TobbiSouhila - CherietAmel2024-09-192024-09-192022http://dspace.univ-khenchela.dz:4000/handle/123456789/6663The concept of similarity between information resources is nowadays at the heart of intense research studies. The objective is to be able to measure with the most adequate precision the degree of similarity between these resources In this sense, several similarity measures have been developed, but their efficiency remains subject to criticism and opinions to bring an improvement. In this thesis, we present a new measure of semantic similarity in experiments showing a new improvement of the precision of similarity between documentary resources.enModeling and experimentation of a new measure of semantic similarity in a Conceptual hierarchyThesis