390 search results - page 40 / 78 » Approximate Query Answering in Locally Closed Databases |
PAKDD
1999
ACM
15 years 2 months ago
1999
ACM
Empirical equations are an important class of regularities that can be discovered in databases. In this paper we concentrate on the role of equations as de nitions of attribute val...
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
A range-sum query is very popular and becomes important in finding trends and in discovering relationships between attributes in diverse database applications. It sums over the se...
ICDE
2007
IEEE
15 years 4 months ago
2007
IEEE
Existing index selection tools rely on heuristics to efficiently search within the large space of alternative solutions and to minimize the overhead of using the query optimizer ...
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DEXAW
2007
IEEE
14 years 11 months ago
2007
IEEE
Due to the lack of efficient native XML database management systems, XML data manipulation and query evaluation may be resource-consuming, and represent a bottleneck for several ...
SSDBM
2007
IEEE
15 years 4 months ago
2007
IEEE
As relational database management systems are applied to non-traditional domains such as scientific data management, there is an increasing need to support queries with semantics ...