Space-Efficient and Fast Algorithms for Multidimensional Dominance Reporting and Counting
Space-Efficient and Fast Algorithms for Multidimensional Dominance Reporting and Counting
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用于多维优势报告和计数的空间高效且快速的算法
DOI:
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发表时间:
2004
期刊:
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通讯作者:
Qingmin Shi
中科院分区:
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作者:
J. JáJá;C. Mortensen;Qingmin Shi
We present linear-space sub-logarithmic algorithms for handling the 3-dimensional dominance reporting and the 2-dimensional dominance counting problems Under the RAM model as described in [M L Fredman and D E Willard “Surpassing the information theoretic bound with fusion trees”, Journal of Computer and System Sciences, 47:424–436, 1993], our algorithms achieve O(log n/loglog n+f) query time for the 3-dimensional dominance reporting problem, where f is the output size, and O(log n/loglog n) query time for the 2-dimensional dominance counting problem We extend these results to any constant dimension d ≥ 3, achieving O(n(log n/loglog n)d−3) space and O((log n/loglog n)d−2+ f) query time for the reporting case and O(n(log n/loglog n)d−2) space and O((log n/loglog n)d−1) query time for the counting case.