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- W2148795536 abstract "In this paper, we develop improved cache-oblivious data structures for two- and three-sided planar orthogonal range searching. Our main result is an optimal static structure for two-sided range searching that uses linear space and supports queries in O(logBN + T/B) memory transfers, where B is the block size of any level in a multi-level memory hierarchy and T is the number of reported points. Our structure is the first linear-space cache-oblivious structure for a planar range searching problem with the optimal O(logBN + T/B) query bound. The structure is very simple, and we believe it to be of practical interest.We also show that our two-sided range search structure can be constructed cache-obliviously in O(N logBN) memory transfers. Using the logarithmic method and fractional cascading, this leads to a semi-dynamic linear-space structure that supports two-sided range queries in O(log2 N + T/B) memory transfers and insertions in O(log2N ⋅ logB N) memory transfers amortized. This structure is the first (semi-)dynamic structure for any planar range searching problem with a query bound that is logarithmic in the number of elements in the structure and linear in the output size.Finally, using a simple standard construction, we also obtain a static O(N log2 N)-space structure for three-sided range searching that supports queries in the optimal bound of O(logB N + T/B) memory transfers. These bounds match the bounds of the best previously known structure for this problem; but our structure is much simpler, simple enough, we believe, to be of practical interest." @default.
- W2148795536 created "2016-06-24" @default.
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- W2148795536 date "2006-06-05" @default.
- W2148795536 modified "2023-10-16" @default.
- W2148795536 title "Simple and semi-dynamic structures for cache-oblivious planar orthogonal range searching" @default.
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- W2148795536 doi "https://doi.org/10.1145/1137856.1137883" @default.
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