Belief
and Plausibility
- For any event A, we can collect all testimonies in its favour
and determine the belief function which
corresponds to it, i.e. the sum of masses of belief of the focal elements
which involve A.
The belief function: Bel of an unspecified subset A
of 
is defined by:
- We can also determine its plausibility function,
by taking into account all the focal elements related to A, i.e.
the sum of the masses of belief of the focal elements which are related
to A and make it possible.
The plausibility function: Pl of an unspecified subset
A of
is defined by:
IRIT-UPS
