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198
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SP
1997
IEEE
15 years 11 months ago
1997
IEEE
A major drawback of existing access control systems is that they have all been developed with a specific access control policy in mind. This means that all protection requirement...
184
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CAISE
2006
Springer
15 years 10 months ago
2006
Springer
One important task of semantic web portals is to offer both end users and applications a seamless access to knowledge contained in heterogeneous data sources in specific user commu...
179
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ESORICS
2006
Springer
15 years 10 months ago
2006
Springer
A user who wants to use a service forbidden by their site's usage policy can masquerade their packets in order to evade detection. One masquerade technique sends prohibited tr...
178
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ESORICS
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. Trust-management systems address the authorization problem in distributed systems. They offer several advantages over other approaches, such as support for delegation and...
191
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CLUSTER
2001
IEEE
15 years 10 months ago
2001
IEEE
At UCLA's Plasma Physics Group, we have been successful in building and using a numerically-intensive parallel computing cluster using Power Macintosh hardware and the Macint...