TWO-DIMENSIONAL BELIEF CHANGE An Advertisement
Hans Rott · 2007
In this paper I compare two different the models of two-dimensional belief change, namely ‘revision by comparison ’ (Fermé and Rott, Artificial Intelligence 157, 2004) and ‘bounded revision ’ (Rott, in Hommage à Wlodek, Uppsala 2007). These revision operations are two-dimensional in the sense that they take as arguments pairs consisting of an input sentence and a reference sentence. Two-dimensional revision operations add a lot to the expressive power of traditional qualitative approaches to belief revision and refrain from assuming numbers as measures of degrees of belief. 1.