Detecting and tracking hostile plans in the hats world

Aram Galstyan, Sinjini Mitra, Paul R Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


Plan recognition is the problem of inferring an agent's hidden state of plans, or intentions, based on the pattern of his observable actions. Among many potential applications, intention recognition can be particularly useful for intelligence analysis and homeland security related problems. While most of the existing work in plan recognition has focused on studying overt agents, problems from the intelligence domain usually have different settings, where hostile agents operate covertly in a large population of otherwise benign entities. In this paper we formulate a problem of detecting and tracking hostile intentions in such an environment - a virtual world where a large number of agents are involved in individual and collective activities. Most of the agents are benign, while a small number of them have malicious intent. We describe our initial effort for building a probabilistic framework for detecting hostile activities in this system, and provide some initial results for simple scenarios.

Original languageEnglish (US)
Title of host publicationAAAI Workshop - Technical Report
Number of pages7
Publication statusPublished - 2007
Externally publishedYes
Event2007 AAAI Workshop - Vancouver, BC, Canada
Duration: Jul 23 2007Jul 23 2007


Other2007 AAAI Workshop
CityVancouver, BC


ASJC Scopus subject areas

  • Engineering(all)

Cite this

Galstyan, A., Mitra, S., & Cohen, P. R. (2007). Detecting and tracking hostile plans in the hats world. In AAAI Workshop - Technical Report (Vol. WS-07-09, pp. 37-43)