Geolocalizador: um sistema de referência espaço-temporal indireta na web.

Abstract

The Internet has underpinned applications in different domains. One of the application domains that has been pushed towards web-based systems is spatial information systems. Currently, a huge volume of spatial data is being captured in different data formats (e.g. raster, vector) and stored somewhere on the Web. These data must be indexed in order to become useful and justify the high investment that has been done so far in their capture. Therefore, service for spatial data tools such as spatial searching engines and Gazetteers are demanded in order to better fulfill these requirements. In this thesis, we present a Web based Gazetteer, which aims to provide, via a GUI, services for spatial data in order to find place names. We use a thesaurus for query expansion and a spatial database for data persistence and spatial query manipulation.