SINAI at ImageCLEFPhoto 2008
Miguel Ángel García Cumbreras, Manuel Carlos Díaz–Galiano, María Teresa Martín Valdivia, Luís Alfonso Ureña López · CLEF (Working Notes) · 2008
This paper describes the SINAI team participation in the ImagePhoto CLEF campaign. Last years translation approaches and difierent Information Retrieval systems were tested. In 2008 the imagePhoto task does not include multilingual queries, so translation methods are not necessary. This year the baseline experiment uses the parameters that obtain the best results in past campaigns. The novelty of our method consists of some flltered methods that are used to improve the results, using the cluster term and its WordNet synonyms. The combination of difierent weighting functions (Okapi and Tfldf ), the results obtained by the Information Retrieval systems Lemur and Jirs, and the use or not of automatic feedback complete the experimentation. The flltering process does not work well, because when the cluster term does not appear in a retrieved document, the document erased decrease the flnal precision.