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  2. Linear discriminant analysis - Wikipedia

    en.wikipedia.org/wiki/Linear_discriminant_analysis

    The Bayes boundary is calculated based on the true data generation parameters, the estimated boundary on the realised data points. ... is the mean of the class means ...

  3. Intraclass correlation - Wikipedia

    en.wikipedia.org/wiki/Intraclass_correlation

    In statistics, the intraclass correlation, or the intraclass correlation coefficient (ICC), [1] is a descriptive statistic that can be used when quantitative measurements are made on units that are organized into groups. It describes how strongly units in the same group resemble each other.

  4. Decision boundary - Wikipedia

    en.wikipedia.org/wiki/Decision_boundary

    Decision boundaries are not always clear cut. That is, the transition from one class in the feature space to another is not discontinuous, but gradual. This effect is common in fuzzy logic based classification algorithms, where membership in one class or another is ambiguous. Decision boundaries can be approximations of optimal stopping boundaries.

  5. Jenks natural breaks optimization - Wikipedia

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

    The method requires an iterative process. That is, calculations must be repeated using different breaks in the dataset to determine which set of breaks has the smallest in-class variance. The process is started by dividing the ordered data into classes in some way which may be arbitrary. There are two steps that must be repeated:

  6. Oversampling and undersampling in data analysis - Wikipedia

    en.wikipedia.org/wiki/Oversampling_and_under...

    The re-sampling techniques are implemented in four different categories: undersampling the majority class, oversampling the minority class, combining over and under sampling, and ensembling sampling. The Python implementation of 85 minority oversampling techniques with model selection functions are available in the smote-variants [ 2 ] package.

  7. Social class in the United States - Wikipedia

    en.wikipedia.org/wiki/Social_class_in_the_United...

    The median wealth of married couples exceeds that of single individuals, regardless of gender and across all age categories. [11]It is impossible to understand people's behavior…without the concept of social stratification, because class position has a pervasive influence on almost everything…the clothes we wear…the television shows we watch…the colors we paint our homes in and the ...

  8. Bayes classifier - Wikipedia

    en.wikipedia.org/wiki/Bayes_classifier

    In practice, as in most of statistics, the difficulties and subtleties are associated with modeling the probability distributions effectively—in this case, ⁡ (= =). The Bayes classifier is a useful benchmark in statistical classification.

  9. Ogive (statistics) - Wikipedia

    en.wikipedia.org/wiki/Ogive_(statistics)

    The points plotted as part of an ogive are the upper class limit and the corresponding cumulative absolute frequency [2] or cumulative relative frequency. The ogive for the normal distribution (on one side of the mean) resembles (one side of) an Arabesque or ogival arch, which is likely the origin of its name.