A calculus for inheritance in monotonic semantic nets
Proceedings of the Second International Symposium on Methodologies for intelligent systems
A four-valued semantics for terminological logics
Artificial Intelligence
CLASSIC: a structural data model for objects
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Efficient management of transitive relationships in large data and knowledge bases
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Hierarchical knowledge bases and efficient disjunctive reasoning
Proceedings of the first international conference on Principles of knowledge representation and reasoning
Hard problems for simple default logics
Proceedings of the first international conference on Principles of knowledge representation and reasoning
On semantic issues connected with incomplete information databases
ACM Transactions on Database Systems (TODS)
Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
Reasoning with Incomplete Information
Reasoning with Incomplete Information
On Indefinite Databases and the Closed World Assumption
Proceedings of the 6th Conference on Automated Deduction
Negation and proof by contradiction in access-limited logic
AAAI'91 Proceedings of the ninth National conference on Artificial intelligence - Volume 2
AAAI'92 Proceedings of the tenth national conference on Artificial intelligence
A Critical Examination Of Model Preference Defaults
Fundamenta Informaticae
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Model-based revision of knowledge bases expressed as first-order theories was shown in [Winslett 88b] to be useful as a means of describing and reasoning about the effects of actions. This paper shows that model-based theory revision is actually expressible ...