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R-Trees

R-Trees. 2-dimensional indexing structure. R-trees. 2-dimensional version of the B-tree:. B-tree of maximum degree 8; degree between 3 and 8. Internal nodes with k children have k -1 split values. R-trees. Can store: a set of polygons (regions of a subdivision)

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B-Trees

B-Trees. Disk Storage What is a multiway tree? What is a B-tree? Why B-trees? Insertion in a B-tree Deletion in a B-tree. Disk Storage. Data is stored on disk (i.e., secondary memory) in blocks. A block is the smallest amount of data that can be accessed on a disk.

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801 views • 29 slides

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R-Trees

B-Trees