320 search results - page 4 / 64 » Answering Queries from Statistics and Probabilistic Views |
ER
2001
Springer
14 years 28 days ago
2001
Springer
A Data Warehouse (DW) can be used to integrate data from multiple distributed data sources. A DW can be seen as a set of materialized views that determine its schema and its conten...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
We study the problem of answering XPATH queries using multiple materialized views. Despite the efforts on answering queries using single materialized view, answering queries using ...
SDMW
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
DEXAW
1998
IEEE
14 years 21 days ago
1998
IEEE
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
WEBDB
2005
Springer
14 years 1 months ago
2005
Springer
Efficient query processing in P2P-based Web integration systems poses a variety of challenges resulting from the strict decentralization and limited knowledge. As a special probl...