A Description Logic System for Learning in Complex Domains.
Jordi Álvarez · 1998
This paper introduces YAYA 1 , a Description Logic system focused towards learning complex interrelations among objects. YAYA Concept Language (YCL) is quite restricted; although it introduces a limited use of variables. Language limited expressiveness in combination with a special inference mechanism allow YAYA to achieve its main goal: to acquire a model (TBox) from a set of examples that allows it to complete the information of new sets of (incomplete) examples from the same domain. 1 Introduction Knowledge structuring and reasoning services provided by Description Logics can be very useful for Machine Learning tasks. Nevertheless, little attention has been paid to defining Concept Languages suitable for acquiring the model we will use for reasoning purposes. CCLASSIC [ Ventos, 1996 ] is an example. [ Cohen and Hirsh, 1994 ] study learnability properties of CoreClassic, proposing an efficiently learnable subset of it. In this paper we introduce a new Description Logic system cal...