Results 11 to 20 of about 437,980 (285)
Optimizing Spatial Databases [PDF]
Informatică economică, 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
Anda VELICANU, Ştefan OLARU
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Fuzzy Reliability in Spatial Databases [PDF]
Advances in Fuzzy Systems, 2013 Today it is very difficult to evaluate the quality of spatial databases, mainly for the heterogeneity of input data. We define a fuzzy process for evaluating the reliability of a spatial database: the area of study is partitioned in isoreliable zones ...
Ferdinando Di Martino, Salvatore Sessa
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Semantic-Linked Data Ontologies for Indoor Navigation System in Response to COVID-19
ISPRS International Journal of Geo-Information, 2021 Indoor navigation has become more important these days due to the current situation worldwide in the aftermath of the outbreak of the COVID-19 pandemic, posing an unparalleled threat amounting to a humanitarian crisis on a global scale. Indoor navigation
Abdullah Alamri
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Key Types of Anthropic Influence on Surface Waters, Components of Spatial Decision Support System for Prevention and Management of Floods (Firiza Basin) [PDF]
Aerul şi Apa: Componente ale Mediului, 2020 In the current climate change context, setting up a real time spatial decision support system for flood prevention and management is more than a necessity.
Daniel Andrei SABĂU +2 more
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La déforestation baisse en Amazonie. Vraiment ?
EchoGéo, 2023 The unexpected fall of deforestation in the Brazilian Amazon in 2022 has shown that deforestation phenomena are complex and that for many observers it is difficult to find their way in statistics and geospatial databases that are produced using different
François-Michel Le Tourneau
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Applied Sciences, 2022 The article considers the main sources of pollutionin the territory of the Republic of North Ossetia–Alania. A study of environmental geophysical factors in the city of Vladikavkaz was carried out at 126 points; indicators of noise pollution, electric ...
Vladislav Zaalishvili +3 more
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Assembling Cultural and Natural Values in Vernacular Landscapes: An Experimental Analysis
Remote Sensing, 2022 Cultural landscapes can host natural and cultural areas. However, often, this distinction is not clear cut and the attempts to clarify this blur the character of landscapes.
Pablo Altaba +2 more
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SPATIAL DATABASES OF AGRONOMIC GEOINFORMATION SYSTEMS
Siberian Journal of Life Sciences and Agriculture, 2022 The work is devoted to the development of spatial databases for the assessment of agricultural land. The geodatabase is aimed at geoinformation support of assessment, agroecological typing (groups, types of land) of agricultural lands, development of ...
Anna I. Pavlova
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Global Center Point Splitting: New Linear Node Splitting Algorithm for R-Trees [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2016 We introduce a new linear algorithm to split overflowed nodes of an R-tree index called the Global Center Point Splitting (GCPS) algorithm. The proposed method is an enhancement of the Quadratic splitting algorithm proposed by Guttmann (Guttman A, 1984 ...
Manar Arafat
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Spatial Multi-Criteria Analysis of Water-Covered Areas: District City of Katowice—Case Study
Remote Sensing, 2023 The following databases contains information on land use with water in Poland: Corine Land Cover (CLC), the Urban Atlas (UA); Database of Topographic Objects (BDOT) the digital Map of Poland’s Hydrographic Division (MPHP); and the Register of Lands and ...
Natalia Janczewska +3 more
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