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  2. Lévy distribution - Wikipedia

    en.wikipedia.org/wiki/Lévy_distribution

    The shift parameter has the effect of shifting the curve to the right by an amount and changing the support to the interval [, ). Like all stable distributions, the Lévy distribution has a standard form f(x; 0, 1) which has the following property:

  3. Diffusion map - Wikipedia

    en.wikipedia.org/wiki/Diffusion_map

    Different from linear dimensionality reduction methods such as principal component analysis (PCA), diffusion maps are part of the family of nonlinear dimensionality reduction methods which focus on discovering the underlying manifold that the data has been sampled from. By integrating local similarities at different scales, diffusion maps give ...

  4. Turbulence kinetic energy - Wikipedia

    en.wikipedia.org/wiki/Turbulence_kinetic_energy

    Turbulence kinetic energy is then transferred down the turbulence energy cascade, and is dissipated by viscous forces at the Kolmogorov scale. This process of production, transport and dissipation can be expressed as: D k D t + ∇ ⋅ T ′ = P − ε , {\displaystyle {\frac {Dk}{Dt}}+\nabla \cdot T'=P-\varepsilon ,} where: [ 1 ]

  5. Diffusion curve - Wikipedia

    en.wikipedia.org/wiki/Diffusion_curve

    Diffusion curves are vector graphic primitives for creating smooth-shaded images. Each diffusion curve partitions the 2D graphics space through which it is drawn, defining different colors on either side. When rendered, these colors then spread into the regions on either side of the curve in a way analogous to diffusion. The colors may also be ...

  6. Multifractal system - Wikipedia

    en.wikipedia.org/wiki/Multifractal_system

    One practical multifractal spectrum is the graph of D Q vs Q, where D Q is the generalized dimension for a dataset and Q is an arbitrary set of exponents. The expression generalized dimension thus refers to a set of dimensions for a dataset (detailed calculations for determining the generalized dimension using box counting are described below ).

  7. Lévy flight - Wikipedia

    en.wikipedia.org/wiki/Lévy_flight

    Lévy flights are, by construction, Markov processes.For general distributions of the step-size, satisfying the power-like condition, the distance from the origin of the random walk tends, after a large number of steps, to a stable distribution due to the generalized central limit theorem, enabling many processes to be modeled using Lévy flights.

  8. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    The graph of the logistic map + = is the plane curve that plots the relationship between and +, with (or x) on the horizontal axis and + (or f (x)) on the vertical axis. The graph of the logistic map looks like this, except for the case r = 0:

  9. Stability theory - Wikipedia

    en.wikipedia.org/wiki/Stability_theory

    The simplest kind of an orbit is a fixed point, or an equilibrium. If a mechanical system is in a stable equilibrium state then a small push will result in a localized motion, for example, small oscillations as in the case of a pendulum. In a system with damping, a stable equilibrium state is moreover asymptotically stable. On the other hand ...