Geodiscover: mecanismo de busca especializado em dados geográficos / Geodiscover - A niche search engine to discover geospatial data

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Geospatial data are being broadly used to provide analysis and decisions in different domains of knowledge. The fast development of the Internet and the growth of digital content available led to the development of search engines that facilitate the recovery of information on the Web. However, these engines have limitations mainly when recovering specialized content. Geospatial data are created by local governments, companies and people, but these data are not available in a systematized way and they are not found by conventional search engines in an efficient way therefore such engines are not prepared to uncover this content. In this context, this thesis presents a niche search engine specialized in the discovery, indexing and classification of geospatial data available on the Web. We develop methods to discover geospatial data available on the Web analyzing at the same time the context of Web pages and the content of the geospatial data. A user-friendly interface was developed to query and recover the indexed files. In order to evaluate the search engine performance we used the measures of information retrieval Recall and Precision.

ASSUNTO(S)

search engine dados espaciais rastejador mecanismo de busca recuperação de informação em jipertextos spatial data geografic information system (gis) computaÇÃo aplicada crawler hypertext information retrieval sistemas de informações geográficas (sid) computer science

ACESSO AO ARTIGO

Documentos Relacionados