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Platas—Integrating Planning and the Action Language Golog


Action programming languages like Golog allow to define complex behaviors for agents on the basis of action representations in terms of expressive (first-order) logical formalisms, making them suitable for realistic scenarios of agents with only partial world knowledge. Often these scenarios include sub-tasks that require sequential planning. While in principle it is possible to express and execute such planning sub-tasks directly in Golog, the system can performance-wise not compete with state-of-the-art planners. In this paper, we report on our efforts to integrate efficient planning and expressive action programming in the Platas project. The theoretical foundation is laid by a mapping between the planning language Pddl and the Situation Calculus, which is underlying Golog, together with a study of how these formalisms relate in terms of expressivity. The practical benefit is demonstrated by an evaluation of embedding a Pddl planner into Golog, showing a drastic increase in performance while retaining the full expressiveness of Golog.

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Platas is part of the LogWiss research cluster. It is funded by the Deutsche Forschungsgemeinschaft (DFG) under grants La 747/13-2, La 747/14-1, Ne 623/10-1, and Ne 623/10-2.

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Correspondence to Jens Claßen.

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Claßen, J., Röger, G., Lakemeyer, G. et al. Platas—Integrating Planning and the Action Language Golog. Künstl Intell 26, 61–67 (2012).

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  • Durative Action
  • Source Formalism
  • Action Language
  • Domain Description
  • Situation Calculus