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  2. Logistics - Wikipedia

    en.wikipedia.org/wiki/Logistics

    A warehouse in South Jersey, a U.S. East Coast epicenter for logistics and warehouse construction outside Philadelphia, where trucks deliver slabs of granite [1]. Logistics is the part of supply chain management that deals with the efficient forward and reverse flow of goods, services, and related information from the point of origin to the point of consumption according to the needs of customers.

  3. Logistic distribution - Wikipedia

    en.wikipedia.org/wiki/Logistic_distribution

    The PDF of this distribution has the same functional form as the derivative of the Fermi function. In the theory of electron properties in semiconductors and metals, this derivative sets the relative weight of the various electron energies in their contributions to electron transport.

  4. Logistic function - Wikipedia

    en.wikipedia.org/wiki/Logistic_function

    The standard logistic function is the logistic function with parameters =, =, =, which yields = + = + = / / + /.In practice, due to the nature of the exponential function, it is often sufficient to compute the standard logistic function for over a small range of real numbers, such as a range contained in [−6, +6], as it quickly converges very close to its saturation values of 0 and 1.

  5. PDF - Wikipedia

    en.wikipedia.org/wiki/PDF

    A PDF file is organized using ASCII characters, except for certain elements that may have binary content. The file starts with a header containing a magic number (as a readable string) and the version of the format, for example %PDF-1.7. The format is a subset of a COS ("Carousel" Object Structure) format. [24]

  6. Generalized logistic distribution - Wikipedia

    en.wikipedia.org/wiki/Generalized_logistic...

    Moreover the computation of the partial derivatives (as required for example by BFGS) is considerably more complex than for the above two-parameter case. However, all the component functions are readily available in software packages with automatic differentiation. Again, the positive parameters can be parametrized in terms of their logarithms ...

  7. Logistic equation - Wikipedia

    en.wikipedia.org/wiki/Logistic_equation

    Logistic function, a common S-shaped equation and curve with applications in a wide range of fields. Logistic map, a nonlinear recurrence relation that plays a prominent role in chaos theory; Logistic regression, a regression technique that transforms the dependent variable using the logistic function

  8. Half-logistic distribution - Wikipedia

    en.wikipedia.org/wiki/Half-logistic_distribution

    The cumulative distribution function (cdf) of the half-logistic distribution is intimately related to the cdf of the logistic distribution. Formally, if F ( k ) is the cdf for the logistic distribution, then G ( k ) = 2 F ( k ) − 1 is the cdf of a half-logistic distribution.

  9. Generalised logistic function - Wikipedia

    en.wikipedia.org/wiki/Generalised_logistic_function

    The generalized logistic function or curve is an extension of the logistic or sigmoid functions. Originally developed for growth modelling, it allows for more flexible S-shaped curves. The function is sometimes named Richards's curve after F. J. Richards, who proposed the general form for the family of models in 1959.