PODS 1994 | Sciweavers

45

PODS
1994
ACM

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Dyn-FO: A Parallel, Dynamic Complexity Class

14 years 3 months ago

Traditionally, computational complexity has considered only static problems. Classical Complexity Classes such as NC, P, and NP are de ned in terms of the complexity of checking {...

Sushant Patnaik, Neil Immerman

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PODS
1994
ACM

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Towards a Theory of Spatial Database Queries

14 years 3 months ago

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Jan Paredaens, Jan Van den Bussche, Dirk Van Gucht

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31

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PODS
1994
ACM

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A Polymorphic Calculus for Views and Object Sharing

14 years 3 months ago

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We present a typed polymorphic calculus that supports a general mechanism for view definition and object sharing among classes. In this calculus, a class can contain inclusion spe...

Atsushi Ohori, Keishi Tajima

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PODS
1994
ACM

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Constraint Checking with Partial Information

14 years 3 months ago

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Abstract Appears in Proceedings of the Thirteenth Symposium on Principles of Database Systems, 1994 Ashish Gupta Yehoshua Sagivy Je rey D. Ullman Jennifer Widom Dept. of Computer S...

Ashish Gupta, Yehoshua Sagiv, Jeffrey D. Ullman, J...

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PODS
1994
ACM

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A Query Language for List-Based Complex Objects

14 years 3 months ago