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» Coalgebraic semantics for timed processes
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SIGMOD
2007
ACM
160views Database» more  SIGMOD 2007»
14 years 10 months ago
Supporting ranking and clustering as generalized order-by and group-by
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
Chengkai Li, Min Wang, Lipyeow Lim, Haixun Wang, K...
ADBIS
2009
Springer
127views Database» more  ADBIS 2009»
14 years 4 months ago
Window Update Patterns in Stream Operators
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
Kostas Patroumpas, Timos K. Sellis
FOAL
2009
ACM
14 years 4 months ago
Unweaving the impact of aspect changes in AspectJ
Aspect-oriented programming (AOP) fosters the coding of tangled concerns in separated units that are then woven together in the executable system. Unfortunately, the oblivious nat...
Luca Cavallaro, Mattia Monga
LCPC
2009
Springer
14 years 2 months ago
A Communication Framework for Fault-Tolerant Parallel Execution
PC grids represent massive computation capacity at a low cost, but are challenging to employ for parallel computing because of variable and unpredictable performance and availabili...
Nagarajan Kanna, Jaspal Subhlok, Edgar Gabriel, Es...
CONCUR
2008
Springer
13 years 11 months ago
Abstraction for Stochastic Systems by Erlang's Method of Stages
ion for Stochastic Systems by Erlang's Method of Stages Joost-Pieter Katoen1 , Daniel Klink1 , Martin Leucker2 , and Verena Wolf3 1 RWTH Aachen University 2 TU Munich 3 EPF La...
Joost-Pieter Katoen, Daniel Klink, Martin Leucker,...