منابع مشابه
Bits and q-bits as versatility measures.
Using Shannon information theory is a common strategy to measure any kind of variability in a signal or phenomenon. Some methods were developed to adapt information entropy measures to bird song data trying to emphasize its versatility aspect. This classical approach, using the concept of bit, produces interesting results. Now, the original idea developed in this paper is to use the quantum inf...
متن کاملShaping Bits
The performance of bit-interleaved coded modulation (BICM) with bit shaping (i.e., non-equiprobable bit probabilities in the underlying binary code) is studied. For the Gaussian channel, the rates achievable with BICM and bit shaping are practically identical to those of coded modulation or multilevel coding. This identity holds for the whole range of values of signalto-noise ratio. Moreover, t...
متن کاملSuper-bits, Demi-bits, and NP/qpoly-natural Proofs
We introduce the super-bit conjecture, which allows the development of a theory generalizing the notion of pseudorandomness so as to fool non-deterministic statistical tests. This new kind of pseudorandomness rules out the existence of N P=poly-natural properties that can work against P=poly. This is an important extension of the original theory of P=poly-natural proofs 10]. We also introduce t...
متن کاملTangible Bits: Designing the Boundary between People, Bits, and Atoms
Where the sea meets the land, life has blossomed into a myriad of unique forms in the turbulence of water, sand, and wind. At another seashore between the land of atoms and the sea of bits, we are now facing the challenge of reconciling our dual citizenships in the physical and digital worlds. Windows to the digital world are confined to flat square screens and pixels, or ‘painted bits’. Unfort...
متن کاملAnts and Bits
Ants have always been helping people to solve various problems. Everybody remembers how they sorted seeds for Cinderella. For the IT community, ants have helped to show that Information Theory is not only an excellent mathematical theory but that many of its results can be considered laws of Nature. Reciprocally, we helped ants to be distinguished among other “intellectuals” such as counting pr...
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ژورنال
عنوان ژورنال: Anais da Academia Brasileira de Ciências
سال: 2004
ISSN: 0001-3765
DOI: 10.1590/s0001-37652004000200035