Towards an IE and IR System Dealing with Spatial Information in Digital Libraries - Evaluation Case Study

Christian Sallaberry 1 Mustapha Baziz 1 Julien Lesbegueries 1 Mauro Gaio 1, 2
2 SIGNES - Linguistic signs, grammar and meaning: computational logic for natural language
Université Sciences et Technologies - Bordeaux 1, Inria Bordeaux - Sud-Ouest, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : This paper deals with spatial Information Extraction (IE) and Retrieval (IR) in Digital Libraries environments. The proposed approach (implemented within PIV(1) prototype) is based on a linguistic and semantic analysis of digital corpora and free text queries. First, we present requirements and a methodology of semantic annotation for automatic indexing and geo-referencing of text documents. Then we report on a case study where the spatial-based IR process is evaluated and compared to classical (statistical-based) IR approaches using first pure spatial queries and then more general ones dealing with both spatial and thematic scopes. The main result in these first experiments shows that combining a spatial approach with a classical (statistical-based) IR one improves in a significant way retrieval accuracy, namely in the case of general queries.
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Conference papers
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  • HAL Id : hal-01912940, version 1


Christian Sallaberry, Mustapha Baziz, Julien Lesbegueries, Mauro Gaio. Towards an IE and IR System Dealing with Spatial Information in Digital Libraries - Evaluation Case Study. ICEIS 2007 - Proceedings of the Ninth International Conference on Enterprise Information Systems, Volume HCI, Funchal, Madeira, Portugal, June 12-16, 2007, Jun 2007, Madeira, Portugal. pp.190-197. ⟨hal-01912940⟩



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