627 search results - page 45 / 126 » Efficient Top-k Query Evaluation on Probabilistic Data |
187
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CCS
2008
ACM
15 years 8 months ago
2008
ACM
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
167
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WWW
2005
ACM
16 years 6 months ago
2005
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
182
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TKDE
2010
15 years 4 months ago
2010
—Recently, many new applications, such as sensor data monitoring and mobile device tracking, raise up the issue of uncertain data management. Compared to “certain” data, the ...
164
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ICDE
2010
IEEE
16 years 5 months ago
2010
IEEE
Abstract-- Despite of advances in machine learning technologies, a schema matching result between two database schemas (e.g., those derived from COMA++) is likely to be imprecise. ...
297
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ICDE
2002
IEEE
16 years 7 months ago
2002
IEEE
XML and other semi-structured data may have partially specified or missing schema information, motivating the use of a structural summary which can be automatically computed from ...