173 search results - page 17 / 35 » Consistent Query Answering in Data Warehouses |
EDBT
2012
ACM
12 years 1 days ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...
HPDC
2010
IEEE
13 years 10 months ago
2010
IEEE
In this paper we present the Brown Dwarf, a distributed system designed to efficiently store, query and update multidimensional data over an unstructured Peer-to-Peer overlay, wit...
IJCSA
2008
13 years 9 months ago
2008
It is well known that transactional and analytical systems each require different database architecture. In general, the database structure of transactional systems is optimized f...
DOLAP
2004
ACM
14 years 3 months ago
2004
ACM
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
ICDT
2010
ACM
14 years 2 months ago
2010
ACM
In XML data exchange, a schema mapping specifies rules for restructuring a source document under the target schema, and queries over the target document must be answered in a way...