The paper deals with the improvement of the MAOUSSC model (Modèle d'Aide et d'Orientation d'un Utilisateur au Sein des Systèmes de Codage) and system. Its specific purpose is the automation of the description of medical and surgical procedures. We have developed an automatic decomposition method using a linguistic and conceptual approach based on the UMLS knowledge base. This work concerns the processing of 100 procedure wordings from the digestive surgery domain. We introduce a prototype of such a system automating the decomposition through a web interface.
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