Results 1 to 10 of about 16,952 (211)
Spatial Indexing for Data Searching in Mobile Sensing Environments [PDF]
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
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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
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DB-LIO: Database-Driven LiDAR–Inertial Odometry for Memory-Bounded Persistent Mapping [PDF]
SensorsThis paper proposes DB-LIO (database-driven LiDAR-inertial odometry), a simultaneous localization and mapping (SLAM) system that addresses memory scalability challenges in extended autonomous operation.
Hun-Hee Kim +3 more
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Efficient Management of High-Frequency Sensor Data Streams Using a Read-Optimized Learned Index [PDF]
SensorsThe rapid growth of sensor data in IoT and Digital Twins necessitates high-performance spatial indexing. Traditional indexes like Rtrees suffer from high storage overhead, while state-of-the-art learned indexes like GLIN encounter a “Refinement ...
Hu Luo +7 more
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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
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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
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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
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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
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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
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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
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