Probabilistic argumentation systems

Probabilistic Argumentation Systems ∗

Probabilistic Argumentation Systems with Decision Variables

The general concept of probabilistic argumentation systems PAS is restricted to the two types of variables: assumptions, which model the uncertain part of the knowledge, and propositions, which model the rest of the information. Here, we introduce a third kind into PAS: so-called decision variables. This new kind allows to describe the decisions a user can make to react on some state of the sys...

Comparing normative argumentation to other probabilistic systems

This paper discusses a system of argu-mentation with a probabilistic semantics and compares it to two other probabilistic systems|Wellman's qualitative probabilis-tic networks and Neufeld's probabilistic default reasoning.

Probabilistic Argumentation Systems Applied to Information Retrieval

In this dissertation, a new logical model of information retrieval is developed and evaluated experimentally. This model is built on a general technique for uncertain reasoning called probabilistic argumentation systems (PAS), in which propositional logic and probability theory are combined to represent and handle uncertain knowledge, both in a symbolic and in a numerical way. The logical model...

Modeling Information Retrieval with Probabilistic Argumentation Systems

Probabilistic Argumentation Systems (PAS) are a technique for representing uncertainty both symbolically and numerically. It is shown that this technique, which combines symbolic logic and probability, can be used as a general model of information retrieval. PAS provide a dual (symbolic and numerical) interpretation of the logical uncertainty principle, and are a flexible model for integrating ...