Spatial Data Mining
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Preprocessing procedures and supervised classification applied to a database of systematic soil survey
ABSTRACT: Data Mining techniques play an important role in the prediction of soil spatial distribution in systematic soil surveying, though existing methodologies still lack standardization and a full understanding of their capabilities. The aim of this work was to evaluate the performance of preprocessing procedures and supervised classification approaches
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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2. STRATEGY FOR EXTRACTION OF FOURSQUARE’S SOCIAL MEDIA GEOGRAPHIC INFORMATION THROUGH DATA MINING
Resumo Este trabalho tem por objetivo a aquisição de dados geográficos do aplicativo Foursquare, empregando mineração de dados para efetuar análises exploratórias e espaciais da distribuição de pontos turísticos e de sua distribuição de densidade no município do Rio de Janeiro. Desta forma, seguindo a metodologia de Extração, Transformação e
Bol. Ciênc. Geod.. Publicado em: 18/04/2019
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3. COMPARATIVE ASSESSMENT BETWEEN PER-PIXEL AND OBJECT-ORIENTED FOR MAPPING LAND COVER AND USE
ABSTRACT: The traditional per-pixel classification methods consider only spectral information, and may be limited. Object-based classifiers, however, also consider shape and texture, firstly segmenting the image, and then classifying individual objects. Thus, a Geographic Object-Based Image Analysis (GEOBIA) was compared in conjunction with data mining techn
Eng. Agríc.. Publicado em: 2017-09
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4. Classificação da cobertura e uso do solo com imagens Worldview-2 utilizando mineração de dados e análise baseada em objetos / Land use and land cover classification with Worldview-2 images using data mining and object-based analysis
Os produtos provenientes dos novos sensores orbitais de alta resolução apresentam considerável potencial em estudos e aplicações sobre o ambiente urbano. A utilização dos dados destes sistemas sensores abre novas perspectivas para a extração automática de relevantes informações para o planejamento e gestão do ambiente. No entanto, para a eficien
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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5. Modelagem de fenômenos intempéricos e erosionais em vertentes : uma aproximação de suas componentes não-lineares com base em métodos de mineração de dados / Modeling of soil weathering on hillslopes : coping with nonlinearity and coupled processes using a data-driven approach
This Doctoral thesis aims to explore the relationship between soil physical-chemical properties and relief morphometry, and quantifying these relationships to build conceptual and predictive models. Self-organizing maps and Geographic Information Systems modeling are here used to investigate nonlinear correlations associated with chemical and physical denuda
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
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6. Contribuição metodológica para a pré-identificação de áreas adequadas à implantação de parques aquícolas no Reservatório de Nova Ponte - Minas Gerais / Methodological contribution for the delimitation of fish farms in tanks in the Reservoir of Nova Ponte - Minas Gerais
The purpose of this thesis is to propose a methodology for the delimitation of fish farms in tanks. The proposed methodology was applied in the reservoir of Nova Ponte - MG, with the cultivation in net cages of the Red-tailed Lambari (Astyanax fasciatus), Piracanjuba (Brycon orbygnianus) and Tilapia (Tilapia sp.) species, using GIS. It was surveyed the facto
Publicado em: 2009
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7. Modelagem espaço temporal do uso do solo e potencial de erosão no Vale do Ribeira / Spatio temporal modeling the soil use and potential of erosions in the Ribeira Valley
This paper comprises an experiment to map hidden patterns in multi-source data that could be associated with Pb geochemical soil anomalies. The study area is confined between the Apiaí Fold-Belt, hosts numerous Pb and Zn deposits; it was under the influence of regional Pb mining and Pb refinery factory activities until 1995; and exhibits soils enriched in P
Publicado em: 2008
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8. GEOLOGICAL AND GEOMECHANICS MODELLING 3D AND STABILITY ANALYSES 2D OF THE SLOPES OF THE MORRO DA MINA MINE, CONSELHEIRO LAFAIETE, MG, BRAZIL / MODELAGEM GEOLÓGICA E GEOMECÂNICA 3D E ANÁLISES DE ESTABILIDADE 2D DOS TALUDES DA MINA DE MORRO DA MINA, CONSELHEIRO LAFAIETE, MG, BRASIL
This work presents a methodology to develop geological and geomechanic models (3D) and to carry out stability analyses (2D) of rock slopes of open pit mine, based on data of Morro da Mina mine, provided by the mining company VALE. The methodology is divided in two stages: modelling and stability analyses. For the modelling, the software Petrel 2004, which al
Publicado em: 2008
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9. Enhancing spatial association rule mining in geographic databases / Melhorando a Mineração de Regras de Associação Espacial em Bancos de Dados Geográficos
A técnica de mineração de regras de associação surgiu com o objetivo de encontrar conhecimento novo, útil e previamente desconhecido em bancos de dados transacionais, e uma grande quantidade de algoritmos de mineração de regras de associação tem sido proposta na última década. O maior e mais bem conhecido problema destes algoritmos é a geração
Publicado em: 2007
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10. Mineração de regras de associação em dados georreferenciados / Mining of association rules in geographic data
Geographic information systems are used to store, manipulate, and analyze spatial data and its descriptive aspects. Spatial data analysis can be done by searching association rules that describe relationships between the data. However, georeferenced data present topological relations unknown to traditional mining association rule algorithms. To solve this pr
Publicado em: 2006
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11. Invertebrados de cavernas do Distrito Federal: diversidade, distribuição temporal e espacial
There are 4,153 registered caves in Brazil, but most cave studies has been done by observant cavers rather than part of surveying programs. A correlate problem is the lack of ertebrates were sampled by active seach (hand collecting and the register of rganisms) and by baited pitfall traps. The number of traps varied among caves due to their morphological and
Publicado em: 2006
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12. Implementação de uma metodologia para mineração de dados aplicada ao estudo de núcleos convectivos / Implementation of methodology for data mining applied to the study of convective nucleous
In this work, a methodology for data mining was implemented using the rough sets theory and applied to the study of convective nucleous. Data mining has been used to analyze large volumes of data trying to identify frequent correlations, patterns, and outliers, in the most varied domains of applications, including scientific research. In this study, data min
Publicado em: 2005