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MICAI
2010
Springer

Information Retrieval with a Simplified Conceptual Graph-Like Representation

9 years 4 months ago
Information Retrieval with a Simplified Conceptual Graph-Like Representation
We argue for that taking into account semantic relations between words in the text can improve information retrieval performance. We implemented the process of information retrieval with simplified Conceptual Graphlike structures and compare the results with those of the vector space model. Our semantic representation, combined with a small simplification of the vector space model, gives better results. In order to build Conceptual Graph-like representation, we have developed a grammar based on the dependency formalism and the standard defined for Conceptual Graphs (CG). We used noun premodifiers and noun post-modifiers, as well as verb frames, extracted from VerbNet, as a source of definition of semantic roles. VerbNet was chosen since its definitions of semantic roles have much in common with the CG standard. We experimented on a subset of the ImageClef 2008 collection of titles and annotations of medical images.
Sonia Ordoñez-Salinas, Alexander F. Gelbukh
Added 29 Jan 2011
Updated 29 Jan 2011
Type Journal
Year 2010
Where MICAI
Authors Sonia Ordoñez-Salinas, Alexander F. Gelbukh
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