Publication Type

Conference Proceeding Article

Version

publishedVersion

Publication Date

8-2012

Abstract

Orienteering problems (OPs) are a variant of the well-known prize-collecting traveling salesman problem, where the salesman needs to choose a subset of cities to visit within a given deadline. OPs and their extensions with stochastic travel times (SOPs) have been used to model vehicle routing problems and tourist trip design problems. However, they suffer from two limitations travel times between cities are assumed to be time independent and the route provided is independent of the risk preference (with respect to violating the deadline) of the user. To address these issues, we make the following contributions: We introduce (1) a dynamic SOP (DSOP) model, which is an extension of SOPs with dynamic (time-dependent) travel times; (2) a risk-sensitive criterion to allow for different risk preferences; and (3) a local search algorithm to solve DSOPs with this risk-sensitive criterion. We evaluated our algorithms on a real-world dataset for a theme park navigation problem as well as synthetic datasets employed in the literature.

Discipline

Artificial Intelligence and Robotics | Operations Research, Systems Engineering and Industrial Engineering

Publication

Uncertainty in Artificial Intelligence: Proceedings of the Twenty-Eighth Conference: August 15-17 2012, Catalina Island, United States

First Page

448

Last Page

458

ISBN

9780974903989

Publisher

AUAI Press

City or Country

Corvallis, OR

Copyright Owner and License

LARC

Additional URL

https://dslpitt.org/papers/12/p448-lau.pdf

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