  We propose in this paper a method for measuring the similarity between
ontological concepts and terms. Our metric can take into account not only the
common words of two strings to compare but also other features such as the
position of the words in these strings, or the number of deletion, insertion or
replacement of words required for the construction of one of the two strings
from each other. The proposed method was then used to determine the ontological
concepts which are equivalent to the terms that qualify toponymes. It aims to
find the topographical type of the toponyme.
