log-normal distribution

  • 111lognormal — log·nor·mal (lôg nôrʹməl, lŏg ) adj. Mathematics Of, relating to, or being a logarithmic function with a normal distribution.   log nor·malʹi·ty ( mălʹĭ tē) n. log·norʹmal·ly adv. * * * …

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  • 112lognormal — log•nor•mal [[t]lɔgˈnɔr məl, lɒg [/t]] adj. math. of, pertaining to, or designating a distribution of a random variable for which the logarithm of the variable has a normal distribution • Etymology: 1945 log•nor′mal•ly, adv …

    From formal English to slang

  • 113Exponential family — Not to be confused with the exponential distribution. Natural parameter links here. For the usage of this term in differential geometry, see differential geometry of curves. In probability and statistics, an exponential family is an important… …

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  • 114CMA-ES — stands for Covariance Matrix Adaptation Evolution Strategy. Evolution strategies (ES) are stochastic, derivative free methods for numerical optimization of non linear or non convex continuous optimization problems. They belong to the class of… …

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  • 115Dirac delta function — Schematic representation of the Dirac delta function by a line surmounted by an arrow. The height of the arrow is usually used to specify the value of any multiplicative constant, which will give the area under the function. The other convention… …

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  • 116Natural exponential family — In probability and statistics, the natural exponential family (NEF) is a class of probability distributions that is a special case of an exponential family (EF). Many common distributions are members of a natural exponential family, and the use… …

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  • 117Directional statistics — is the subdiscipline of statistics that deals with directions (unit vectors in Rn), axes (lines through the origin in Rn) or rotations in Rn. More generally, directional statistics deals with observations on compact Riemannian manifolds. The… …

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  • 118Differential entropy — (also referred to as continuous entropy) is a concept in information theory that extends the idea of (Shannon) entropy, a measure of average surprisal of a random variable, to continuous probability distributions. Contents 1 Definition 2… …

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  • 119Fermi–Dirac statistics — Statistical mechanics Thermodynamics · …

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  • 120Data transformation (statistics) — A scatterplot in which the areas of the sovereign states and dependent territories in the world are plotted on the vertical axis against their populations on the horizontal axis. The upper plot uses raw data. In the lower plot, both the area and… …

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