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  2. Even and odd functions - Wikipedia

    en.wikipedia.org/wiki/Even_and_odd_functions

    The sine function and all of its Taylor polynomials are odd functions. The cosine function and all of its Taylor polynomials are even functions.. In mathematics, an even function is a real function such that () = for every in its domain.

  3. Generalized least squares - Wikipedia

    en.wikipedia.org/wiki/Generalized_least_squares

    In statistics, generalized least squares (GLS) is a method used to estimate the unknown parameters in a linear regression model.It is used when there is a non-zero amount of correlation between the residuals in the regression model.

  4. Mean squared error - Wikipedia

    en.wikipedia.org/wiki/Mean_squared_error

    The MSE either assesses the quality of a predictor (i.e., a function mapping arbitrary inputs to a sample of values of some random variable), or of an estimator (i.e., a mathematical function mapping a sample of data to an estimate of a parameter of the population from which the data is sampled).

  5. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. Kernel density estimation - Wikipedia

    en.wikipedia.org/wiki/Kernel_density_estimation

    Kernel density estimation of 100 normally distributed random numbers using different smoothing bandwidths.. In statistics, kernel density estimation (KDE) is the application of kernel smoothing for probability density estimation, i.e., a non-parametric method to estimate the probability density function of a random variable based on kernels as weights.

  7. List of datasets for machine-learning research - Wikipedia

    en.wikipedia.org/wiki/List_of_datasets_for...

    2,412 Ham 481 Spam Text Classification 2000 [38] [39] Androutsopoulos, J. et al. SMS Spam Collection Dataset Collected SMS spam messages. None. 5,574 Text Classification 2011 [40] [41] T. Almeida et al. Twenty Newsgroups Dataset Messages from 20 different newsgroups. None. 20,000 Text Natural language processing 1999 [42] T. Mitchell et al.

  8. Trace (linear algebra) - Wikipedia

    en.wikipedia.org/wiki/Trace_(linear_algebra)

    In linear algebra, the trace of a square matrix A, denoted tr(A), [1] is the sum of the elements on its main diagonal, + + +.It is only defined for a square matrix (n × n).The trace of a matrix is the sum of its eigenvalues (counted with multiplicities).

  9. Stoichiometry - Wikipedia

    en.wikipedia.org/wiki/Stoichiometry

    A stoichiometric diagram of the combustion reaction of methane. Stoichiometry (/ ˌ s t ɔɪ k i ˈ ɒ m ɪ t r i / ⓘ) is the relationships between the masses of reactants and products before, during, and following chemical reactions.