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CCS
2007
ACM
16 years 4 days ago
A simple and expressive semantic framework for policy composition in access control
In defining large, complex access control policies, one would like to compose sub-policies, perhaps authored by different organizations, into a single global policy. Existing po...
Glenn Bruns, Daniel S. Dantas, Michael Huth
MIDDLEWARE
2005
Springer
15 years 11 months ago
An aspect-oriented ambient intelligence middleware platform
Currently, the interest in Ambient Intelligence (or AmI) has increased exponentially due to the widespread use of portable devices. Users demand more and more functionality from t...
Lidia Fuentes, Daniel Jiménez
GI
2004
Springer
15 years 11 months ago
An Architecture Concept for Mobile P2P File Sharing Services
Abstract: File-sharing in mobile networks has differing demands to a P2P architecture. Resource access and mediation techniques must follow constraints given in 2.5G/3G networks. E...
Frank-Uwe Andersen, Hermann de Meer, Ivan Dedinski...
ICCV
2009
IEEE
16 years 11 months ago
Efficient subset selection based on the Renyi entropy
Many machine learning algorithms require the summation of Gaussian kernel functions, an expensive operation if implemented straightforwardly. Several methods have been proposed t...
Vlad I. Morariu1, Balaji V. Srinivasan, Vikas C. R...
ICCV
2001
IEEE
16 years 8 months ago
Beyond Lambert: Reconstructing Surfaces with Arbitrary BRDFs
W e address an open and hitherto neglected problem in computer vision, how to reconstruct the geometry of objects with arbitrary and possibly anisotropic bidirectional reflectance...
Sebastian Magda, David J. Kriegman, Todd Zickler, ...