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153
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STOC
2010
ACM
15 years 7 months ago
2010
ACM
The spectral profile of a graph is a natural generalization of the classical notion of its Rayleigh quotient. Roughly speaking, given a graph G, for each 0 < < 1, the spect...
151
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ICDT
2010
ACM
15 years 7 months ago
2010
ACM
Schema mapping composition is a fundamental operation in schema management and data exchange. The mapping composition problem has been extensively studied for a number of mapping ...
144
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FC
2010
Springer
15 years 7 months ago
2010
Springer
—This paper discusses public-key authenticated key agreement protocols. First, we critically analyze several authenticated key agreement protocols and uncover various theoretical...
133
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ESORICS
2007
Springer
15 years 7 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...
176
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SOUPS
2010
ACM
15 years 7 months ago
2010
ACM
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...