Sciweavers

151 search results - page 2 / 31
» DISCO: A Constraint Database System with Sets
Sort
View
CORR
2002
Springer
187views Education» more  CORR 2002»
13 years 5 months ago
Answer Sets for Consistent Query Answering in Inconsistent Databases
A relational database is inconsistent if it does not satisfy a given set of integrity constraints. Nevertheless, it is likely that most of the data in it is consistent with the co...
Marcelo Arenas, Leopoldo E. Bertossi, Jan Chomicki
ATAL
2011
Springer
12 years 5 months ago
Decomposing constraint systems: equivalences and computational properties
Distributed systems can often be modeled as a collection of distributed (system) variables whose values are constrained by a set of constraints. In distributed multi-agent systems...
Wiebe van der Hoek, Cees Witteveen, Michael Wooldr...
OTM
2005
Springer
13 years 10 months ago
Maintaining Global Integrity in Federated Relational Databases Using Interactive Component Systems
The maintenance of global integrity constraints in database federations is still a challenge since traditional integrity constraint management techniques cannot be applied to such ...
Christopher Popfinger, Stefan Conrad
ISMIS
2011
Springer
12 years 8 months ago
Data Access Paths in Processing of Sets of Frequent Itemset Queries
Abstract. Frequent itemset mining can be regarded as advanced database querying where a user specifies the dataset to be mined and constraints to be satisfied by the discovered i...
Piotr Jedrzejczak, Marek Wojciechowski
APWEB
2004
Springer
13 years 10 months ago
Using Relational Database Constraints to Design Materialized Views in Data Warehouses
Queries to data warehouses often involve hundreds of complex aggregations over large volumes of data, and so it is infeasible to compute these queries by scanning the data sources ...
Taehee Lee, Jae-young Chang, Sang-goo Lee