Merge and Expansion

  • Alexander Bochman
Part of the Artificial Intelligence book series (AI)


Whereas the general purpose of the contraction operation amounts to removing information (that is no longer believed), the operation of expansion consists in adding information to epistemic states. In the AGM theory this is achieved through a straightforward addition of the new proposition to the belief set, while in the base approach the new proposition is added directly to the base.


Preference Relation Selection Function Epistemic State Belief Change Admissible State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Alexander Bochman
    • 1
  1. 1.Computer Science DepartmentHolon Academic Institute of Technology (HAIT)HolonIsrael

Personalised recommendations