Two-dimensional range successor in optimal time and almost linear space

被引:4
|
作者
Zhou, Gelin [1 ]
机构
[1] Univ Waterloo, David R Cheriton Sch Comp Sci, Waterloo, ON N2L 3G1, Canada
关键词
Data structures; Computational geometry; Range successor; Sorted range reporting; Planar orthogonal skyline reporting; QUERIES;
D O I
10.1016/j.ipl.2015.09.002
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this article, we revisit the problem of supporting two-dimensional range successor queries. We present a data structure with O (n lglg n) words of space and O(lglgn) query time. This improves the work of Nekrich and Navarro (2012) by a factor of lg lgn in query time, or a factor of lg(is an element of) in space cost, where E is an arbitrary positive constant. Our data structure matches the state of the art for two-dimensional range emptiness queries and achieves the optimal query time. This structure has fruitful applications in computational geometry and text indexing. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:171 / 174
页数:4
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