Reasoning about interaction in a multi-user system

  • Authors:
  • Michael Y. K. Cheng;Robin Cohen

  • Affiliations:
  • School of Computer Science, University of Waterloo;School of Computer Science, University of Waterloo

  • Venue:
  • UM'05 Proceedings of the 10th international conference on User Modeling
  • Year:
  • 2005

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Abstract

This paper presents a model for an agent to reason about interaction with multiple users in a collaborative environment. Central to this model is the concept of an interaction strategy, determining both who to ask and what to ask, towards maximizing overall expected utility. We allow for the case of a user not responding at all, after a period of waiting, and a user responding “I don't know”. Our model determines how long to wait for a response, and provides for follow up questions to users. All of this is done in a user modeling approach, with decisions based on specific factors being modeled for each user. We present the model in detail, using examples to illustrate its effectiveness and contrasting with related work.