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» Integrating Temporal Logics
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SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
15 years 12 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...
PODS
2004
ACM
158views Database» more  PODS 2004»
15 years 12 months ago
Composing Schema Mappings: Second-Order Dependencies to the Rescue
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
ICSE
2007
IEEE-ACM
15 years 12 months ago
A Robust Semantic Overlay Network for Microgrid Control Applications
Abstract. Control systems for electrical microgrids rely ever more on heterogeneous off-the-shelf technology for hardware, software and networking among the intelligent electronic ...
Geert Deconinck, Koen Vanthournout, Hakem Beitolla...
ICFP
2008
ACM
15 years 11 months ago
Mixin' up the ML module system
ML modules provide hierarchical namespace management, as well as fine-grained control over the propagation of type information, but they do not allow modules to be broken up into ...
Derek Dreyer, Andreas Rossberg
POPL
2010
ACM
15 years 9 months ago
Pure Subtype Systems
This paper introduces a new approach to type theory called pure subtype systems. Pure subtype systems differ from traditional approaches to type theory (such as pure type systems)...
DeLesley S. Hutchins