14306 search results - page 200 / 2862 » Database System Concepts |
133
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VLDB
2004
ACM
15 years 9 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
131
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PODS
2010
ACM
15 years 9 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
156
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CLA
2007
15 years 5 months ago
2007
Formal Concept Analysis is based on the occurrence of symbolic attributes in individual objects, or observations. But, when the attribute is numeric, treatment has been awkward. In...
147
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DATESO
2006
15 years 5 months ago
2006
Abstract. This paper describes a vision of CellStore, a kind of universal database system, which would be capable of storing and operating on several different data models
239
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VLDB
2008
ACM
16 years 4 months ago
2008
ACM
With the development of inexpensive storage devices, space usage is no longer a bottleneck for computer users. However, the increasingly large amount of personal information poses ...