82 search results - page 2 / 17 » An Extended Query Reformulation Technique Using Materialized... |
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
ADBIS
2004
Springer
14 years 26 days ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
SIGMOD
2011
ACM
12 years 10 months ago
2011
ACM
We study the problem of context-sensitive ranking for document retrieval, where a context is defined as a sub-collection of documents, and is specified by queries provided by do...
PKDD
2000
Springer
13 years 11 months ago
2000
Springer
Data mining is a useful decision support technique, which can be used to find trends and regularities in warehouses of corporate data. A serious problem of its practical applicatio...