Results 141 to 150 of about 1,078,281 (196)

Spatial Databases

2005
Section I: Modeling and Systems, Chapter I. Survey on Spatial Data Modeling Approaches, Chapter II. Integrating Web Data and Geographic Knowledge into Spatial Databases, Section II: Indexing Techniques, Chapter III. Object-Relational Spatial Indexing, Chapter IV. Quadtree-Based Image Representation and Retrieval, Chapter V.
Shashi Shekhar, Pusheng Zhang, Sanjay Chawla   +2 more
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Spatial Databases

2017
Spatial databases maintain space information which is appropriate for applications where there is need to monitor the position of an object or event over space. Spatial databases describe the fundamental representation of the object of a dataset that comes from spatial or geographic entities.
Grace L. Samson, Joan Lu, Mistura M. Usman, Qiang Xu   +3 more
openaire   +1 more source

Research of spatial database based on spatial database engine

SPIE Proceedings, 2007
With increasing demands of GIS applications system in a complex, integrated, and other areas, the spatial data are required rapid growth for the systems, and users are more and more on the demand spatial data. The method which traditional documents express spatial data is obviously unable to meet these needs.
Mengquan Wu, Wuihong Cui, Xiaodong Yang, Yongqi Huang   +3 more
openaire   +1 more source

Spatial Databases

2007
Spatial database research has continued to advance greatly since three decades ago, addressing the growing data management and analysis needs of spatial applications. This research has produced a taxonomy of models for space, conceptual models, spatial query languages and query processing, spatial file organization and indexes, and spatial data mining.
Gandhi, Vijay, Kang, James, Shekhar, Shashi   +2 more
openaire   +1 more source

Genericity in Spatial Databases

2000
In 1980, Chandra and Harel investigated, in the context of the relational database model, which queries are “reasonable”. They characterized this class of queries by means of the concept of genericity, which has since taken a central position in the theory of computable queries.
Kuijpers, Bart, van Gucht, D.
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Spatial Network Databases

2009
A Spatial Database is a database that offers spatial data types, a query language with spatial predicates, spatial indexing techniques, and efficient processing of spatial queries. All these fields have attracted the focus of researchers over the past 25 years.
Betsy George, Shashi Shekhar
openaire   +2 more sources

Optimizing Spatial Databases

Informatica Economica, 2010
This paper describes the best way to improve the optimization of spatial databases: through spatial indexes. The most commune and utilized spatial indexes are R-tree and Quadtree and they are presented, analyzed and compared in this paper. Also there are given a few examples of queries that run in Oracle Spatial and are being supported by an R-tree ...
Anda VELICANU, Åžtefan OLARU
openaire  

Decomposing spatial databases and applications

Proceedings 11th International Workshop on Database and Expert Systems Applications, 2002
Topological invariants of spatial databases can act as a basic structure to tackle relevant problems in the field. It turns out that the main concern in these problems is the manipulation of topological invariants by means of efficient algorithms. To this aim, we introduce the notion of boundary decomposition of a topological invariant and give a ...
CICERONE, SERAFINO, FRIGIONI, DANIELE, Di Felice P.   +2 more
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Clustering in Dynamic Spatial Databases

Journal of Intelligent Information Systems, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, J., Hsu, W., Lee, M.L.
openaire   +2 more sources