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IAT
2006
IEEE
16 years 14 days ago
Retaining Semantics in Relational Databases by Mapping them to RDF
Across various domains, the relational model for databases is employed extensively for the purpose of storing, managing and retrieving data. The translation, however, of data mode...
Madhav Krishna
DIAGRAMS
2004
Springer
15 years 10 months ago
What Can Spider Diagrams Say?
Spider diagrams are a visual notation for expressing logical statements. In this paper we identify a well known fragment of first order predicate logic, that we call ESD, equivalen...
Gem Stapleton, John Howse, John Taylor, Simon J. T...
ICDT
2005
ACM
125views Database» more  ICDT 2005»
15 years 12 months ago
PTIME Queries Revisited
The existence of a language expressing precisely the PTIME queries on arbitrary structures remains the central open problem in the theory of database query languages. As it turns o...
Alan Nash, Jeffrey B. Remmel, Victor Vianu
ESOP
1994
Springer
15 years 10 months ago
Local Type Reconstruction by Means of Symbolic Fixed Point Iteration
Abstract. We convert, via a version that uses constraints, a type inference system for strictness analysis into an algorithm which given an expression finds the set of possible typ...
Torben Amtoft
HASKELL
2007
ACM
15 years 10 months ago
Comprehensive comprehensions
We propose an extension to list comprehensions that makes it easy to express the kind of queries one would write in SQL using ORDER BY, GROUP BY, and LIMIT. Our extension adds exp...
Simon L. Peyton Jones, Philip Wadler