On the Geometric Dilation of Finite Point Sets 1st edition by Annette Ebbers Baumann, Ansgar Grüne, Rolf Klein – Ebook PDF Instant Download/Delivery. 3540206958, 978-3540206958
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ISBN 10: 3540206958
ISBN 13: 978-3540206958
Author: Annette Ebbers Baumann, Ansgar Grüne, Rolf Klein
Let G be an embedded planar graph whose edges may be curves. For two arbitrary points of G, we can compare the length of the shortest path in G connecting them against their Euclidean distance. The maximum of all these ratios is called the geometric dilation of G. Given a finite point set, we would like to know the smallest possible dilation of any graph that contains the given points. In this paper we prove that a dilation of 1.678 is always sufficient, and that π/2 = 1.570… is sometimes necessary in order to accommodate a finite set of points.
On the Geometric Dilation of Finite Point Sets 1st Table of contents:
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Introduction
- 1.1 Overview of Geometric Dilation
- 1.2 Importance of Dilation in Computational Geometry
- 1.3 Motivation and Applications of Geometric Dilation
- 1.4 Structure of the Paper
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Preliminaries in Geometric Geometry
- 2.1 Basic Definitions in Computational Geometry
- 2.2 Geometric Transformations and Scaling
- 2.3 Point Sets in Euclidean Space
- 2.4 Convex Hulls and Other Geometric Constructs
- 2.5 Notations and Terminology
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Understanding Geometric Dilation
- 3.1 Formal Definition of Geometric Dilation
- 3.2 Dilation in Euclidean Space
- 3.3 The Role of Distance Functions in Dilation
- 3.4 Properties of Geometric Dilation
- 3.5 Dilation and Convexity: A Relationship
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Dilation of Finite Point Sets
- 4.1 Dilation for Finite Point Sets: Key Concepts
- 4.2 Dilation of Point Sets in One, Two, and Higher Dimensions
- 4.3 Geometric Dilation and the Shape of Point Sets
- 4.4 Impact of Distribution and Configuration of Points on Dilation
- 4.5 Applications to Geometric Clustering and Approximation
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Computational Methods for Geometric Dilation
- 5.1 Algorithms for Calculating Geometric Dilation
- 5.2 Exact vs. Approximate Methods
- 5.3 Efficient Computation of Convex Hulls and Related Structures
- 5.4 Approximating Dilation in High Dimensions
- 5.5 Complexity Analysis of Dilation Algorithms
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Properties and Bounds of Geometric Dilation
- 6.1 Upper and Lower Bounds for Dilation
- 6.2 Extremal Point Configurations and Their Dilation
- 6.3 Relationships Between Dilation and Other Geometric Parameters (e.g., Diameter, Spread)
- 6.4 Metric Properties of Dilation in Various Spaces
- 6.5 Dilation and Optimization: Finding Minimal Dilation Partitions
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Applications of Geometric Dilation
- 7.1 Dilation in Clustering and Data Analysis
- 7.2 Geometric Dilation in Network Design and Facility Location
- 7.3 Dilation and its Role in Image Processing and Computer Vision
- 7.4 Dilation in Geospatial Data and Geographic Information Systems (GIS)
- 7.5 Real-World Examples and Case Studies
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Advanced Topics in Geometric Dilation
- 8.1 Dilation in Non-Euclidean Spaces (e.g., Hyperbolic, Spherical)
- 8.2 Dilation for Non-Convex Sets and Complex Geometries
- 8.3 Randomized Algorithms for Dilation
- 8.4 Multi-Scale Dilation and Its Computational Applications
- 8.5 Geometric Dilation in Graphs and Networks
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Open Problems and Future Directions
- 9.1 Challenges in Computing Geometric Dilation in High Dimensions
- 9.2 Exploring Non-Convex Dilation and Generalizations
- 9.3 Theoretical and Algorithmic Open Problems in Dilation
- 9.4 Future Directions in Geometric Dilation and Applications
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Conclusion
- 10.1 Summary of Key Insights on Geometric Dilation
- 10.2 Contributions to Computational Geometry and Optimization
- 10.3 Final Thoughts and Future Impact
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