Exploratory data analysis through the integrationof visualization techniquesin Geographical Information Systems
Document title: Exploratory data analysis through the integrationof visualization techniquesin Geographical Information Systems
Journal: Revista técnica de la Facultad de Ingeniería. Universidad del Zulia
Database: PERIÓDICA
System number: 000446634
ISSN: 0254-0770
Authors: 1
1
2
Institutions: 1Universidad Central "Marta Abreu" de Las Villas, Centro de Estudios de Informática, Santa Clara, Villa Clara. Cuba
2Universidad de Granada, Granada. España
Year:
Volumen: 38
Number: 1
Pages: 83-91
Country: Venezuela
Language: Español
Document type: Artículo
Approach: Analítico
English abstract Exploratory data analysis constitutes a challenge for scientists and analysts of multiples disciplines.Most current methods and tools do not allow for analyzing effectively several variables simultaneously. This paper addresses the problem of visual analysis of temporal sequences of multiple variables using multiparameter visualization techniques in geographical information systems. The concepts and methods developed here were implemented as an extension to gvSIG GIS, thus demonstrating the feasibility of this approach for extracting information and knowledge from the original data. A case study with global climate data containing 9 variables with 1224 monthly records from 1901 to 2002 is exposed. Information is given for the 67,420 cells that correspond to the Earth’s land surface, where each cell occupies an area of 25km by 25km. Also, a module for handling scientific data formats was developed for gvSIG that allow storing all information in compact form for effective reading
Disciplines: Matemáticas,
Geociencias
Keyword: Análisis de datos,
Minería de datos,
Sistemas de Información Geográfica (SIG),
Visualización de información
Keyword: Data analysis,
Data mining,
Geographic Information Systems (GIS),
Information visualization
Full text: https://produccioncientificaluz.org/index.php/tecnica/article/view/19887/19827