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Domain independent goal recognition

Pattison, D. and Long, D. (2010) Domain independent goal recognition. In: STAIRS 2010: Proceedings of the Fifth Starting AI Researchers' Symposium. IOS Press, 238 - 250.

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Abstract

Goal recognition is generally considered to follow plan recognition. The plan recognition problem is typically defined to be that of identifying which plan in a given library of plans is being executed, given a sequence of observed actions. Once a plan has been identified, the goal of the plan can be assumed to follow. In this work, we address the problem of goal recognition directly, without assuming a plan library. Instead, we start with a domain description, just as is used for plan construction, and a sequence of action observations. The task, then, is to identify which possible goal state is the ultimate destination of the trajectory being observed. We present a formalisation of the problem and motivate its interest, before describing some simplifying assumptions we have made to arrive at a first implementation of a goal recognition system, AUTOGRAPH. We discuss the techniques employed in AUTOGRAPH to arrive at a tractable approximation of the goal recognition problem and show results for the system we have implemented.

Item type: Book Section
ID code: 32917
Keywords: goal recognition, goal recognition system , computer systems design, Electronic computers. Computer science
Subjects: Science > Mathematics > Electronic computers. Computer science
Department: Faculty of Science > Computer and Information Sciences
Depositing user: Pure Administrator
Date Deposited: 01 Sep 2011 13:52
Last modified: 21 May 2015 19:26
URI: http://strathprints.strath.ac.uk/id/eprint/32917

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