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Approximation Solutions for Time-Varying Shortest Path Problem | ||
| Communications in Combinatorics and Optimization | ||
| مقاله 5، دوره 2، شماره 2، آذر 2017، صفحه 139-147 اصل مقاله (439.64 K) | ||
| نوع مقاله: Original paper | ||
| شناسه دیجیتال (DOI): 10.22049/cco.2017.25850.1047 | ||
| نویسندگان | ||
| Gholam Hassan Shirdel* 1؛ Hassan Rezapour2 | ||
| 1University of Qom | ||
| 2Unuversity of Qom | ||
| چکیده | ||
| Time-varying network optimization problem, which is NP-complete in the ordinary sense, are traditionally solved by specialized algorithms. This paper considers the time-varying shortest path problem, which can be optimally solved in $O\big(T(m+n)\big)$ time, where $T$ is a given integer. For this problem with arbitrary waiting times, we propose an approximate algorithm, which can find an acceptable solution of the problem with $O\big(\frac{T(m+n)}{k}\big)$ time complexity such that it evaluates only a subset of the values for $t \in \{0, 1,\ldots,T\}$. | ||
| کلیدواژهها | ||
| Time-Varying Optimization؛ Approximation solutions؛ Shortest Path Problem | ||
| مراجع | ||
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