Arnaud Simon's scientific contributions
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Publications (6)
Colloque avec actes et comité de lecture.
Dans cet article, nous étudions certains aspects que peut prendre le processus de classification dans le cadre des systèmes de représentation de connaissances par objets. Nous nous intéressons essentiellement aux opérations de classification de classes et d'instances. Nous évoquons ensuite trois applications particulièrement importantes dans le cad...
ion and Indexes A case base can be AEat or partially ordered when there exists a partial ordering that can be used to compare cases according to their content. The hierarchical organization of a case base can be based on abstractions of cases. Abstraction allows one to compare cases, especially when problem statements are given in natural language...
. Position paper for the Workshop on Knowledge Representation Meets Databases (krdb'96 at ecai'96, Budapest) . 1 INTRODUCTION In this position paper, we relate our experiments with the design of a data mining system for use in the field of medicine. The goal of the system is to analyze administrative medical data, e.g. questionnaires about children...
Citations
... The support supp(A∪B) of the rule is equivalent to the number of individuals of the verifying both properties A and B, and the confidence conf(A∪B) is given by: conf(A∪B) = supp(A∪B)/supp(A). An approach proposed by [28] shows that a subset of association rules can be obtained by following the direct links of heritage between the concepts in the Galois lattice. Even if no satisfactory solution regarding the rule computation time have been found, an attempt to solve the rule selection problem by combining rules evaluation measures is described in [3]. ...
... À l'heure actuelle, on définit la fouille ou extraction de connaissances à partir de données comme une activité consistant à analyser un ensemble de données brutes de façon à en extraire des informations qui peuvent être considérées comme des éléments de connaissances et donc devenir exploitables [18, 16, 10, 14] . Un système de fouille de données s'articule généralement autour de quatre composantes principales : ...
... Nous nous plaçons dans le cadre des systèmes de représentation de connaissances par objets — ou systèmes de RCO — [Simon et al.,1998] l'extension de la classe. Dans l'approche considérée, un objet peut également être créé sans classe de référence, tout comme un prototype dans un langage de prototypes [Dony et al.,1998] : dans ce cas, l'objet est considéré comme une instance de ¢ , la racine de . ...
... The last argument is a Boolean value that is true if only direct instances should be retrieved.Figure 3 shows the use of GTO. Similar retrieval operations, based on instance recognition and concept classification , have been proposed in the literature [8,12] that can be seen as a particularization of GTO. Instance recognition. ...
