The usual presentations of deontic logic, whether axiomatic or semantic, treat norms as if they could bear truth-values. The fundamental problem of deontic logic is to reconstruct it in accord with the philosophical position that they do not. 1993 covers conditional norms, but with certain shortcomings. The title is a provocation, of course, a likely satisfier of its own predicate. Even so, the intent of the paper is seriously to propose that all the vital elements of postmodernism are to be found doing indispensable work in some of this century's most celebrated technical philosophy.
All actions have the capability of succeeding or failing.
After distinguishing between imprecision and uncertainty, we focus on the quantified representations of uncertainty, considering weighted imprecision only in its relation to uncertainty. We restrict ourselves on the theories with well structured foundations leaving aside ad hoc theories. We successively define the concept of support, the frame on which uncertainty is defined and the concepts of actual worlds, of 'evidential corpus' and of the 'support state' that describes the agent's opinion about which of the possible worlds is the actual world. In this talk, we will give a brief introduction to this rapidly developing field and outline the key principles. We will then illustrate the issues faced in designing data mining methods with a description of a new method for a typical data mining task, the problem of finding statistically unusual subgroups, in particular for multi-relational databases.