NDLI: Optimization of bounds in temporal flexible planning with dynamic controllability

Content Provider	IEEE Xplore Digital Library
Author	Wah, B.W. Xin, D.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Illinois Univ., Champaign, IL, USA (Wah, B.W.; Xin, D.)
Abstract	A temporal flexible planning problem can be formulated as a simple temporal network with uncertainty (STNU), whose links are classified as contingent and requirement links. The problem of constraint satisfaction for STNU has been characterized as controllability, where dynamic controllability is the most interesting and useful controllability property. We study the assignment of bounds allowed on the requirement links in order for the resulting STNU to be dynamically controllable and the total cost over the allowed ranges of the requirement links to be minimized. Since the problem with a linear cost function is NP-hard, we formulate the dynamic controllability of an STNU with a general cost function as constraints in a nonlinear optimization problem. Our approach is flexible because it can incorporate additional constraints, such as resource constraints, in the formulation. Finally, we present methods to reduce the number of constraints in order to make the problem tractable.
Sponsorship	IEEE Comput. Soc.
Starting Page	40
Ending Page	48
File Size	199614
Page Count	9
File Format	PDF
ISBN	076952236X
ISSN	10823409
DOI	10.1109/ICTAI.2004.97
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Controllability Uncertainty Urban planning Cost function Artificial intelligence Electronic mail Constraint optimization Cameras Mars Upper bound
Content Type	Text
Resource Type	Article

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