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Cardoso, N., and M. J. Silva, "A GIR architecture with semantic-flavored query reformulation", Proceedings of the 6th Workshop on Geographic Information Retrieval: ACM, pp. 8, 2010.
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Cardoso, N., D. S. Batista, F. J. Lopez-Pellicer, and M. J. Silva, "Where in the Wikipedia is that answer? the XLDB at the GikiCLEF 2009 task", Multilingual Information Access Evaluation I. Text Retrieval Experiments: Springer Berlin Heidelberg, pp. 305–309, 2010.
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Cardoso, N., P. Sousa, and M. J. Silva, "Experiments with geographic evidence extracted from documents", Evaluating Systems for Multilingual and Multimodal Information Access: Springer Berlin Heidelberg, pp. 885–893, 2009.
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Santos, D., N. Cardoso, P. Carvalho, I. Dornescu, S. Hartrumpf, J. Leveling, and Y. Skalban, "GikiP at GeoCLEF 2008: Joining GIR and QA forces for querying Wikipedia", Evaluating Systems for Multilingual and Multimodal Information Access: Springer, pp. 894–905, 2009.
Santos, D., N. Cardoso, P. Carvalho, I. Dornescu, S. Hartrumpf, J. Leveling, and Y. Skalban, "Getting geographical answers from Wikipedia: the GikiP pilot at CLEF", Working notes for the Cross Language Evaluation Forum, CLEF, pp. 17–19, 2008.
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Cardoso, N., M. J. Silva, and D. Santos, "Handling implicit geographic evidence for geographic ir", Proceedings of the 17th ACM conference on Information and knowledge management: ACM, pp. 1383–1384, 2008.
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Cardoso, N., P. Sousa, and M. J. Silva, "The university of lisbon at geoclef 2008", Working notes of CLEF, 2008.
Cardoso, N., D. Cruz, M. Chaves, and M. J. Silva, "Using geographic signatures as query and document scopes in geographic IR", Advances in Multilingual and Multimodal Information Retrieval: Springer Berlin Heidelberg, pp. 802–810, 2008.
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Cardoso, N., and M. J. Silva, "Query expansion through geographical feature types", Proceedings of the 4th ACM workshop on Geographical information retrieval: ACM, pp. 55–60, 2007.
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Cardoso, N., M. J. Silva, and B. Martins, "The University of Lisbon at CLEF 2006 ad-hoc task", Evaluation of multilingual and multi-modal information retrieval: Springer Berlin Heidelberg, pp. 51–56, 2007.
Martins, B., N. Cardoso, M. Chaves, L. Andrade, and M. J. Silva, "The university of lisbon at geoclef 2006", Evaluation of Multilingual and Multi-modal Information Retrieval: Springer Berlin Heidelberg, pp. 986–994, 2007.
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Cardoso, N., M. J. Silva, and M. Antunes, "Validação estat{ística dos resultados do Primeiro HAREM", Reconhecimento de entidades mencionadas em português: Documentação e atas do HAREM, a primeira avaliação conjunta na área, Cap{ítulo, vol. 5, pp. 59–77, 2007.
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Cardoso, N., B. Martins, D. Gomes, and M. J. Silva, WPT 03: a primeira colecção pública proveniente de uma recolha da web portuguesa, : Avaliação Conjunta: um novo paradigma no processamento computacional da l{íngua portuguesa, 2007.
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Silva, M. J., B. Martins, M. Chaves, A. Paula Afonso, and N. Cardoso, "Adding geographic scopes to web resources", Computers, Environment and Urban Systems, vol. 30, no. 4: Elsevier, pp. 378–399, 2006.
Cardoso, N., D. Santos, M. J. Silva, and S. Doutoral da Linguateca, "Automatic Query Reformulation using Contextual Information", quot; III Simpósio Doutoral da Linguateca 2006 (Faculdade de Ciências-Universidade de Lisboa 3-4 de Outubro de 2006), 2006.
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Cardoso, N., B. Martins, M. Chaves, L. Andrade, and M. J. Silva, "The XLDB group at GeoCLEF 2005", Accessing Multilingual Information Repositories: Springer Berlin Heidelberg, pp. 997–1006, 2006.
Cardoso, N., L. Andrade, A. Simões, and M. J. Silva, "The XLDB group at the CLEF 2005 ad-hoc task", Accessing Multilingual Information Repositories: Springer Berlin Heidelberg, pp. 54–60, 2006.
Cardoso, N., M. J. Silva, and M. Costa, "The XLDB group at CLEF 2004", Multilingual Information Access for Text, Speech and Images: Springer Berlin Heidelberg, pp. 245–252, 2005.
Cardoso, N., L. Andrade, A. Simões, and M. J. Silva, "The XLDB Group participation at CLEF 2005 ad hoc task", Cross Language Evaluation Forum: Working Notes for the CLEF 2005 Workshop, Wien, Austria, 2005.