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138
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ICDE
1994
IEEE
103views Database» more  ICDE 1994»
15 years 7 months ago
A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
Paul W. P. J. Grefen, Rolf A. de By
123
Voted
ICFP
2010
ACM
15 years 4 months ago
Instance chains: type class programming without overlapping instances
Type classes have found a wide variety of uses in Haskell programs, from simple overloading of operators (such as equality or ordering) to complex invariants used to implement typ...
J. Garrett Morris, Mark P. Jones
116
Voted
CORR
2004
Springer
120views Education» more  CORR 2004»
15 years 3 months ago
Validating a Web Service Security Abstraction by Typing
Abstraction by Typing Andrew D. Gordon Microsoft Research Riccardo Pucella Cornell University An XML web service is, to a first approximation, an RPC service in which requests and...
Andrew D. Gordon, Riccardo Pucella
131
Voted
ICSE
2011
IEEE-ACM
14 years 7 months ago
Always-available static and dynamic feedback
Developers who write code in a statically typed language are denied the ability to obtain dynamic feedback by executing their code during periods when it fails the static type che...
Michael Bayne, Richard Cook, Michael D. Ernst
139
Voted
POPL
2012
ACM
13 years 11 months ago
Algebraic foundations for effect-dependent optimisations
We present a general theory of Gifford-style type and effect annotations, where effect annotations are sets of effects. Generality is achieved by recourse to the theory of algebra...
Ohad Kammar, Gordon D. Plotkin