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123
Voted
ICIP
2008
IEEE
16 years 4 months ago
2008
IEEE
Halftone image watermarking techniques that allow automated extraction of the embedded watermark data are useful in a variety of document security and workflow applications. The p...
156
Voted
ICIP
2003
IEEE
16 years 4 months ago
2003
IEEE
This paper considers the problem of encoding a secret binary image SI into n shares of meaningful halftone images within the scheme of visual cryptography (VC). Secret pixels enco...
ICML
2009
IEEE
16 years 3 months ago
2009
IEEE
Conventional clustering methods typically assume that each data item belongs to a single cluster. This assumption does not hold in general. In order to overcome this limitation, w...
WWW
2007
ACM
16 years 3 months ago
2007
ACM
In this paper we study the privacy preservation properties of a specific technique for query log anonymization: tokenbased hashing. In this approach, each query is tokenized, and ...
125
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STOC
2009
ACM
16 years 3 months ago
2009
ACM
We put forth a new computational notion of entropy, which measures the (in)feasibility of sampling high entropy strings that are consistent with a given protocol. Specifically, we...