Results 31 to 40 of about 425,485 (215)

Spatial statistics applied to soybean production data from Paraná State for 2003-04 to 2009-10 crop-years [PDF]

open access: yesEngenharia Agrícola, 2014
In the current study, we performed a soybean production spatial distribution analysis in Paraná State. Seven crop-year data, from 2003-04 to 2009-10, obtained from the Paraná Department of Agriculture and Supply (SEAB) were used to develop a Boxmap for ...
Victor H. R. Prudente   +4 more
doaj   +1 more source

Geo-Gap Tree: A Progressive Query and Visualization Method for Massive Spatial Data

open access: yesIEEE Access, 2019
Online visualization and query of massive geo-spatial data are facing increasing challenges with the explosive growth of location-based spatial datasets.
Wei Xiong   +5 more
doaj   +1 more source

Evaluation of interrelatedness of cities in the territorial space of Russia

open access: yesJournal of Economic Structures, 2022
The purpose of the article is to carry out the analysis of interrelatedness of cities in the territorial space of Russia. The evaluation method is based on the calculation of global and local Moran's indexes for determination of interrelatedness of the ...
Inna Manaeva   +2 more
doaj   +1 more source

Time Varying Spatial Downscaling of Satellite-Based Drought Index

open access: yesRemote Sensing, 2021
Drought monitoring is essential to detect the presence of drought, and the comprehensive change of drought conditions on a regional or global scale. This study used satellite precipitation data from the Tropical Rainfall Measuring Mission (TRMM), but ...
Hone-Jay Chu   +3 more
doaj   +1 more source

Value Transmission and Goal Evolution of Territorial Spatial Governance in the New Era: Response of the Territorial Spatial Planning Index System at the City and County Scale

open access: yesRedai dili, 2021
Through the establishment of the territorial spatial planning system, the logic of territorial spatial governance in the new era has gradually become clear, with ecological civilization construction as the strategic guidance, five development concepts ...
Yue Jun, Fan Pengcan
doaj   +1 more source

Spatial Index Method for Time Dependent Road Network [PDF]

open access: yesJisuanji gongcheng, 2019
When Points of Interest(POI) are sparsely distributed,the existing k-nearest neighbor query method in time dependent road network is inefficient and can not support multi-type POI queries efficiently.Therefore,a spatial index structure TDG based on POI ...
LI Jiajia,ZANG Yinxu,LIU Xiangyu,XIA Xiufeng,ZHU Rui
doaj   +1 more source

Construction and Preliminary Application of the Carbon-based Spatial Governance Performance Evaluation System ——Taking Zhejiang Province as an Example

open access: yesCSID Journal of Infrastructure Development, 2023
Carbon is generated through human socio-economic activities, with territorial space serving as the medium for these activities. Variations in spatial governance result in differences in the scale, intensity and efficiency of social and economic ...
Lin Qu, Ganlin Xia, Cunkuan Bao
doaj   +1 more source

A Distributed and Scalable Framework for Low-Latency Continuous Trajectory Stream Processing

open access: yesIEEE Access
In recent times, the widespread adoption of GPS-enabled devices has resulted in an exponential surge in the amount of spatio-temporal data streams.
Salman Ahmed Shaikh   +3 more
doaj   +1 more source

FESTIval: A versatile framework for conducting experimental evaluations of spatial indices

open access: yesMethodsX, 2020
The use of a spatial index is a common strategy to improve the performance of spatial queries in spatial database systems and Geographic Information Systems.
Anderson C. Carniel   +2 more
doaj   +1 more source

Towards a Similarity Index of network paths in Spatial Networks

open access: yesEuropean Journal of Geography, 2023
The mathematical analysis of a spatial network using graph theory and Geographical Information Systems (GIS) for path finding, has created the need to compare possible solutions to better solve spatial problems in road networks.
Panagiotis Agourogiannis   +3 more
doaj   +1 more source

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