Results 31 to 40 of about 13,582,146 (349)
QML: a hybrid spatial index structure
Tongxin xuebao, 2021 In order to enrich the functionalities of existing learned multidimensional indexes and improve the efficiency， the dynamic data segmentation algorithm DDSA was proposed， which could preserve the data distribution characteristics.A hybrid spatial index ...
Dong CUI +3 more
doaj +2 more sources
Spatial color indexing and applications [PDF]
Sixth International Conference on Computer Vision (IEEE Cat. No.98CH36271), 2002 We suggest the use of the color correlogram as a generic indexing tool to tackle various computer vision problems. Correlograms were shown to be very effective for content-based image retrieval. We adapt the correlogram to handle the problems of image subregion querying, object localization, object tracking, and cut detection.
Jing Huang 0019 +3 more
openaire +1 more source
, 2021 The Covid-19 pandemic has spread throughout the world, including Indonesia. The increase in Covid-19 cases in Indonesia is influenced by long holidays.
Yakhamid, Rezky Yayang
core +1 more source
Spatial statistics applied to soybean production data from Paraná State for 2003-04 to 2009-10 crop-years [PDF]
Engenharia 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
Dynamic spatial index for efficient query processing on the cloud
Journal of Cloud Computing, 2017 Data owners with large volumes of data can outsource spatial databases by taking advantage of the cost-effective cloud computing model with attractive on-demand features such as scalability and high computing power.
Ibrahim Kamel +2 more
semanticscholar +1 more source
Geo-Gap Tree: A Progressive Query and Visualization Method for Massive Spatial Data
IEEE 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
Journal 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
Spatial Indexing for Scalability in FCA
, 2006 The paper provides evidence that spatial indexing structures offer faster resolution of Formal Concept Analysis queries than B-Tree/Hash methods. We show that many Formal Concept Analysis operations, computing the contingent and extent sizes as well as listing the matching objects, enjoy improved performance with the use of spatial indexing structures ...
Ben Martin 0002, Peter W. Eklund
openaire +4 more sources
Time Varying Spatial Downscaling of Satellite-Based Drought Index
Remote 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
IEEE Access, 2017 One of the fundamental tasks for spatial index trees constructed in wireless sensor networks is to determine the sensors, which can participate in the region query accurately and quickly. Most of the existing works focus on constructing the spatial index
Jine Tang +3 more
semanticscholar +1 more source