Results 1 to 10 of about 22,408 (308)
LocationSpark: In-memory Distributed Spatial Query Processing and Optimization [PDF]
Frontiers in Big Data, 2020 Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing.
Mingjie Tang +5 more
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Design and Implementation of Spatial Operators and Energy-Efficient Query Processing Strategy in Wireless Sensor Network Database System [PDF]
International Journal of Distributed Sensor Networks, 2015 Database applications in wireless sensor networks very often demand data collection from sensor nodes of specific target regions. Design and development of spatial query expressions and energy-efficient query processing strategy are important issues for ...
Chong sok Lim +3 more
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Improved Spatial Query Processing Framework for Spatial Data
Procedia Computer Science, 2018 Abstract Support of immoderate preferred overall performance queries on huge volumes of spatial records has grown to be increasingly more important in lots of software domains, along with geospatial problems in several disciplines, vicinity based services. A significant elegance of longitudinal probes is connected to latitudinal grids (e.g.
S. Karthi, S. Prabu
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QoS-Aware Approximate Query Processing for Smart Cities Spatial Data Streams [PDF]
Sensors, 2021 Large amounts of georeferenced data streams arrive daily to stream processing systems. This is attributable to the overabundance of affordable IoT devices.
Isam Mashhour Al Jawarneh +4 more
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Efficient Processing of Top-k Frequent Spatial Keyword Queries [PDF]
Scientific Reports, 2021 AbstractThe rapid popularization of high-speed mobile communication technology and the continuous development of mobile network devices have given spatial textual big data (STBD) new dimensions due to their ability to record geographical objects from multiple sources and with complex attributes.
Tao Xu +5 more
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Unbounded Spatial Data Stream Query Processing using Spatial Semijoins
Journal of Ubiquitous Systems and Pervasive Networks, 2021 In this paper, the problem of query processing in spatial data streams is explored, with a focus on the spatial join operation. Although the spatial join has been utilized in many proposed centralized and distributed query processing strategies, for its application to spatial data streams the spatial join operation has received very little attention ...
Wendy Osborn
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Advanced query processing on spatial networks
, 2006 Recent advances in GPS and mobile communication technologies have allowed applications to emerge that can access and exploit location information about (moving) objects on road networks. Location-based services enable car drivers to search for facilities such as restaurants, shops, and car-parks close to their route.
Man-lung Yiu
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Skyline query processing in Spatial Hadoop
, 2014 Το MapReduce είναι ένα προγραμματιστικό μοντέλο που επιτρέπει την επεξεργασία μεγάλου όγκου δεδομένων σε ένα cluster από μηχανήματα. Ένα MapReduce job διαμοιράζει τα δεδομένα εισόδου σε ένα σύνολο από ανεξάρτητα κομμάτια τα οποία επεξεργάζονται από τις map διεργασίες παράλληλα.
Δημήτριος Περτέσης
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Efficient Spatial Query Processing in Urban Environments
, 2019 Location-based services (LBSs) have entered into people’s daily lives with the evolution of telecommunication technologies. LBSs are the services that consider the locations of users to provide tailored information. We study a variety of location-based queries in urban environments.
M G GAMINDA CHALUKA RUWANGA SALGADO
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Spatial OLAP query engine: processing aggregate queries on spatial OLAP data
, 2009 A spatial OLAP can be characterised as a practical union of OLAP analysis and geographic mapping. A spatial OLAP query has a spatial confinement along with the conventional non-spatial predicate. An existing framework we opt for is to convert a spatial OLAP query into a set of queries for a general-purpose ROLAP engine. However, little has been done at
Yong-Chul Choi
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