Results 171 to 180 of about 2,348 (194)

A Storage Method for Large Scale Moving Objects Based on PostGIS

2016
Storing and managing the large scale moving objects data is one of the research hotspots and difficulties in data mining, trajectory analyzing, location-based services and many other applications. To solve these problems, firstly we design the trajectory point representing model, the trajectory representing model, the moving object data storage model ...
Kai Sheng, Zefang Li, Dechao Zhou
openaire   +1 more source

Pg-Trajectory: A PostgreSQL/PostGIS Based Data Model for Spatiotemporal Trajectories

2016 IEEE International Conferences on Big Data and Cloud Computing (BDCloud), Social Computing and Networking (SocialCom), Sustainable Computing and Communications (SustainCom) (BDCloud-SocialCom-SustainCom), 2016
Due to the tremendous advances in GPS and location-based web services, highly available spatiotemporal trajectory data poses an important challenge - knowledge discovery from trajectories. Knowledge discovery tasks on trajectory big data such as classification, clustering and outlier detection require a dedicated data model, which can support various ...
Ahmet Küçük, Shah Muhammad Hamdi, Berkay Aydin, Michael A. Schuh, Rafal A. Angryk   +4 more
openaire   +1 more source

A PostGIS extension to support advanced spatial data types and integrity constraints

Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2017
Geometric primitives defined by OGC and ISO standards, implemented in most modern spatially-enabled database management systems (DBMS), are unable to capture the semantics of richer representation types, as found in current geographic data models.
Luís Eduardo Oliveira Lizardo, Clodoveu Augusto Davis Junior   +1 more
openaire   +1 more source

Vector–raster server-side analysis: a PostGIS benchmark

Applied Geomatics, 2013
Report generation from coverages around points of interest (POIs) or in areas of interest (AOIs) is a common need in thematic research projects. The extracted information adds value to the POIs or AOIs dataset by enriching its information content. In a common scenario, POIs or AOIs are usually vector data whereas background thematic datasets are often ...
openaire   +2 more sources

Parallel algorithm for improving the performance of spatial queries in SQL: The use cases of SQLite/SpatiaLite and PostgreSQL/PostGIS databases

Computers and Geosciences, 2021
Mateusz Ilba
exaly  

Разработка системы анализа векторных данных посредством PostGIS

2018
В данной работе исследуются возможности для повышения скорости выполнения операций над геопространственными данными за счет использования пространственной базы данных. Целью работы является разработка системы анализа векторных геоданных в формате Shapefile, посредством PostGIS, ключевой функцией которой является пересечение шейп-файлов.
openaire   +1 more source

OGC specifikacija i primjena PostGIS-a

2008
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openaire   +1 more source

PERANCANGAN EXTENDED GEOGRAPHIC SEARCH MENGGUNAKAN POSTGIS

2011
Pencarian objek geografi dan pembangkitan peta secara on the fly merupakan satu tantangan dalam sistem informasi pariwisata. Pencarian objek dan pembangkitan peta tersebut berguna untuk membantu Tourists Decision Making. Salah satu bentuk pencarian objek adalah extended geographic search.
openaire   +1 more source

VOXEL DATA MANAGEMENT AND ANALYSIS IN POSTGRESQL/POSTGIS UNDER DIFFERENT DATA LAYOUTS

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Bernardus Gorte, Sisi Zlatanova, Zlatanova S   +2 more
exaly  

PostGIS

2011
openaire   +1 more source