Results 11 to 20 of about 534 (212)
QRB-tree Indexing: Optimized Spatial Index Expanding upon the QR-tree Index
ISPRS International Journal of Geo-Information, 2021 Support for region queries is crucial in geographic information systems, which process exact queries through spatial indexing to filter features and subsequently refine the selection.
Jieqing Yu, Yi Wei, Qi Chu, Lixin Wu
doaj +3 more sources
Spatial Indexing for Data Searching in Mobile Sensing Environments
Sensors, 2017 Data searching and retrieval is one of the fundamental functionalities in many Web of Things applications, which need to collect, process and analyze huge amounts of sensor stream data.
Yuchao Zhou +4 more
doaj +3 more sources
Sensors, 2018 With the rapid development of mobile devices and sensors, effective searching methods for big spatial data have recently received a significant amount of attention.
Bumjoon Jo, Sungwon Jung
doaj +3 more sources
Spatial Indexing for Scalability in FCA
Lecture Notes in Computer Science, 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 ...
Peter W Eklund, Eklund Peter
exaly +4 more sources
Indexing and partitioning the spatial linear model for large data sets.
PLoS ONE, 2023 We consider four main goals when fitting spatial linear models: 1) estimating covariance parameters, 2) estimating fixed effects, 3) kriging (making point predictions), and 4) block-kriging (predicting the average value over a region).
Jay M Ver Hoef +4 more
doaj +1 more source
Super-resolved trajectory-derived nanoclustering analysis using spatiotemporal indexing
Nature Communications, 2023 Single-molecule localization microscopy techniques are emerging as vital tools to unravel the nanoscale world of living cells by understanding the spatiotemporal organization of protein clusters at the nanometer scale.
Tristan P. Wallis +11 more
doaj +1 more source
IEEE Transactions on Knowledge and Data Engineering, 2003 Efficient processing of spatial joins is very important due to their high cost and frequent application in spatial databases and other areas involving multidimensional data. This paper proposes slot index spatial join (SISJ), an algorithm that joins a nonindexed data set with one indexed by an R-tree.
N. Mamoulis (Nikos), D. Papadias
openaire +4 more sources
Spatial Ambiguities Optimization in GIR [PDF]
EAI Endorsed Transactions on Scalable Information Systems, 2020 INTRODUCTION: Huge amount of geographically referenced information is available on World Wide Web and has become an excellent source for retrieval of desired information.
Arun Yadav, Jay Yadav, Divakar Yadav
doaj +1 more source
International Journal of Digital Earth, 2020 This paper proposes a novel data indexing scheme, the distributed access pattern R-tree (DAPR-tree), for spatial data retrieval in a distributed computing environment.
Jizhe Xia +6 more
doaj +1 more source
Area and shape distortions in open-source discrete global grid systems
Big Earth Data, 2022 A Discrete Global Grid System (DGGS) is a type of spatial reference system that tessellates the globe into many individual, evenly spaced, and well-aligned cells to encode location and, thus, can serve as a basis for data cube construction.
Alexander Kmoch +3 more
doaj +1 more source