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  2. Fréchet distribution - Wikipedia

    en.wikipedia.org/wiki/Fréchet_distribution

    It has the cumulative distribution function ( ) = > . where α > 0 is a shape parameter. It can be generalised to include a location parameter m (the minimum) and a scale parameter s > 0 with the cumulative distribution function

  3. Log wind profile - Wikipedia

    en.wikipedia.org/wiki/Log_wind_profile

    The logarithmic profile of wind speeds is generally limited to the lowest 100 m of the atmosphere (i.e., the surface layer of the atmospheric boundary layer). The rest of the atmosphere is composed of the remaining part of the PBL (up to around 1 km) and the troposphere or free atmosphere.

  4. Minkowski's bound - Wikipedia

    en.wikipedia.org/wiki/Minkowski's_bound

    Since the number of integral ideals of given norm is finite, the finiteness of the class number is an immediate consequence, [1] and further, the ideal class group is generated by the prime ideals of norm at most M K. Minkowski's bound may be used to derive a lower bound for the discriminant of a field K given n, r 1 and r 2.

  5. Wind profile power law - Wikipedia

    en.wikipedia.org/wiki/Wind_profile_power_law

    The wind profile power law relationship is = where is the wind speed (in metres per second) at height (in metres), and is the known wind speed at a reference height .The exponent is an empirically derived coefficient that varies dependent upon the stability of the atmosphere.

  6. Cramér–Rao bound - Wikipedia

    en.wikipedia.org/wiki/Cramér–Rao_bound

    with probability density function (;) which satisfies the two regularity conditions below. The Fisher information matrix is a d × d {\displaystyle d\times d} matrix with element I m , k {\displaystyle I_{m,k}} defined as

  7. Rule of mixtures - Wikipedia

    en.wikipedia.org/wiki/Rule_of_mixtures

    The upper and lower bounds on the elastic modulus of a composite material, as predicted by the rule of mixtures. The actual elastic modulus lies between the curves. In materials science , a general rule of mixtures is a weighted mean used to predict various properties of a composite material .

  8. Jenks natural breaks optimization - Wikipedia

    en.wikipedia.org/wiki/Jenks_natural_breaks...

    Calculate the sum of squared deviations from the class means (SDCM). Choose a new way of dividing the data into classes, perhaps by moving one or more data points from one class to a different one. New class deviations are then calculated, and the process is repeated until the sum of the within class deviations reaches a minimal value.

  9. Bayes classifier - Wikipedia

    en.wikipedia.org/wiki/Bayes_classifier

    Suppose a pair (,) takes values in {,, …,}, where is the class label of an element whose features are given by .Assume that the conditional distribution of X, given that the label Y takes the value r is given by (=) =,, …, where "" means "is distributed as", and where denotes a probability distribution.