This paper presents a new serial algorithm for selecting a nearly minimum number of vertex-guards so that all parts of a geographical surface modeled by a TIN (Triangulated Irregular Networks) is covered. Our algorithm selects fewer guards than the best existing algorithms on the average. Based on this approach, a new coarse-grain parallel algorithm for this problem is proposed. It has been showed that the upper bound for total number of guards, selected by this algorithm, is where n is number of vertices in the TIN. Average case analysis and implementation results show that in real TINs even fewer than guards (proved upper bound of needed guards in worse-case) are selected by our serial and parallel algorithms. © 2008 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Taghinezhad Omran, M. (2008). Parallel algorithm to find minimum vertex guard set in a triangulated irregular network. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 4967 LNCS, pp. 239–248). https://doi.org/10.1007/978-3-540-68111-3_26
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