Using High-Performance Computing to Address the Challenge of Land Use/Land Cover Change Analysis on Spatial Big Data
Using High-Performance Computing to Address the Challenge of Land Use/Land Cover Change Analysis on Spatial Big Data
复制标题
利用高性能计算应对空间大数据土地利用/土地覆盖变化分析的挑战
DOI:
10.3390/ijgi7070273
复制
发表时间:
2018-07
影响因子:
3.4
通讯作者:
徐胜华
中科院分区:
文献类型:
--
作者:
亢晓琛;刘纪平;董春;徐胜华
Land use/land cover change (LUCC) analysis is a fundamental issue in regional and global.geography that can accurately reflect the diversity of landscapes and detect the differences or changes.on the earth’s surface. However, a very heavy computational load is often unavoidable, especially.when processing multi-temporal land cover data with fine spatial resolution using more complicated.procedures, which often takes a long time when performing the LUCC analysis over large areas..This paper employs a graph-based spatial decomposition that represents the computational loads.as graph vertices and edges and then uses a balanced graph partitioning to decompose the LUCC.analysis on spatial big data. For the decomposing tasks, a stream scheduling method is developed.to exploit the parallelism in data moving, clipping, overlay analysis, area calculation and transition.matrix building. Finally, a change analysis is performed on the land cover data from 2015 to 2016 in.China, with each piece of temporal data containing approximately 260 million complex polygons..It took less than 6 h in a cluster with 15 workstations, which was an indispensable task that may.surpass two weeks without any optimization.
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DOI:
10.1016/j.compenvurbsys.2010.04.001
发表时间:
2010-07
期刊:
Comput. Environ. Urban Syst.
影响因子:
--
作者:
Chaowei Yang;R. Raskin;M. Goodchild;M. Gahegan
通讯作者:
Chaowei Yang;R. Raskin;M. Goodchild;M. Gahegan
DOI:
10.1016/j.isprsjprs.2014.01.008
发表时间:
2014-04-01
影响因子:
12.7
作者:
Huang, Xin;Lu, Qikai;Zhang, Liangpei
通讯作者:
Zhang, Liangpei
影响因子:
2
作者:
刘纪平;亢晓琛;董春;徐胜华
通讯作者:
徐胜华
DOI:
10.1109/sfcs.1991.185417
发表时间:
1991-09
期刊:
[1991] Proceedings 32nd Annual Symposium of Foundations of Computer Science
影响因子:
--
作者:
G. Miller;S. Teng;S. Vavasis
通讯作者:
G. Miller;S. Teng;S. Vavasis
影响因子:
3.9
作者:
B. Nour-Omid;A. Raefsky;G. Lyzenga
通讯作者:
B. Nour-Omid;A. Raefsky;G. Lyzenga