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Issue No. 02 - March/April (2005 vol. 20)
ISSN: 1541-1672
pp: 34-41
Dana Nau , University of Maryland
Tsz-Chiu Au , University of Maryland
Okhtay Ilghami , University of Maryland
Ugur Kuter , University of Maryland
H?ctor Munoz-Avila , Lehigh University
J. William Murdock , IBM Research
Dan Wu , University of Maryland
Fusun Yaman , University of Maryland
SHOP and SHOP2 are hierarchical task network (HTN) planning systems that were designed with two goals in mind: to investigate some research issues in automated planning, and to provide some simple, practical planning tools. They are available as open-source software and have an active base of users in government, industry, and universities. SHOP2 received one of the top four awards in the 2002 International Planning Competition. This article summarizes how SHOP and SHOP2 work, describes some of the applications that users have developed for them, and discusses directions for future work.
hierarchical task networks, HTN planning, open source

D. Nau et al., "Applications of SHOP and SHOP2," in IEEE Intelligent Systems, vol. 20, no. , pp. 34-41, 2005.
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