Using kappas as indicators of strength in qualitative probabilistic networks

Abstract

Qualitative probabilistic networks are designed for probabilistic inference in a qualitative way. They capture qualitative influences between variables, but do not provide for indicating the strengths of these influences. As a result, trade-offs between conflicting influences remain unresolved upon inference. In this paper, we investigate the use of order-of-magnitude kappa values to capture strengths of influences in a qualitative network. We detail the use of these kappas upon inference, thereby providing for trade-off resolution.