3678 search results - page 327 / 736 » Personalization of Queries in Database Systems |
185
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VLDB
2007
ACM
16 years 22 days ago
2007
ACM
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
265
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PODS
2010
ACM
15 years 11 months ago
2010
ACM
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
271
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ICDE
1999
IEEE
16 years 8 months ago
1999
IEEE
Indexes play a vital role in decision support systems by reducing the cost of answering complex queries. A popular methodology for choosing indexes that is adopted by database adm...
196
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SIGMOD
2005
ACM
16 years 5 days ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
181
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CIKM
2009
Springer
15 years 10 months ago
2009
Springer
Keyword search techniques that take advantage of XML structure make it very easy for ordinary users to query XML databases, but current approaches to processing these queries rely...