当前位置: X-MOL 学术Inf. Comput. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Compact and succinct data structures for multidimensional orthogonal range searching
Information and Computation ( IF 1 ) Pub Date : 2020-01-15 , DOI: 10.1016/j.ic.2020.104519
Kazuki Ishiyama , Kunihiko Sadakane

We introduce compact and succinct representations of a d-dimensional point set for any constant d3 supporting orthogonal range searching. Our first data structure uses dnlgn+o(nlgn) bits, where n denotes the number of points in P, and supporting reporting queries in O((n(d2)/d+occ)lgn/lglgn) time, and counting queries in O(n(d2)/dlgn/lglgn) time, where occ denotes the number of point to report, which is faster than known algorithms. Our second data structure uses dnlgUnlgn+o(nlgn) bits, where U is the size of the universe, which asymptotically matches the information-theoretic lower bound. The query time complexity is worse than the first one, but the algorithm runs fast in practical database search.



中文翻译:

紧凑而简洁的数据结构,用于多维正交范围搜索

我们为任何常数引入d维点集的简洁表示d3支持正交范围搜索。我们的第一个数据结构使用dñlgñ+Øñlgñ位,其中n表示P中的点数,并支持P中的报告查询Øñd-2/d+occlgñ/lglgñ 时间,并计算中的查询 Øñd-2/dlgñ/lglgñ时间,其中occ表示要报告的点数,比已知算法快。我们的第二个数据结构使用dñlgü-ñlgñ+Øñlgñ位,其中U是宇宙的大小,渐近地与信息理论的下限匹配。查询时间复杂度比第一个要差,但是该算法在实际的数据库搜索中运行速度很快。

更新日期:2020-01-15
down
wechat
bug