8949 search results - page 1651 / 1790 » is 1998 |
160
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CHI
1999
ACM
15 years 10 months ago
1999
ACM
The past decades have seen huge improvements in computer systems but these have proved difficult to translate into comparable improvements in the usability and social integration)...
188
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DL
1999
Springer
15 years 10 months ago
1999
Springer
As part of the Illinois Digital Library Initiative (DLI) project we developed “scalable semantics” technologies. These statistical techniques enabled us to index large collect...
175
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ACSAC
1998
IEEE
15 years 10 months ago
1998
IEEE
System protection mechanisms such as access controls can be fooled by authorized but malicious users, masqueraders, and misfeasors. Intrusion detection techniques are therefore us...
174
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ACSAC
1998
IEEE
15 years 10 months ago
1998
IEEE
Abstract Role-based access control RBAC has recently received a lot of attention due to its exibility, expressive power and simplicity in administration. In RBAC permissions are as...
152
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AGP
1998
IEEE
15 years 10 months ago
1998
IEEE
In this paper we investigate updates of knowledge bases represented by logic programs. In order to represent negative information, we use generalized logic programs which allow de...