Utilize este identificador para referenciar este registo: http://hdl.handle.net/20.500.12253/304
Título: Adding Geographic Scopes to Web Resources
Autores: Silva, Mário
Martins, Bruno
Chaves, Marcirio
Cardoso, Nuno
Afonso, Ana Paula
Palavras-chave: geography
web
texts
Data: 5-Jul-2006
Editora: Elsevier Science
Resumo: Many Web pages are rich in geographic information and primarily relevant to geographically limited communities. However, existing IR systems only recently began to offer local services and largely ignore geo-spatial information. This paper presents our work on automatically identifying the geographical scope of Web documents, which provides the means to develop retrieval tools that take the geographical context into consideration. Our approach makes extensive use of an ontology of geographical concepts, and includes a system architecture for extracting geographic information from large collections of Web documents. The proposed method involves recognising geographical references over the documents and assigning geographical scopes through a graph ranking algorithm. Initial evaluation results are encouraging, indicating the viability of this approach.
URI: http://hdl.handle.net/10884/304
Aparece nas colecções:A CTIC/STI- Artigos

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