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SP
1997
IEEE
134views Security Privacy» more  SP 1997»
15 years 10 months ago
A Logical Language for Expressing Authorizations
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...
Sushil Jajodia, Pierangela Samarati, V. S. Subrahm...
DMDW
2001
127views Management» more  DMDW 2001»
15 years 8 months ago
MAC: Conceptual data modeling for OLAP
In this paper we address the issue of conceptual modeling of data used in multidimensional analysis. We view the problem from the end-user point of view and we describe a set of r...
Aris Tsois, Nikos Karayannidis, Timos K. Sellis
ICALT
2006
IEEE
16 years 20 days ago
Vicarious Learning and Multimodal Dialogue
Vicarious Learning is learning from watching others learn. We believe that this is a powerful model for computer-based learning. Learning episodes can be captured and replayed to ...
John Lee
EFDBS
2001
15 years 8 months ago
Augmenting SQL with Dynamic Restructuring to Support Interoperability in a Relational Federation
In this work, we consider augmenting SQL with constructs allowing dynamic restructuring. Dynamic restructuring occurs naturally in a framework including second-order capabilities f...
Catharine M. Wyss, Felix I. Wyss, Dirk Van Gucht
COMPUTER
2006
92views more  COMPUTER 2006»
15 years 6 months ago
The Moment Camera
more abstract realms of Impressionism, and more pure Abstraction. The camera, although capable of capturing instants in time, cannot on its own--except in rare instances--truly rec...
Michael F. Cohen, Richard Szeliski