Author(s): MACIEL, R. J. S.; SILVA, M. A. S. da; MATOS, L. N.; DOMPIERI, M. H. G.

Summary: This article presents the application of the Self-Organizing Maps (SOM) as an exploratory tool for automatic territorial zoning by combining the handle of categorical data and the other for automatic clustering. The SOM online learning algorithm had been chosen to treat categorical data by using the dot product method and the Sorense-Dice binary similarity coefficient. To automatically perform a spatial clustering, an adaptation of the automatic clustering Costa-Netto algorithm had been also proposed. The correspondence analysis had been used to examine the profiles of each homogeneous zones. To explore the approach it has been performed the territorial zoning of the Alto Taquari River Basin, Brazil, using as input data a set of thematic maps. The results indicate the applicability of the approach to perform the exploratory territorial zoning.

Publication year: 2017

Types of publication: Paper in annals and proceedings

Unit: Embrapa Digital Agriculture

Keywords: Alto Taquari River Basin, Análise espacial, Bacia do Alto Taquari, Correspondence analysis, Exploratory spatial analysis, Maps, Self-organizing maps, Similarity coefficients, Thematic maps, Zoneamento, Zoning