Combining passages in the monolingual task with the IR-n system

Authors:
Fernando Llopis;Elisa Noguera
Affiliations:
Grupo de investigación en Procesamiento del Lenguaje Natural y Sistemas de Información, Departamento de Lenguajes y Sistemas Informáticos, University of Alicante, Spain;Grupo de investigación en Procesamiento del Lenguaje Natural y Sistemas de Información, Departamento de Lenguajes y Sistemas Informáticos, University of Alicante, Spain
Venue:
CLEF'05 Proceedings of the 6th international conference on Cross-Language Evalution Forum: accessing Multilingual Information Repositories
Year:
2005

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Abstract

The paper describes our participation in the monolingual tasks at CLEF 2005. We submitted results for the following languages: French, Portuguese, Bulgarian and Hungarian, using a passage retrieval system. We focused on a version of this system that combines passages of different size to improve retrieval performance. After an analysis of our experiments and of the official results at CLEF, we find that our passage retrieval combination model achieves considerably improved scores.