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ICDT
2012
ACM
251views Database» more  ICDT 2012»
12 years 12 months ago
Computing universal models under guarded TGDs
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
André Hernich
ASPLOS
2010
ACM
15 years 2 months ago
An asymmetric distributed shared memory model for heterogeneous parallel systems
Heterogeneous computing combines general purpose CPUs with accelerators to efficiently execute both sequential control-intensive and data-parallel phases of applications. Existin...
Isaac Gelado, Javier Cabezas, Nacho Navarro, John ...
SACMAT
2009
ACM
15 years 4 months ago
Ensuring spatio-temporal access control for real-world applications
Traditional access control models, such as Role-Based Access Control (RBAC), do not take into account contextual information, such as location and time, for making access decision...
Manachai Toahchoodee, Indrakshi Ray, Kyriakos Anas...
CCS
2005
ACM
15 years 3 months ago
A framework for concrete reputation-systems with applications to history-based access control
In a reputation-based trust-management system, agents maintain information about the past behaviour of other agents. This information is used to guide future trust-based decisions...
Karl Krukow, Mogens Nielsen, Vladimiro Sassone
CCS
2007
ACM
15 years 3 months ago
Alpaca: extensible authorization for distributed services
Traditional Public Key Infrastructures (PKI) have not lived up to their promise because there are too many ways to define PKIs, too many cryptographic primitives to build them wi...
Chris Lesniewski-Laas, Bryan Ford, Jacob Strauss, ...