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- W2300160176 abstract "The shortest-path problem has been studied in various settings in Computational Geometry literatures. This includes the shortest-path ~ r o b l e m inside the simple polygon and the shortest-path problem avoiding a set of polygonal obstacles. Further variations of these problems are possible for different types of polygons or polygonal obstacles. In this thesis we will study the rectilinear shortest path problem avoiding a set of isothetic rectangles and vertical line segment obstacles. We will present efficient preprocessing algorithms to answer the shortest path between two arbitrary query p i n t s . We also demonstrate an approximation algorithm with less preprocessing and query time to report an approximate shortest path between two arbitrary query points. Then we present an efficient parallel algorithm to preprocess the set of rectangles to answer the shortest-path query between two arbitrary points using a single processor. We also present an efficient parallel algorithm t o answer the single shot shortestdistance between a source and a destination point specified during the input. Lastly we present an efficient parallel algorithm to preprocess a set of vertical line segments to answer the approximate shortest-path query between two arbitrary points." @default.
- W2300160176 created "2016-06-24" @default.
- W2300160176 creator A5045420930 @default.
- W2300160176 date "1995-01-01" @default.
- W2300160176 modified "2023-09-24" @default.
- W2300160176 title "RECTILINEAR SHORTEST PATHS AMONG OBSTACLES IN THE PLANE" @default.
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- W2300160176 hasPublicationYear "1995" @default.
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