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Digital Universe
, 2008
"... or 281 billion gigabytes) — was 10 % bigger than we thought. The resizing comes as a result of faster growth in cameras, digital TV shipments, and better understanding of information replication. • By 2011, the digital universe will be 10 times the size it was in 2006. • As forecast, the amount of ..."
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or 281 billion gigabytes) — was 10 % bigger than we thought. The resizing comes as a result of faster growth in cameras, digital TV shipments, and better understanding of information replication. • By 2011, the digital universe will be 10 times the size it was in 2006. • As forecast, the amount
Near Optimal Signal Recovery From Random Projections: Universal Encoding Strategies?
, 2004
"... Suppose we are given a vector f in RN. How many linear measurements do we need to make about f to be able to recover f to within precision ɛ in the Euclidean (ℓ2) metric? Or more exactly, suppose we are interested in a class F of such objects— discrete digital signals, images, etc; how many linear m ..."
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Cited by 1513 (20 self)
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Suppose we are given a vector f in RN. How many linear measurements do we need to make about f to be able to recover f to within precision ɛ in the Euclidean (ℓ2) metric? Or more exactly, suppose we are interested in a class F of such objects— discrete digital signals, images, etc; how many linear
PolynomialTime Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
 SIAM J. on Computing
, 1997
"... A digital computer is generally believed to be an efficient universal computing device; that is, it is believed able to simulate any physical computing device with an increase in computation time by at most a polynomial factor. This may not be true when quantum mechanics is taken into consideration. ..."
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Cited by 1277 (4 self)
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A digital computer is generally believed to be an efficient universal computing device; that is, it is believed able to simulate any physical computing device with an increase in computation time by at most a polynomial factor. This may not be true when quantum mechanics is taken into consideration
Algorithms for Quantum Computation: Discrete Logarithms and Factoring
, 1994
"... A computer is generally considered to be a universal computational device; i.e., it is believed able to simulate any physical computational device with a cost in computation time of at most a polynomial factol: It is not clear whether this is still true when quantum mechanics is taken into consider ..."
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Cited by 1111 (5 self)
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A computer is generally considered to be a universal computational device; i.e., it is believed able to simulate any physical computational device with a cost in computation time of at most a polynomial factol: It is not clear whether this is still true when quantum mechanics is taken
A QuantumDigital Universe
"... Can Reality be simulated by a huge Quantum Computer? Do we believe that Reality is made of something more than interacting quantum systems? The idea that the whole Physics is ultimately a quantum computation—a strong quantum version of the ChurchTuring hypothesis well synthesized by the Wheeler’s c ..."
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Cited by 1 (0 self)
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Can Reality be simulated by a huge Quantum Computer? Do we believe that Reality is made of something more than interacting quantum systems? The idea that the whole Physics is ultimately a quantum computation—a strong quantum version of the ChurchTuring hypothesis well synthesized by the Wheeler’s coinage It from bit—is very appealing. It is theoretically very parsimonious: an Occam razor’s qualityguaranteed description of the world. But, if this is the case, then we need to understand the entire Physics as emergent from the quantum computation. Here I will make a short exploration on how this may come about. Ask a physicist what does he thinks the world is made of. Very likely the first impetuous answer will be: it is made of particles! But, at a second thought the answer will be: it is a Quantum Field. Particles are just states or the Field: they can be created and annihilated. We have indeed a beautiful Grand Unified Field Theory, and we are looking forward to see the Higg’s boson at the LHC. But what is the Quantum Field made of? Ultimately, it is made of quantum systems that are interacting, each system located at a different position in space. Things may be indeed more complicated than that, because the field is a continuum. But is Reality actually continuous? We don ’ t know: but it looks easier to think to Reality as a continuum. Now, suppose that this is not the case, namely Reality is ultimately discrete, and the continuum is only a mathematical fiction. Then, what else is out there more than interacting quantum
XM2VTSDB: The Extended M2VTS Database
 In Second International Conference on Audio and Videobased Biometric Person Authentication
, 1999
"... In this paper we describe the acquisition and content of a large multimodal database intended for training and testing of multimodal verification systems. The XM2VTSDB database offers synchronised video and speech data as well as image sequences allowing multiple views of the face. It consists of ..."
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Cited by 438 (40 self)
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of digital video recordings taken of 295 hundred subjects at one month intervals taken over a period of five months. We also describe a protocol for evaluating verification algorithms on the database. The database has been made available to anyone on request to the University of Surrey through http
Universal OneWay Hash Functions and their Cryptographic Applications
, 1989
"... We define a Universal OneWay Hash Function family, a new primitive which enables the compression of elements in the function domain. The main property of this primitive is that given an element x in the domain, it is computationally hard to find a different domain element which collides with x. We ..."
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Cited by 351 (15 self)
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prove constructively that universal oneway hash functions exist if any 11 oneway functions exist. Among the various applications of the primitive is a OneWay based Secure Digital Signature Scheme which is existentially secure against adoptive attacks. Previously, all provably secure signature
THE DUTCH DIGITAL UNIVERSITY: REALISING ECOMPETENCE VIA INSTITUTIONAL COOPERATION
"... Having neither teachers nor students, the Dutch Digital University (DU) is not a real or even a virtual ..."
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Having neither teachers nor students, the Dutch Digital University (DU) is not a real or even a virtual
The University of Hull Portal and the Digital University Project
"... Presentations from the day can be accessed below. Case studies relating to the implementation of uPortal at UK institutions were delivered by: ..."
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Presentations from the day can be accessed below. Case studies relating to the implementation of uPortal at UK institutions were delivered by:
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