654 search results - page 3 / 131 » Complexity of Answering Queries Using Materialized Views |
174
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VLDB
2002
ACM
15 years 11 months ago
2002
ACM
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
ER
2003
Springer
15 years 4 months ago
2003
Springer
We consider the problem of improving the efficiency of query processing on an XML interface of a relational database, for predefined query workloads. The main contribution of this ...
DOLAP
2009
ACM
15 years 6 months ago
2009
ACM
In this paper, we investigate the problem of answering top-k queries via materialized views. We provide theoretical guarantees for the adequacy of a view to answer a top-k query, ...
180
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VLDB
2001
ACM
15 years 11 months ago
2001
ACM
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessin...
105
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VLDB
2004
ACM
15 years 5 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...