Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Agnessa Babloyantz"'
Autor:
Agnessa Babloyantz
This volume contains the proceedings of the workshop held in March 1990 at Austin, Texas on Self-Organization, Emerging Properties and Learning. The workshop was co-sponsored by NATO Scientific Affairs Division, Solvay Institutes of Physics and Chemi
Publikováno v:
Physical Review E. 56:1188-1196
We present a simple and computationally inexpensive graphical method that unveils subtle correlations between short sequences of a chaotic time series. Similar events, even from noisy and nonstationary data, are clustered together and appear as well-
Publikováno v:
Computers & Mathematics with Applications. 34(2-4):333-354
Numerical procedures for approximate construction of cycles in nonlinear systems are studied. The procedures are based on functional parameter methods combined with mechanical quadratures, Newton's, and gradient methods. The convergence rate of the p
Autor:
Agnessa Babloyantz, Carlos Lourenço
Publikováno v:
Scopus-Elsevier
A model cortex comprising two interconnected spatiotemporal chaotic networks is considered. The system is able to discriminate between different patterns presented as input, and also detect motion and measure its velocity. Such cognitive processes ar
Autor:
Agnessa Babloyantz, P. Maurer
Publikováno v:
Physics Letters A. 221:43-55
A graphical method is devised whereby local relationships between successive values of a time series are represented on a two-dimensional diagram. The diagrams may correlate three, four, five or more successive events and provide their numerical valu
Autor:
Agnessa Babloyantz, Carlos Lourenço
Publikováno v:
Scopus-Elsevier
Different strategies for the control of chaotic neuronal networks and physical systems are presented. The variables of the dynamics span phase-spaces with very high dimensions. Novel control techniques are introduced that handle these high-dimensiona
Autor:
Agnessa Babloyantz, Carlos Lourenço
Publikováno v:
Neural Computation. 6:1141-1154
The unstable periodic orbits of chaotic dynamics in systems described by delay differential equations are considered. An orbit is stabilized successfully, using a method proposed by Pyragas. The system under investigation is a network of excitatory a
Autor:
Carlos Lourenço, Agnessa Babloyantz
Publikováno v:
Proceedings of the National Academy of Sciences. 91:9027-9031
A device comprising two interconnected networks of oscillators exhibiting spatiotemporal chaos is considered. An external cue stabilizes input specific unstable periodic orbits of the first network, thus creating an "attentive" state. Only in this st
Autor:
J. A. Sepulchre, Agnessa Babloyantz
Publikováno v:
Physical Review E. 48:945-950
We have extended the technique of stabilization of unstable periodic orbits to the case of spatially distributed networks of oscillators in a chaotic regime. The control is achieved via minute kicks to the variables of oscillators. These systems of m
Autor:
Dominique Gallez, Agnessa Babloyantz
Publikováno v:
Physics Letters A. 161:247-254
A new approach is introduced for analysing the dynamical properties of nonuniform attractors. Semi-local Lyapunov exponents and metric entropy are estimated for different regions in the phase space. Moreover, a systematic probing of the semi-local en