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Un portail sémantique pour la gestion des connaissances en cancérologie

Mathieu d'Aquin 1
1 ORPAILLEUR - Knowledge representation, reasonning
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : This thesis presents an application and some extensions of the semantic Web principles and technologies for the building of a portal dedicated to knowledge management in oncology. OWL, the Web ontology language, is used for representing the knowledge contained in medical decision protocols. The inferences associated with OWL are applied for decision support for the purpose of protocol application. But the knowledge contained in the protocols is not sufficient to take into account all the possible situations and needs to be adapted for some particular cases. For this reason, we propose an extension of the semantic Web technologies in order to allow the representation of adaptation knowledge and to implement a case-based reasoning (CBR) mechanism integrated to the semantic Web infrastructure. Furthermore, in complex domains like oncology, there exist multiple viewpoints, that are different ways to consider the domain knowledge and different ways to use it. The idea of ontology does not take into account this multiplicity of viewpoints. For this reason, we have studied the knowledge representation formalisms that explicitly integrate viewpoints.We have chosen the C-OWL language in order to establish a multiple viewpoint representation of the knowledge contained in the protocols, in accordance with the semantic Web technologies. On the basis of this multiple viewpoint representation in C-OWL, a decentralized CBR mechanism is defined. It exploits the viewpoints to distribute CBR in several processes. The relations existing between viewpoints are then used to allow knowledge sharing and collaboration between these multiple processes. Following the application in oncology, the multiple viewpoint representation has shown contributions concerning some of the difficulties of knowledge engineering (acquisition, evolution), the building of the CBR mechanism (use of several cases, viewpoint combination) and the scalability of reasoning mechanisms for the semantic Web, including CBR.
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Contributor : Mathieu d'Aquin <>
Submitted on : Tuesday, February 28, 2006 - 11:53:15 AM
Last modification on : Friday, February 26, 2021 - 3:28:05 PM
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  • HAL Id : tel-00011698, version 1



Mathieu d'Aquin. Un portail sémantique pour la gestion des connaissances en cancérologie. Interface homme-machine [cs.HC]. Université Henri Poincaré - Nancy I, 2005. Français. ⟨tel-00011698⟩



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