[ACM Press the tenth annual symposium - Stony Brook, New York, United States (1994.06.06-1994.06.08)] Proceedings of the tenth annual symposium on Computational geometry - SCG '94 - An algorithm for approximate closest-point queries
β Scribed by Clarkson, Kenneth L.
- Book ID
- 121207770
- Publisher
- ACM Press
- Year
- 1994
- Weight
- 432 KB
- Category
- Article
- ISBN-13
- 9780897916486
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Gautam Das q t Giri NarasimhanΓ bstract Let G = (V, 1?) be a n-vertex connected graph with positive edge weights. A subgraph G' is a t-spanner if for all u, v c V, the distance between u and v in the subgraph is at most t times the corresponding distance in G. We design an O(n log2 n) time algorithm
In this paper we give parallel algorithms for a number of problems defined on polygons and point sets. All of our algorithms have optimal T(n) \* P(n) products, where T(n) is the time complexity and P(n} is the number of processors used, and are for the EREW PRAM or CREW PRAM models. In addition, ou