A Preliminary Study On Dynamic Preference Logic In Group

Preference logic focus on rational agents'preferences and their properties. Dynamic Preference logic looks for the reasons of preferences, depict its dynamic process, and formalize it. But in my view, there is few research for mult-agents. Model logic firstly constitute and create system based on a kind of object correspondingly, then investigate their properties Prevention at the system level. In this thesis, I discuss aggregation of preferences and preferences' change in group based on dynamic preference logic.Part one:Give a statement about the background of this study and relation to other fields in summary in section one and two,section three show the main work and aim of this thesis.Part two:I first provide historical consideration on preference logic seen from a logical point of view, focusing on von Wright's work in summary and review binary preference statements and basic modal preference logic.Part three:I sort out the dynamic preference logic which we had.Part four:Gaining enlightenment from Decision Theory, I integrate model logic with dynamic preference logic and study on aggregation of preferences, then give its language and semantics. Last I show one new action in group dynamic preference logic, namely agent promotion. Then I give an example for this.Part five:I comment part four and give some questions which is found during this study, and show some problems for further study in the future.