSTRACT

Intelligent characters are presently quite limited. How useful and how believable they are depends on the extent to which they are integrated into a specific environment for a particular set of tasks. This tight integration of character and context is an inadequate approach in the rapidly-expanding realm of large, diverse, structurally homogeneous but disparate virtual environments, of which the Web is only the most obvious example. By separating a character's core features, which are invariable, from its knowledge of and abilities in any specific environment, and embedding this latter information as annotations in the environment itself, we can significantly improve the character's believability, its utility, and its reusability across a variety of domains.This paper describes an agent architecture that can interact with an annotated virtual environment, together with a structure for representing information in and about these environments. We also present an example applying this approach to intelligent characters in a complex virtual world.

References

  1. J. Bates. The nature of characters in interactive worlds and the Oz project. Technical Report CMU-CS-92-200, Carnegie Mellon University, Pittsburgh, PA, October 1992.Google ScholarGoogle Scholar
  2. R. Brooks. Elephants don't play chess. Robotics and Autonomous Systems, 6:3--15, 1990.Google ScholarGoogle ScholarDigital LibraryDigital Library
  3. P. Curtis. Mudding: Social phenomena in text-based virtual realities, 1992. Available from ftp://ftp.lambda.moo.mud.org/pub/MOO/papers.Google ScholarGoogle Scholar
  4. P. Doyle. Characters in Annotated Worlds. PhD thesis, Stanford University, 2002. forthcoming.Google ScholarGoogle Scholar
  5. P. Doyle and B. Hayes-Roth. Agents in annotated worlds. In Proceedings of the Second International Conference on Autonomous Agents, pages 173--180, Minneapolis, MN, October 1998. ACM Press. Google ScholarGoogle ScholarDigital LibraryDigital Library
  6. P. Doyle and B. Hayes-Roth. Guided exploration of virtual worlds. In F. Sudweeks, M. McLaughlin, and S. Rafaeli, editors, Network and Netplay: Virtual Groups on the Internet, pages 243--264. AAAI Press, Menlo Park, CA, 1998. Google ScholarGoogle ScholarDigital LibraryDigital Library
  7. C. Elliott and J. Brzezinski. Autonomous agents as synthetic characters. AI Magazine, Summer:13--30, 1998.Google ScholarGoogle Scholar
  8. L. Foner. What's an agent, anyway? a sociological case study. Agents Memo 93-01, Media Laboratory, Massachusetts Instutite of Technology, Cambridge, MA, May 1993.Google ScholarGoogle Scholar
  9. J. J. Gibson. The theory of affordances. In R. Shaw and J. Bransford, editors, Perceiving, Acting, and Knowing: Toward an Ecological Psychology. Lawrence Erlbaum Associates, Hillsdale, NJ, 1977.Google ScholarGoogle Scholar
  10. A. Goldberg. IMPROV: A system for real-time animation of behavior-based interactive synthetic actors. Lecture Notes in Computer Science, 1195, 1997. Google ScholarGoogle ScholarDigital LibraryDigital Library
  11. B. Hayes-Roth and P. Doyle. Animate characters. Autonomous Agents and Multi-Agent Systems, 1:195--230, 1998. Google ScholarGoogle ScholarDigital LibraryDigital Library
  12. B. Hayes-Roth, R. van Gent, and D. Huber. Acting in character. In R. Trappl and P. Petta, editors, Creating Personalities for Synthetic Actors. Springer-Verlag, Berlin, 1997. Google ScholarGoogle ScholarDigital LibraryDigital Library
  13. K. Isbister and P. Doyle. Touring machines: Guide agents for sharing stories about digital places. In Narrative Intelligence: Papers from 1999 AAAI Fall Symposium, pages 93--100. AAAI, AAAI Press, 1999.Google ScholarGoogle Scholar
  14. W. L. Johnson and J. Rickel. Integrating pedagogical capabilities in a virtual environment agent. In Proceedings of the First International Conference on Autonomous Agents, pages 30--38, Marina del Rey, CA, February 1997. ACM Press. Google ScholarGoogle ScholarDigital LibraryDigital Library
  15. C. Jones. Chuck Amuck: The Life and Times of an Animated Cartoonist. Farrar, Straus and Giroux, 1989.Google ScholarGoogle Scholar
  16. J. Lester and B. Stone. Increasing believability in animated pedagogical agents. In Proceedings of the First International Conference on Autonomous Agents, pages 16--21. ACM Press, February 1997. Google ScholarGoogle ScholarDigital LibraryDigital Library
  17. M. Mateas. An Oz-centric review of interactive drama and believable agents. Technical Report CMU-CS-97-156, Carnegie Mellon University, Pittsburgh, PA, 1997.Google ScholarGoogle Scholar
  18. Maxis. The Sims. software.Google ScholarGoogle Scholar
  19. D. Norman. Things That Make Us Smart. Addison-Wesley, Reading, MA, 1993.Google ScholarGoogle Scholar
  20. A. Ortony, G. L. Clore, and A. Collins. The Cognitive Structure of Emotions. Cambridge UP, 1988.Google ScholarGoogle ScholarCross RefCross Ref
  21. P. Sengers. Do the thing right: An architecture for action expression. In Proceedings of the Second International Conference on Autonomous Agents, pages 24--31, Minneapolis, MN, May 1998. ACM Press. Google ScholarGoogle ScholarDigital LibraryDigital Library
  22. F. Thomas and O. Johnson. The Illusion of Life: Disney Animation. Hyperion Books, 1981.Google ScholarGoogle Scholar
  23. J. Weizenbaum. ELIZA -- A computer program for the study of natural language communication between man and machine. Communications of the ACM, 9(1):36--45, 1966. Google ScholarGoogle ScholarDigital LibraryDigital Library

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                cover image ACM Conferences
                AAMAS '02: Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 1
                July 2002
                540 pages
                ISBN:1581134800
                DOI:10.1145/544741

                Copyright © 2002 ACM

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                Publication History

                • Published: 15 July 2002

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