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Результаты поиска термина [nonparametric]
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nonparametric | A procedure is nonparametric if it does not rely upon "simple" parametric forms in the data, such as a gaussian, poisson, or binomial distributions. typically, a nonparametric distribution relies upon the data to form the distribution, and derives its properties from the way the data was sampled (selected) and the way in which it is manipulated (e.g., randomization tests, classification trees). this makes the procedure more robust, but less efficient when a parametric distribution is reasonable. for example, a tree-based classifier can outperform a logistic regression when the data are not linear, but will be less effective when the data do meet the linearity assumptions of a logistic regression. note that nonparametric procedures essentially treat the data as the distribution, so that the base distribution involved is the observed data distribution, which is a form of a tabular distribution. these procedures are sometimes called "distribution free," again meaning "doesn`t use a simple parametric form," rather than "doesn`t have any distribution." see also: parametric distribution. non-terminal symbol a symbol in a grammar that can be rewritten into further symbols when processing a statement. see also: production, terminal symbol. non-von a family of massively parallel computer architectures developed at columbia university in the mid-1980s. the systems are characterized by a special form of "active memory", consisting of many elements each with a small amount of local memory, a specialized cpu, and i/o switches that permit the machine to be dynamically reconfigured. | |
nonparametric methods |
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nonparametric techniques | Непараметрические методы non-periodical function непериодическая функция non-persistent object временный объект | |
nonparametric test | Непараметрическое испытание. статистический метод, который реализуется без какихлибо предположений об истинном виде распределения совокупности, из которой взята выборка данных [12]. |
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