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ICDE
1993
IEEE
158views Database» more  ICDE 1993»
15 years 10 months ago
Unification of Temporal Data Models
To add time su port to the relational model, both first normal form (fNF and non-INF appmches have maining within 1NF when time support is added may introduce data redundancy. The...
Christian S. Jensen, Michael D. Soo, Richard T. Sn...
POPL
1992
ACM
15 years 10 months ago
A Compilation Method for ML-Style Polymorphic Record Calculi
Polymorphic record calculi have recently attracted much attention as a typed foundation for objectoriented programming. This is based on the fact that a function that selects a fi...
Atsushi Ohori
CSL
2009
Springer
15 years 10 months ago
Tree-Width for First Order Formulae
We introduce tree-width for first order formulae , fotw(). We show that computing fotw is fixed-parameter tractable with parameter fotw. Moreover, we show that on classes of formul...
Isolde Adler, Mark Weyer
ATVA
2006
Springer
102views Hardware» more  ATVA 2006»
15 years 10 months ago
A Semantic Framework for Test Coverage
Abstract. Since testing is inherently incomplete, test selection is of vital importance. Coverage measures evaluate the quality of a test suite and help the tester select test case...
Laura Brandán Briones, Ed Brinksma, Mari&eu...
COCO
2006
Springer
93views Algorithms» more  COCO 2006»
15 years 10 months ago
Making Hard Problems Harder
We consider a general approach to the hoary problem of (im)proving circuit lower bounds. We define notions of hardness condensing and hardness extraction, in analogy to the corres...
Joshua Buresh-Oppenheim, Rahul Santhanam