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García Cumbreras, M.A.; Perea-Ortega, J.M.; García Vega, M.; Ureña López, L.A.: Information retrieval with geographical references : relevant documents filtering vs. query expansion (2009)
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Rushdi-Saleh, M.; Martín-Valdivia, M.T.; Ureña-López, L.A.; Perea-Ortega, J.M.: OCA: Opinion corpus for Arabic (2011)
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Perea-Ortega, J.M.; Martín-Valdivia, M.T.; Ureña-López, L.A.; Martínez-Cámara, E.: Improving polarity classification of bilingual parallel corpora combining machine learning and semantic orientation approaches (2013)
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