منابع مشابه
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We prove that the scale map of the .zero-crossings of almost all signals filtered by a gaussian of variable size determines the signal uniquely, up to a constant scaling. Exceptions are signals that are antisymmetric about all their zeros (for instance infinitely periodic gratings). Our proof provides a method for reconstructing almost all signals from knowledge of how the zero-crossing contour...
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Ever since “True Names” by Vernor Vinge, identity has been recognized as our most valued possession in cyberspace. Attribution is a key concept in enabling trusted identities and deterring malicious activities. The rash of recent cyber-attacks targeting consumers, coupled with the massive amount of available digital data, has forced us to rethink our very notion of authentication as a one-shot ...
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ژورنال
عنوان ژورنال: Nature Chemistry
سال: 2008
ISSN: 1755-4330,1755-4349
DOI: 10.1038/nchem.84