27 search results - page 5 / 6 » Consistent Query Answering: Opportunities and Limitations |
EUROPAR
2001
Springer
13 years 9 months ago
2001
Springer
Distributed-system observation tools require an efficient data structure to store and query the partial-order of execution. Such data structures typically use vector timestamps to...
DEXAW
2007
IEEE
13 years 7 months ago
2007
IEEE
Due to the lack of efficient native XML database management systems, XML data manipulation and query evaluation may be resource-consuming, and represent a bottleneck for several ...
PVLDB
2010
13 years 3 months ago
2010
Violations of functional dependencies (FDs) are common in practice, often arising in the context of data integration or Web data extraction. Resolving these violations is known to...
CIKM
1999
Springer
13 years 9 months ago
1999
Springer
On-line analytical processing (OLAP) requires e cient processing of complex decision support queries over very large databases. It is well accepted that pre-computed data cubes ca...
ICDT
2012
ACM
11 years 7 months ago
2012
ACM
In a recent paper by Hellerstein [15], a tight relationship was conjectured between the number of strata of a Datalog¬ program and the number of “coordination stages” require...