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  2. Lambda lifting - Wikipedia

    en.wikipedia.org/wiki/Lambda_lifting

    Parameter dropping is optimizing a function for its position in the function. Lambda lifting added parameters that were necessary so that a function can be moved out of its context. In dropping, this process is reversed, and extra parameters that contain variables that are free may be removed.

  3. Regularized least squares - Wikipedia

    en.wikipedia.org/wiki/Regularized_least_squares

    The parameter controls the invertibility of the matrix +. Several methods can be used to solve the above linear system, Cholesky decomposition being probably the method of choice, since the matrix X T X + λ n I {\displaystyle X^{\mathsf {T}}X+\lambda nI} is symmetric and positive definite .

  4. Hindley–Milner type system - Wikipedia

    en.wikipedia.org/wiki/Hindley–Milner_type_system

    A Hindley–Milner (HM) type system is a classical type system for the lambda calculus with parametric polymorphism. It is also known as Damas–Milner or Damas–Hindley–Milner. It was first described by J. Roger Hindley [1] and later rediscovered by Robin Milner. [2] Luis Damas contributed a close formal analysis and proof of the method in ...

  5. Anonymous function - Wikipedia

    en.wikipedia.org/wiki/Anonymous_function

    In computer programming, an anonymous function (function literal, expression or block) is a function definition that is not bound to an identifier.Anonymous functions are often arguments being passed to higher-order functions or used for constructing the result of a higher-order function that needs to return a function. [1]

  6. Recursive least squares filter - Wikipedia

    en.wikipedia.org/wiki/Recursive_least_squares_filter

    The goal is to estimate the parameters of the filter , and at each time we refer to the current estimate as and the adapted least-squares estimate by +. w n {\displaystyle \mathbf {w} _{n}} is also a column vector, as shown below, and the transpose , w n T {\displaystyle \mathbf {w} _{n}^{\mathit {T}}} , is a row vector .

  7. Currying - Wikipedia

    en.wikipedia.org/wiki/Currying

    This property is inherited from lambda calculus, where multi-argument functions are usually represented in curried form. Currying is related to, but not the same as partial application . [ 1 ] [ 2 ] In practice, the programming technique of closures can be used to perform partial application and a kind of currying, by hiding arguments in an ...

  8. Overfitting - Wikipedia

    en.wikipedia.org/wiki/Overfitting

    Underfitting occurs when a mathematical model cannot adequately capture the underlying structure of the data. An under-fitted model is a model where some parameters or terms that would appear in a correctly specified model are missing. [2] Underfitting would occur, for example, when fitting a linear model to nonlinear data.

  9. Name mangling - Wikipedia

    en.wikipedia.org/wiki/Name_mangling

    32-bit compilers emit, respectively: _f _g@4 @h@4 In the stdcall and fastcall mangling schemes, the function is encoded as _name@X and @name@X respectively, where X is the number of bytes, in decimal, of the argument(s) in the parameter list (including those passed in registers, for fastcall).