1933 search results - page 72 / 387 » Query Containment Using Views |
136
Voted
KR
2010
Springer
15 years 7 months ago
2010
Springer
Ontologies can be used to provide an enriched vocabulary for the formulation of queries over instance data. We identify query emptiness and predicate emptiness as two central reas...
198
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ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
A conventional materialized view blindly materializes and maintains all rows of a view, even rows that are never accessed. We propose a more flexible materialization strategy aime...
107
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EDBT
1998
ACM
15 years 6 months ago
1998
ACM
An importantuse of data warehousing is to provide temporal views over the history of source data that may itself be non-temporal. While recent work in view maintenance is applicab...
119
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SIGMOD
1995
ACM
15 years 6 months ago
1995
ACM
A warehouse is a repository of integrated information drawn from remote data sources. Since a warehouse e ectively implements materialized views, we must maintain the views as the...
121
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IC
2003
15 years 3 months ago
2003
The placement of Websites in ranked retrieval and the viewing patterns of Web search engine users is a crucial issue for Web site owners and Web search engines. However, little la...