3969 search results - page 292 / 794 » Query Processing Using Ontologies |
123
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WEBDB
2009
Springer
15 years 10 months ago
2009
Springer
The question whether a given set of views, defined by queries, can be used to answer another query, arises in several contexts such as query optimization, data integration and se...
164
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IDEAS
2003
IEEE
15 years 9 months ago
2003
IEEE
In the past few years, much attention has been paid to the study of semistructured data, i.e., data with irregular, possibly unstable, and rapidly changing structure, and, in part...
135
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CIDR
2009
15 years 5 months ago
2009
We present the design and development of a data stream system that captures data uncertainty from data collection to query processing to final result generation. Our system focuse...
147
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INFORMATICALT
2008
15 years 4 months ago
2008
Abstract. The study of databases began with the design of efficient storage and data sharing techniques for large amount of data. This paper concerns the processing of imprecision ...
171
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JUCS
2010
14 years 10 months ago
2010
: We develop and study the concept of dataflow process networks as used for example by Kahn to suit exact computation over data types related to real numbers, such as continuous fu...