1413 search results - page 240 / 283 » Mining Multiple Large Databases |
100
Voted
SIGMOD
2001
ACM
16 years 1 months ago
2001
ACM
Materialized views can provide massive improvements in query processing time, especially for aggregation queries over large tables. To realize this potential, the query optimizer ...
98
Voted
DASFAA
2007
IEEE
15 years 8 months ago
2007
IEEE
As large-scale sensor networks are being deployed with the objective of collecting quality data to support user queries and decision-making, the role of a scalable query model beco...
106
click to vote
VLDB
2005
ACM
15 years 7 months ago
2005
ACM
Multi-join queries are the core of any integration service that integrates data from multiple distributed data sources. Due to the large number of data sources and possibly high v...
133
Voted
VLDB
2004
ACM
15 years 7 months ago
2004
ACM
XML languages, such as XQuery, XSLT and SQL/XML, employ XPath as the search and extraction language. XPath expressions often define complicated navigation, resulting in expensive...
140
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SIGMOD
2000
ACM
15 years 6 months ago
2000
ACM
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...