6846 search results - page 386 / 1370 » Querying a summary of database |
213
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ICDE
2006
IEEE
16 years 25 days ago
2006
IEEE
We consider the problem of query optimization in distributed stream based systems where multiple continuous queries may be executing simultaneously. In such systems, distribution ...
208
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WWW
2005
ACM
16 years 10 days ago
2005
ACM
In this paper, we propose an approach to materialize XML data warehouses based on the frequent query patterns discovered from historical queries issued by users. The schemas of in...
180
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ISCIS
2004
Springer
16 years 4 days ago
2004
Springer
One of the classic data mining problems is discovery of frequent itemsets. This problem particularly attracts database community as it resembles traditional database querying. In t...
168
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IDEAS
2003
IEEE
16 years 2 days ago
2003
IEEE
As the popularity of XML keeps growing rapidly, XML compliant structured document management becomes an interesting and compelling research area. Query optimization for structured...
208
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IDEAS
2000
IEEE
15 years 11 months ago
2000
IEEE
I n this paper, we address the problem of query processing o n distributed semi-structured data. The distributed semistructured data can be modeled as a rooted and edge-labeled gr...