(Enter summary)
Abstract: We represent a set of possible worlds using an incomplete information database.
The representation techniques that we study range from the very simple Codd-table
(a relation over constants and uniquely occurring variables called nulls) to much more
complex mechanisms involving views of conditioned-tables (programs applied to Coddtables
augmented by equality and inequality conditions). (1) We provide matching
upper and lower bounds on the data-complexity of testing containment, membership,
... (Update)
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BibTeX entry: (Update)
Abiteboul, S.; Kanellakis, P.; and Grahne, G. 1987. On the representation and querying of sets of possible worlds. In Proceedings ACM SIGMOD International Conference on Management of Data, San Francisco, California. 34--48. http://citeseer.ist.psu.edu/abiteboul89representation.html More
@inproceedings{ abiteboul87representation,
author = "Serge Abiteboul and Paris Kanellakis and Gosta Grahne",
title = "On the representation and querying of sets of possible worlds",
pages = "34--48",
year = "1987",
url = "citeseer.ist.psu.edu/abiteboul89representation.html" }
Citations (may not include all citations):
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Computers and Intractability: A Guide to the Theory of NP-Co.. (context) - Garey, Johnson - 1979
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The Complexity of Relational Query Languages (context) - Vardi - 1982
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Structure and Complexity of Relational Queries
- Chandra, Harel - 1982
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Extending the Database Relational Model to Capture More Mean.. (context) - Codd - 1979
101
Incomplete Information in Relational Databases (context) - Imielinski, Lipski - 1984
76
Principles of Database and Knowledge Base Systems: Volume (context) - Ullman - 1988
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The Polynomial Time Hierarchy (context) - Stockmeyer - 1976
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Database Relations with Null Values
- Zaniolo - 1984
25
A Sound and Sometimes Complete Query Evaluation Algorithm fo.. (context) - Reiter - 1986
24
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20
On Databases with Incomplete Information (context) - Lipski - 1981
11
Update Semantics for Incomplete Databases (context) - Abiteboul, Grahne - 1985
8
the Complexity of Testing Implications of Functional and Joi.. (context) - Maier, Sagiv et al. - 1981
6
Dependency Satisfaction in Databases with Incomplete Informa.. (context) - Grahne - 1984
5
Testing the Universal Instance Assumption (context) - Honeyman, Ladner et al. - 1980
4
The Complexity of Evaluating Relational Queries (context) - Cosmadakis - 1983
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Horn Clause Programs and Generalizations (context) - Chandra, Harel - 1985
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On Algebraic Query Processing in Logical Databases (context) - Imielinski - 1984
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