Automatic evaluation of geospatial data quality using web services
- DE ARAÚJO XAVIER, EMERSON MAGNUS
- Francisco Javier Ariza López Director
- Manuel Antonio Ureña Cámara Co-director
Defence university: Universidad de Jaén
Fecha de defensa: 05 June 2017
- Javier Nogueras Iso Chair
- José Rodríguez Avi Secretary
- Sebastián Mas Mayoral Committee member
Type: Thesis
Abstract
The geomatics sector is going through a data overload scenario which new geospatial datasets are generated almost daily. However there are few or nothing information about the quality of these datasets, and they should be evaluated aiming to provide users some information about their quality. In this context we propose a solution for the automatic quality evaluation of geospatial datasets using the web services platform. This approach is compound by automatic evaluation procedures for quality control of topological consistency, completeness, and positional accuracy described in the Brazilian quality standard. Some procedures require an external dataset for comparison purposes. Hence we provide a set of synthetic datasets and apply over them an experimental design aiming to select suitable methods to find the correspondences between datasets. The solution has an interoperability tier that links users and automatic procedures using the standardized interface of Web Processing Services (WPS).