Scalable Spatial GroupBy Aggregations Over Complex Polygons
Scalable Spatial GroupBy Aggregations Over Complex Polygons
复制标题
可扩展的空间组通过复杂多边形上的聚合
DOI:
10.1145/3397536.3422222
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Tsotras, Vassilis J.
中科院分区:
文献类型:
--
作者:
Abdelhafeez, Laila;Magdy, Amr;Tsotras, Vassilis J.
This paper studies a spatial group-by query over complex polygons. Groups are selected from a set of non-overlapping complex polygons, typically in the order of thousands, while the input is a large-scale dataset that contains hundreds of millions or even billions of spatial points. Given a set of spatial points and a set of polygons, the spatial group-by query returns the number of points that lie within boundaries of each polygon. This problem is challenging because real polygons (like counties, cities, postal codes, voting regions, etc.) are described by very complex boundaries. We propose a highly-parallelized query processing framework to efficiently compute the spatial group-by query. Our experimental evaluation with real data and queries has shown significant superiority over all existing techniques.
登录
查看更多内容
DOI:
--
发表时间:
2015
期刊:
International Workshop on Algorithmic Aspects of Cloud Computing
影响因子:
--
作者:
Nikolaos Nodarakis;S. Sioutas;P. Gerolymatos;A. Tsakalidis;Giannis Tzimas
通讯作者:
Giannis Tzimas
DOI:
--
发表时间:
1991
期刊:
International Multi-Conference on Systems, Signals & Devices
影响因子:
--
作者:
H. Kriegel;Holger Horn;Michael Schiwietz
通讯作者:
Michael Schiwietz
DOI:
--
发表时间:
1996
期刊:
International Conference on Information and Knowledge Management
影响因子:
--
作者:
Yong;Ho;Nam;C. Chung
通讯作者:
C. Chung
DOI:
--
发表时间:
1981
期刊:
Very Large Data Bases Conference
影响因子:
--
作者:
A. Frank
通讯作者:
A. Frank
DOI:
--
发表时间:
2001
期刊:
International Symposium on Spatial and Temporal Databases
影响因子:
--
作者:
K. Kanth;S. Ravada
通讯作者:
S. Ravada