Sciweavers

127 search results - page 13 / 26
» Aggregates in Constraint Handling Rules
Sort
View
VLDB
2005
ACM
105views Database» more  VLDB 2005»
15 years 4 months ago
View Matching for Outer-Join Views
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...
Per-Åke Larson, Jingren Zhou
LPNMR
2005
Springer
15 years 4 months ago
Answer Sets for Propositional Theories
Equilibrium logic, introduced by David Pearce, extends the concept of an answer set from logic programs to arbitrary sets of formulas. Logic programs correspond to the special case...
Paolo Ferraris
ENTCS
2010
85views more  ENTCS 2010»
14 years 11 months ago
Global Coordination Policies for Services
An important issue of the service oriented approach is the possibility to aggregate, through programmable coordination patterns, the activities involved by service interactions. T...
Vincenzo Ciancia, Gian Luigi Ferrari, Roberto Guan...
ENTCS
2008
110views more  ENTCS 2008»
14 years 11 months ago
A New Proposal Of Quasi-Solved Form For Equality Constraint Solving
Most well-known algorithms for equational solving are based on quantifier elimination. This technique iteratively eliminates the innermost block of existential/universal quantifie...
Javier Álvez, Paqui Lucio
FLAIRS
2004
15 years 11 days ago
Reasoning on Spatial Constraints over Regions
We discuss description and reasoning over regions. We have proposed a system called SRCC that integrates integration of spatial and semantic data. SRCC can describe and reason abo...
Kazuko Takahashi