CSL '94 Selected Papers from the 8th International Workshop on Computer Science Logic
Reasoning in Inconsistent Stratified Knowledge Bases
ISMVL '96 Proceedings of the 26th International Symposium on Multiple-Valued Logic
Weakening conflicting information for iterated revision and knowledge integration
Artificial Intelligence - Special issue on logical formalizations and commonsense reasoning
Artificial Intelligence - Special issue on nonmonotonic reasoning
System Z: a natural ordering of defaults with tractable applications to nonmonotonic reasoning
TARK '90 Proceedings of the 3rd conference on Theoretical aspects of reasoning about knowledge
A stratified first order logic approach for access control: Research Articles
International Journal of Intelligent Systems - Uncertain Reasoning (Part 2)
Just Enough Requirements Management: Where Software Development Meets Marketing
Just Enough Requirements Management: Where Software Development Meets Marketing
A survey on knowledge compilation
AI Communications
Social network-based trust in prioritized default logic
AAAI'06 proceedings of the 21st national conference on Artificial intelligence - Volume 2
An egalitarist fusion of incommensurable ranked belief bases under constraints
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 1
Preferred subtheories: an extended logical framework for default reasoning
IJCAI'89 Proceedings of the 11th international joint conference on Artificial intelligence - Volume 2
Inconsistency management and prioritized syntax-based entailment
IJCAI'93 Proceedings of the 13th international joint conference on Artifical intelligence - Volume 1
Quota and Gmin merging operators
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
SUM'10 Proceedings of the 4th international conference on Scalable uncertainty management
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Most operators for merging multiple knowledge bases (where each is a set of formulae) aim to produce a knowledge base as output that best reflects the information available in the input. Whilst these operators have some valuable properties, they do not provide explicit information on the degree to which each formula in the output has been, in some sense, supported by the different knowledge bases in the input. To address this, in this paper, we first define the degree of support that a formula receives from input knowledge bases. We then provide two ways of determining formulae which have the highest degree of support in the current collection of formulae in KBs, each of which gives a preference (or priority) over formulae that can be used to stratify the formulae in the output. We formulate these two preference criteria, and present an algorithm that given a set of knowledge bases as input, generates a stratified knowledge base as output. Following this, we define some merging operators based on the stratified base. Logical properties of these operators are investigated and a criterion for selecting merging operators is introduced.