Extraction of Business Information on the Web to Supply a Geolocated Search Service

International audienc

Extraction Des Informations d'entreprises

National audienc

Formalization of the whole-part relationship in the unified modeling language

A formal definition for the semantics of the Whole-Part relationship in the Unified Modeling Language or UML is introduced. This provides a fully directly usable specification which that can be incorporated into version 2.0 of UML. An improvement to the current metamodel fragment relating to relationships is proposed, supplemented by the introduction of axioms expressed in the Object Constraint Language or OCL. The overall formalizatlon relates to a clear and concise emphasis on carefully enunciated (primary) characteristics that apply to all instances of a new Whole-Part metatype. Specific kinds of the Whole-Part relationship are defined in terms of secondary characteristics, which must be possessed by subtypes: In UML 1.4, these are Aggregation (a.k.a. white diamond) and Composition (a.k.a. black diamond). Primary and secondary characteristics may then be consistently combined with each other. Consequently, this allows the possible introduction of supplementary forms of Whole-Part. Such a revision is necessary since Aggregation and Composition in UML 1.4 do not cover the full spectrum of Whole-Part theory

Automatic identification of research fields in scientific papers

International audienceThe TERRE-ISTEX project aims to identify scientific research dealing with specific geographical territories areas based on heterogeneous digital content available in scientific papers. The project is divided into three main work packages: (1) identification of the periods and places of empirical studies, and which reflect the publications resulting from the analyzed text samples, (2) identification of the themes which appear in these documents, and (3) development of a web-based geographical information retrieval tool (GIR). The first two actions combine Natural Language Processing patterns with text mining methods. The integration of the spatial, thematic and temporal dimensions in a GIR contributes to a better understanding of what kind of research has been carried out, of its topics and its geographical and historical coverage. Another originality of the TERRE-ISTEX project is the heterogeneous character of the corpus, including PhD theses and scientific articles from the ISTEX digital libraries and the CIRAD research center