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DIM
2008
ACM
13 years 7 months ago
2008
ACM
We describe a technique aimed at addressing longstanding problems for password reset: security and cost. In our approach, users are authenticated using their preferences. Experime...
DIM
2008
ACM
13 years 7 months ago
2008
ACM
The secure release of identity attributes is a key enabler for electronic business interactions. In particular, integrity and confidentiality of identity attributes are two key re...
APAL
2008
13 years 5 months ago
2008
In this short note we provide an example of a semi-linear group G which does not admit a semi-linear affine embedding; in other words, there is no semi-linear isomorphism between t...
SODA
2008
ACM
13 years 6 months ago
2008
ACM
We consider the problem of embedding a metric into low-dimensional Euclidean space. The classical theorems of Bourgain, and of Johnson and Lindenstrauss say that any metric on n p...
FAW
2008
Springer
13 years 7 months ago
2008
Springer
We propose path-merging as a refinement of techniques used to make linked data structures partially persistent. Path-merging supports bursts of operations between any two adjacent ...