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  2. Stability (learning theory) - Wikipedia

    en.wikipedia.org/wiki/Stability_(learning_theory)

    A stable learning algorithm would produce a similar classifier with both the 1000-element and 999-element training sets. Stability can be studied for many types of learning problems, from language learning to inverse problems in physics and engineering, as it is a property of the learning process rather than the type of information being learned.

  3. Local oscillator - Wikipedia

    en.wikipedia.org/wiki/Local_oscillator

    The performance of a signal processing system depends on the characteristics of the local oscillator. The local oscillator must produce a stable frequency with low harmonics. [1] Stability must take into account temperature, voltage, and mechanical drift as factors. The oscillator must produce enough output power to effectively drive subsequent ...

  4. Kuramoto model - Wikipedia

    en.wikipedia.org/wiki/Kuramoto_model

    The Kuramoto model (or Kuramoto–Daido model), first proposed by Yoshiki Kuramoto (蔵本 由紀, Kuramoto Yoshiki), [1] [2] is a mathematical model used in describing synchronization. More specifically, it is a model for the behavior of a large set of coupled oscillators .

  5. Stable theory - Wikipedia

    en.wikipedia.org/wiki/Stable_theory

    In the mathematical field of model theory, a theory is called stable if it satisfies certain combinatorial restrictions on its complexity. Stable theories are rooted in the proof of Morley's categoricity theorem and were extensively studied as part of Saharon Shelah's classification theory, which showed a dichotomy that either the models of a theory admit a nice classification or the models ...

  6. Oja's rule - Wikipedia

    en.wikipedia.org/wiki/Oja's_rule

    Oja's learning rule, or simply Oja's rule, named after Finnish computer scientist Erkki Oja (Finnish pronunciation:, AW-yuh), is a model of how neurons in the brain or in artificial neural networks change connection strength, or learn, over time.

  7. Hidden attractor - Wikipedia

    en.wikipedia.org/wiki/Hidden_attractor

    In the bifurcation theory, a bounded oscillation that is born without loss of stability of stationary set is called a hidden oscillation.In nonlinear control theory, the birth of a hidden oscillation in a time-invariant control system with bounded states means crossing a boundary, in the domain of the parameters, where local stability of the stationary states implies global stability (see, e.g ...

  8. Rössler attractor - Wikipedia

    en.wikipedia.org/wiki/Rössler_attractor

    It seems from numerical experimentation that there is a unique periodic orbit for all positive winding numbers. This lack of degeneracy likely stems from the problem's lack of symmetry. The attractor can be dissected into easier to digest invariant manifolds: 1D periodic orbits and the 2D stable and unstable manifolds of periodic

  9. Phase-locked loop - Wikipedia

    en.wikipedia.org/wiki/Phase-locked_loop

    A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal. Keeping the input and output phase in lockstep also implies keeping the input and output frequencies the same, thus a phase-locked loop can also track an input frequency.