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|Title:||Using Geographic Signatures as Query and Document Scopes in Geographic IR|
|Publisher:||Advances in Multilingual and Multimodal Information Retrieval: 8th Workshop of the Cross-Language Evaluation Forum, CLEF 2007, Springer|
|Abstract:||This paper reports the participation of the University of Lisbon at the 2007 GeoCLEF task. We adopted a novel approach for GIR, focused on handling geographic features and feature types on both queries and documents, generating signatures with multiple geographic concepts as a scope of interest. We experimented new query expansion and text mining strategies, relevance feedback approaches and ranking metrics.|
|Appears in Collections:||CTIC/STI - Comunicações a Conferências|
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