Search Results - "Proto, A.N."
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Separation of statistically dependent sources using an -distance non-Gaussianity measure
Published in Signal processing (01-11-2006)Get full text
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Separation of statistically dependent sources using an L 2 -distance non-Gaussianity measure
Published in Signal processing (01-11-2006)“…We provide a solution to the BSS problem for the special case of statistically dependent sources. We propose the MaxNG algorithm based on the maximization of a…”
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Dynamic peer-to-peer competition
Published in Physica A (01-07-2010)“…The dynamic behavior of a multiagent system in which the agent size s i is variable it is studied along a Lotka–Volterra approach. The agent size has hereby…”
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Blind spectral unmixing by local maximization of non-Gaussianity
Published in Signal processing (2008)“…We approach the estimation of material percentages per pixel (endmember fractional abundances) in hyperspectral remote-sensed images as a blind source…”
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Generalized metric phase space for quantum systems and the uncertainty principle
Published in Physica A (01-04-2007)“…We demonstrate that when the Gibbs entropy is an invariant of motion, following Information Theory procedures it is possible to define a generalized metric…”
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Classical limits
Published in Physics letters. A (13-05-2002)“…We study the classical limit of the dynamics of (i) three simple quantum systems, and (ii) a semi-quantum one based on the nonlinear coupling between two…”
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Time-dependent invariants of motion for complete sets of non-commuting observables
Published in Physica A (15-03-2005)“…Using the generalized Ehrenfest theorem the dynamics of the mean values of a complete set of non-commuting observables (CSNCO) associated to a given…”
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Wavelet statistical complexity analysis of the classical limit
Published in Physics letters. A (12-05-2003)“…We introduce the notion of wavelet statistical complexity (WSC) and investigate the classical limit of the non-linear dynamics of two interacting harmonic…”
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Gibbs entropy invariants of motion
Published in Physica A (2004)“…Invariants of motion are constructed departing from the Gibbs entropy. The method we applied also allows us to find the subspace of a real vector space to…”
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The uncertainty principle as invariant of motion for time-dependent Hamiltonians
Published in Physics letters. A (05-04-2004)“…A general expression of the Uncertainty Principle is presented. Applying a density matrix formalism, we show that it is an invariant of motion for…”
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Wavelet and Karhunen Loève transformations applied to SAR signals and images
Published in Physica A (01-10-2005)“…We developed two new tools to deal with synthetic aperture radar (SAR) images, based on two different and powerful mathematical formalism: wavelets (WT) and…”
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Long correlation Gaussian random fields: Parameter estimation and noise reduction
Published in Digital signal processing (01-07-2007)“…In this paper, a parametric model for Gaussian random fields (GRFs) with long-correlation feature, namely the long correlation GRF (LC-GRF), is studied…”
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Information theory and chaotic motion
Published in Physica A (01-09-2003)“…We present a general method to study the dynamics of quantum-classical systems. The emergency of chaotic motion in the classical limit together with the…”
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Semiquantum chaos and the uncertainty principle
Published in Physica A (01-02-2000)“…With reference to a recently advanced semi-classical model (Cooper et al., Phys. Rev. Lett. 72 (1994) 1337), we study the quantum-averaged behaviour of the…”
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Exact dynamics for a class of nonlinear Hamiltonians and the classification of its associated Alhassid-Levine Lie algebras
Published in Physics letters. A (07-09-1998)“…We show that the exact temporal evolution of a large class of Bose operators B ̂ can be obtained in terms of multicommutators of the type [ H ̂ ,…, [ H ̂ , B ̂…”
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Finite temperature Lewis' invariants for the Liouville equation
Published in Physica A (15-07-1997)“…Invariants of the Lewis kind are introduced within the context of Statistical Mechanics via information theory concepts. Several invariants of the Liouville…”
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A semiclassical statistical model for quantum dissipation
Published in Physica A (01-03-1997)“…The dynamical problem posed by the coupling of quantal to classical degrees of freedom is tackled, within the framework of the quantum friction phenomenon, by…”
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Dissipative behaviour and the interface between quantum and classical dynamical systems
Published in Chaos, solitons and fractals (1995)“…We consider the interaction between a two level system and a classical harmonic oscillator. The dynamical evolution is described via a convenient…”
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Information-theoretical approach to Josephson tunneling
Published in Physical review. B, Condensed matter (01-09-1989)“…A simplified Hamiltonian model of pair tunneling between two weakly coupled superconductors is used to obtain the ac Josephson current. A closed operator…”
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Temporal evolution in an effective Hilbert subspace
Published in Physical review. A, General physics (01-10-1987)Get full text
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