Goal specification in presence of non-deterministic Actions

Chitta Baral, Jicheng Zhao

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

9 Scopus citations


One important aspect in directing cognitive robots or agents is to formally specify what is expected of them. This is often referred to as goal specification. For agents whose actions have deterministic consequences various goal specification languages have been proposed. The situation is different, and less studied, when the actions may have non-deterministic consequences. For example, a simple goal of achieving p has many nuances such as making sure that p is achieved, trying ones best to achieve p, preferring guaranteed achievement of p over possible achievement, and so on. Similarly, there are many nuances in expressing the goal to try to achieve p, and if it fails then to achieve q. We develop an extension of the branching time temporal logic CTL, which we call π-CTL, and show how the above mentioned goals can be expressed using it, and why they can not be expressed in CTL. We compare our approach to an alternative approach proposed in the literature.

Original languageEnglish (US)
Title of host publicationECAI 2004 - 16th European Conference on Artificial Intelligence, including Prestigious Applications of Intelligent Systems, PAIS 2004 - Proceedings
PublisherIOS Press
Number of pages5
ISBN (Electronic)9781586034528
StatePublished - 2004
Event16th European Conference on Artificial Intelligence, ECAI 2004 - Valencia, Spain
Duration: Aug 22 2004Aug 27 2004

Publication series

NameFrontiers in Artificial Intelligence and Applications
ISSN (Print)09226389


Other16th European Conference on Artificial Intelligence, ECAI 2004

ASJC Scopus subject areas

  • Artificial Intelligence


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