620 search results - page 16 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
102
Voted
PVLDB
2008
15 years 2 months ago
2008
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this ...
155
Voted
CIKM
2007
Springer
15 years 8 months ago
2007
Springer
Regular path queries (RPQ’s) are given by means of regular expressions and ask for matching patterns on labeled graphs. RPQ’s have received great attention in the context of s...
214
Voted
SIGMOD
2008
ACM
16 years 2 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
205
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
Integration systems typically support only a restricted set of queries over the schema they export. The reason is that the participating information sources contribute limited con...
124
Voted
DMDW
2000
15 years 3 months ago
2000
View materialization is a central issue in logical design of data warehouses since it is one of the most powerful techniques to improve the response to the workload. Most approach...