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CAISE
2000
Springer
13 years 11 months ago
An Overview of RoZ: A Tool for Integrating UML and Z Specifications
This paper presents an approach and a tool to increase specification quality by using a combination of UML and formal languages. Our approach is based on the expression of the UML ...
Sophie Dupuy, Yves Ledru, Monique Chabre-Peccoud
PODC
1999
ACM
13 years 11 months ago
Dynamically Configurable Distributed Objects
The dynamically configurable distributed object (DCDO) model helps enable object evolution and facilitate the development of distributed objects from multiple independent implemen...
Michael J. Lewis, Andrew S. Grimshaw
STOC
1999
ACM
101views Algorithms» more  STOC 1999»
13 years 11 months ago
Short Proofs are Narrow - Resolution Made Simple
The width of a Resolution proof is defined to be the maximal number of literals in any clause of the proof. In this paper, we relate proof width to proof length (ϭsize), in both g...
Eli Ben-Sasson, Avi Wigderson
FOCS
1998
IEEE
13 years 11 months ago
The Complexity of Acyclic Conjunctive Queries
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
Georg Gottlob, Nicola Leone, Francesco Scarcello
VLDB
1998
ACM
110views Database» more  VLDB 1998»
13 years 11 months ago
Massive Stochastic Testing of SQL
Deterministic testing of SQL database systems is human intensive and cannot adequately cover the SQL input domain. A system (RAGS), was built to stochastically generate valid SQL ...
Donald R. Slutz