
388 Soft Computing and Its Applications
The most elaborated approximate reasoning method in logical/linguistic interpre-
tation is the so-called perception based logical deduction. The main idea is to consider
the linguistic description as a specic text, which has a topic (what we are speaking
about) and focus. Each rule is understood as local but vague information about the
relation between X and Y. The given prediction “X is is taken as a perception of
some specic value of X. On this basis, the most proper rule from the linguistic de-
scription is applied (res), and the best value of Y with respect to this rule is taken as
a result. Hence, ...