2608 search results - page 174 / 522 » Inferring Answers to Queries |
177
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ER
2003
Springer
15 years 11 months ago
2003
Springer
We consider the problem of improving the efficiency of query processing on an XML interface of a relational database, for predefined query workloads. The main contribution of this ...
180
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ADBIS
1999
Springer
15 years 10 months ago
1999
Springer
Abstract. Overlapping Linear Quadtrees is a structure suitable for storing consecutive raster images according to transaction time (a database of evolving images). This structure s...
205
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DEXAW
2007
IEEE
15 years 10 months ago
2007
IEEE
The problem of efficiently evaluating XPath and XQuery queries has become increasingly significant since more and more XML data is stored in its native form. We propose a novel op...
175
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WEBI
2010
Springer
15 years 4 months ago
2010
Springer
A query burst is a period of heightened interest of users on a topic which yields a higher frequency of the search queries related to it. In this paper we examine the behavior of s...
221
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RR
2010
Springer
15 years 4 months ago
2010
Springer
Role-based access control is a standard mechanism in information systems. Based on the role a user has, certain information is kept from the user even if requested. For ontologies ...