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ICDT
2010
ACM
180views Database» more  ICDT 2010»
14 years 5 months ago
Foundations of SPARQL Query Optimization
We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
Michael Schmidt, Michael Meier, Georg Lausen
ACS
2005
13 years 7 months ago
Symmetric Brace Algebras
We develop a symmetric analog of brace algebras and discuss the relation of such algebras to L-algebras. We give an alternate proof that the category of symmetric brace algebras is...
Tom Lada, Martin Markl
AB
2008
Springer
14 years 2 months ago
Neural Algebra and Consciousness: A Theory of Structural Functionality in Neural Nets
Abstract. Thoughts are spatio-temporal patterns of coalitions of firing neurons and their interconnections. Neural algebras represent these patterns as formal algebraic objects, a...
Erwin Engeler
CSL
1989
Springer
13 years 11 months ago
Algebraic Operational Semantics and Occam
We generalize algebraic operational semantics from sequential languages to distributed, concurrent languages using Occam as an example. Elsewhere, we will discuss applications to ...
Yuri Gurevich, Lawrence S. Moss
ICDE
2004
IEEE
89views Database» more  ICDE 2004»
14 years 9 months ago
Nested Queries and Quantifiers in an Ordered Context
We present algebraic equivalences that allow to unnest nested algebraic expressions for order-preserving algebraic operators. We illustrate how these equivalences can be applied s...
Norman May, Sven Helmer, Guido Moerkotte