620 search results - page 41 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
158
Voted
SENSYS
2004
ACM
15 years 9 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...
163
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DAWAK
2005
Springer
15 years 5 months ago
2005
Springer
Abstract. Data mining is an iterative process. Users issue series of similar data mining queries, in each consecutive run slightly modifying either the definition of the mined dat...
167
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BNCOD
2007
15 years 5 months ago
2007
Order is essential for XML query processing. Efficient XML processing with order consideration over relational storage is non-trivial, especially for complex nested XQuery expressi...
150
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SIGMOD
2005
ACM
15 years 9 months 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...
133
Voted
AMW
2009
15 years 5 months ago
2009
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...