670 search results - page 69 / 134 » Intractability and clustering with constraints |
ESORICS
2007
Springer
15 years 1 months ago
2007
Springer
We propose the role-and-relation-based access control (R2 BAC) model for workflow systems. In R2 BAC, in addition to a user's role memberships, the user's relationships w...
EUROPAR
2003
Springer
15 years 3 months ago
2003
Springer
We consider the use of a cluster of PC servers for Application Service Providers where applications and databases must remain autonomous. We use data replication to improve data av...
CATA
2003
14 years 11 months ago
2003
In a real-time system, it is attractive to use cluster computing system for realizing high performance and high availability. The objectives of the real-time clusters are maximize...
ICASSP
2010
IEEE
14 years 10 months ago
2010
IEEE
Given a set of monophonic, harmonic sound sources (e.g. human voices or wind instruments), multi-pitch estimation (MPE) is the task of determining the instantaneous pitches of eac...
EWSN
2008
Springer
15 years 9 months ago
2008
Springer
Clustering is an important mechanism in large multi-hop wireless sensor networks for obtaining scalability, reducing energy consumption and achieving better network performance. Mo...