Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 24, Problem 4PE
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The nearest neighbour search algorithm using R-tree is as follows:
- The algorithm uses an ordered depth first traversal.
- The depth traversal begins with the R-tree root node and proceeds down the tree.
- The original guess for the neighbour distance is infinity. It may be called Nearest.
- During the descending phase, at each newly visited non-leaf node, the algorithm calculates the ordering metric compounds for all its Minimum-Bounding Regions and then they are sorted into an Active Branch List (ABL).
- Then pruning strategies is applied to the ABL for removing unnecessary branches.
- The algorithm will iterate on this ABL until the ABL is empty.
- For every iteration, the next branch is selected in the list and it is applied recursively to the node corresponding to the Minimum-Bounding Region of this branch...
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relations in the UML correctly:
Animal
name: String
# Animal (name: String)
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name: Coco, breed: Domestic short-haired, age: 3
Meow Meow
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