1242 search results - page 224 / 249 » A Computational Complexity Theory in Membrane Computing |
STOC
1993
ACM
13 years 11 months ago
1993
ACM
Most complexity measures for concurrent algorithms for asynchronous shared-memory architectures focus on process steps and memory consumption. In practice, however, performance of ...
ESORICS
2007
Springer
13 years 11 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...
COCO
2004
Springer
13 years 11 months ago
2004
Springer
Based on the framework of parameterized complexity theory, we derive tight lower bounds on the computational complexity for a number of well-known NP-hard problems. We start by pr...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
Social Network Marketing techniques employ pre-existing social networks to increase brands or products awareness through word-of-mouth promotion. Full understanding of social netw...
DIMEA
2007
13 years 9 months ago
2007
Businesses today are requiring higher levels of creativity and innovation in the face of rapid change, fierce competition and increasingly complex markets. Nowhere is the more obv...