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Topological queries in spatial databases

open access: yesProceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Papadimitriou, CH., Suciu, D., Vianu, V.
openaire   +2 more sources

Building a Spatial Database for Romanian Archaeological Sites [PDF]

open access: yesDatabase Systems Journal, 2011
Spatial databases are a new technology in the database systems which allow storing, retrieving and maintaining geospatial data. This paper describes the steps which we have followed to model, design and develop a spatial database for Romanian ...
Aura-Mihaela MOCANU, Manole VELICANU
doaj  

The Invisible Forest: Conservation Easement Databases and the End of the Clandestine Conservation of Natural Lands [PDF]

open access: yes, 2011
Olmsted talks about invisible forest refers to forest lands -- and, for that matter, any other land types -- protected by a perpetual conservation easement, the existence and location of which are concealed from the public, whether deliberately or ...
Olmsted, James L.
core   +1 more source

Logical aspects of spatial databases [PDF]

open access: yes, 2011
Spatial data and first-order logic - Capturing first-order geometric properties - First-order topological properties of plain sets - Conclusion on first-order topological properties - Point-based logics for geometric queries - Plane graphs - Spatial datalog and first-order logic extend with a while-loop - First-order logic extended with transitive ...
KUIJPERS, Bart, VAN DEN BUSSCHE, Jan
openaire   +2 more sources

Large-scale spatial population databases in infectious disease research

open access: yesInternational Journal of Health Geographics, 2012
Modelling studies on the spatial distribution and spread of infectious diseases are becoming increasingly detailed and sophisticated, with global risk mapping and epidemic modelling studies now popular.
Linard Catherine, Tatem Andrew J
doaj   +1 more source

Use of Landsat images for yield evaluation within a small plot

open access: yesPlant, Soil and Environment, 2014
Many factors can influence crop yield. One of the most important factors is topography, which can play a crucial role especially in dry years. Plant variability can be monitored by many methods.
J. Kumhálová   +4 more
doaj   +1 more source

Efficient storage of heterogeneous geospatial data in spatial databases

open access: yesJournal of Big Data, 2019
The no-schema approach of NoSQL document stores is a tempting solution for importing heterogenous geospatial data to a spatial database. However, this approach means sacrificing the benefits of RDBMSes, such as existing integrations and the ACID ...
Atle Frenvik Sveen
doaj   +1 more source

A generic method for improving the spatial interoperability of medical and ecological databases

open access: yesInternational Journal of Health Geographics, 2017
Background The availability of big data in healthcare and the intensive development of data reuse and georeferencing have opened up perspectives for health spatial analysis.
A. Ghenassia   +6 more
doaj   +1 more source

TECHNIQUES AND METHODS OF GIS FOR REGIONAL DEVELOPMENT [PDF]

open access: yes
The paper presents some techniques and methods of geographic informatics systems, adapted and applied to the regional development applications. The characteristics of spatial databases, as they are required for regional applications are presented in the ...
Adriana REVEIU
core  

Interoperabilità e accessibilità dei dati topografici. Integrazione, aggiornamento e generalizzazione delle banche dati della Regione Toscana

open access: yesRi-vista: Ricerche per la Progettazione del Paesaggio, 2015
The Project that involves the Italian Institute “Centro Interuniversitario di Scienze del Territorio” and the Italian Regional Institution “Regione Toscana” is the background of the presented research that was activated to verify the potential use of ...
Christian Ciampi   +3 more
doaj   +1 more source

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