2911 search results - page 171 / 583 » A Theory of Expressiveness in Mechanisms |
144
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IJNSEC
2007
15 years 6 months ago
2007
Intrusion detection is the process of monitoring the events occurring in a computer system or network and analyzing them for signs of intrusions, defined as attempts to compromis...
192
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INFOCOM
2012
IEEE
13 years 9 months ago
2012
IEEE
—Access control is one of the most important security mechanisms in cloud computing. Attribute-based access control provides a flexible approach that allows data owners to integ...
152
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DOCENG
2009
ACM
16 years 29 days ago
2009
ACM
We study the analysis problem of XPath expressions with counting constraints. Such expressions are commonly used in document transformations or programs in which they select porti...
165
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ICDT
2005
ACM
15 years 12 months ago
2005
ACM
The existence of a language expressing precisely the PTIME queries on arbitrary structures remains the central open problem in the theory of database query languages. As it turns o...
160
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PODS
2000
ACM
15 years 10 months ago
2000
ACM
We consider spatial databases in the plane that can be defined by polynomial constraint formulas. Motivated by applications in geographic information systems, we investigate line...