Overview of the ImageCLEF 2006 photographic retrieval and object annotation tasks
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Information retrieval with geographical references. Relevant documents filtering vs. query expansion
Information Processing and Management: an International Journal
Using query reformulation and keywords in the geographic information retrieval task
CLEF'08 Proceedings of the 9th Cross-language evaluation forum conference on Evaluating systems for multilingual and multimodal information access
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This paper describes the first participation of the SINAI group of the University of Jaén in GeoCLEF 2006. We have developed a system made up of three main modules: the Translation Subsystem, that works with queries into Spanish and German against English collection; the Query Expansion subsystem, that integrates a Named Entity Recognizer, a thesaurus expansion module and a geographical information-gazetteer module; and the Information Retrieval subsystem. We have participated in the monolingual and the bilingual tasks. The results obtained shown that the use of geographical and thesaurus information for query expansion does not improve the retrieval in our experiments.