Multi-facet Document Representation and Retrieval
Résumé
This paper presents our participation in ImageCLEF2011, in the two tasks: ad-hoc image-based retrieval and case-based retrieval, of the medical retrieval track. We participated through a simple IR model based on three hypotheses: 1) the amount of overlap between a document and a query, 2) the descriptive power of an indexing element, and 3) the discriminative power of an indexing element. We used three types of indexing elements: ngrams, keywords, and concepts, for building and checking the e ectiveness of multi-facet document representation. Although of the simplicity of our model in both documents' representation and retrieval, we could obtain good results. The eighth out of 64 runs in the ad-hoc image-based retrieval task, and the fth out of 35 runs in the case-based retrieval task.
Domaines
Recherche d'information [cs.IR]Origine | Fichiers produits par l'(les) auteur(s) |
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