UPDATING - traducción al árabe
Diclib.com
Diccionario ChatGPT
Ingrese una palabra o frase en cualquier idioma 👆
Idioma:

Traducción y análisis de palabras por inteligencia artificial ChatGPT

En esta página puede obtener un análisis detallado de una palabra o frase, producido utilizando la mejor tecnología de inteligencia artificial hasta la fecha:

  • cómo se usa la palabra
  • frecuencia de uso
  • se utiliza con más frecuencia en el habla oral o escrita
  • opciones de traducción
  • ejemplos de uso (varias frases con traducción)
  • etimología

UPDATING - traducción al árabe

OPTIMIZATION METHOD
DFP updating formula; Davidon-Fletcher-Powell formula; Davidon-Fletcher-Powell; Davidon–Fletcher–Powell algorithm; Davidon–Fletcher–Powell; Davidon-Fletcher-Powell algorithm; Davidson-Fletcher-Powell

UPDATING      

ألاسم

تَجْدِيد ; تَحْدِيث ; تَعْصِير

الفعل

أَجَدَّ ; جَدَّدَ ; حَدَّثَ ; عَصَّرَ

Updating      
تحديث ، تجديد
جعله عصريا يطلع      
update

Definición

bug fix
<programming> A change to a program or system intended to permanently cure a bug. Often a fix for one bug inadvertantly introduces new bugs, hence the need for careful forethought and testing. Compare: workaround. (1998-06-25)

Wikipedia

Davidon–Fletcher–Powell formula

The Davidon–Fletcher–Powell formula (or DFP; named after William C. Davidon, Roger Fletcher, and Michael J. D. Powell) finds the solution to the secant equation that is closest to the current estimate and satisfies the curvature condition. It was the first quasi-Newton method to generalize the secant method to a multidimensional problem. This update maintains the symmetry and positive definiteness of the Hessian matrix.

Given a function f ( x ) {\displaystyle f(x)} , its gradient ( f {\displaystyle \nabla f} ), and positive-definite Hessian matrix B {\displaystyle B} , the Taylor series is

f ( x k + s k ) = f ( x k ) + f ( x k ) T s k + 1 2 s k T B s k + , {\displaystyle f(x_{k}+s_{k})=f(x_{k})+\nabla f(x_{k})^{T}s_{k}+{\frac {1}{2}}s_{k}^{T}{B}s_{k}+\dots ,}

and the Taylor series of the gradient itself (secant equation)

f ( x k + s k ) = f ( x k ) + B s k + {\displaystyle \nabla f(x_{k}+s_{k})=\nabla f(x_{k})+Bs_{k}+\dots }

is used to update B {\displaystyle B} .

The DFP formula finds a solution that is symmetric, positive-definite and closest to the current approximate value of B k {\displaystyle B_{k}} :

B k + 1 = ( I γ k y k s k T ) B k ( I γ k s k y k T ) + γ k y k y k T , {\displaystyle B_{k+1}=(I-\gamma _{k}y_{k}s_{k}^{T})B_{k}(I-\gamma _{k}s_{k}y_{k}^{T})+\gamma _{k}y_{k}y_{k}^{T},}

where

y k = f ( x k + s k ) f ( x k ) , {\displaystyle y_{k}=\nabla f(x_{k}+s_{k})-\nabla f(x_{k}),}
γ k = 1 y k T s k , {\displaystyle \gamma _{k}={\frac {1}{y_{k}^{T}s_{k}}},}

and B k {\displaystyle B_{k}} is a symmetric and positive-definite matrix.

The corresponding update to the inverse Hessian approximation H k = B k 1 {\displaystyle H_{k}=B_{k}^{-1}} is given by

H k + 1 = H k H k y k y k T H k y k T H k y k + s k s k T y k T s k . {\displaystyle H_{k+1}=H_{k}-{\frac {H_{k}y_{k}y_{k}^{T}H_{k}}{y_{k}^{T}H_{k}y_{k}}}+{\frac {s_{k}s_{k}^{T}}{y_{k}^{T}s_{k}}}.}

B {\displaystyle B} is assumed to be positive-definite, and the vectors s k T {\displaystyle s_{k}^{T}} and y {\displaystyle y} must satisfy the curvature condition

s k T y k = s k T B s k > 0. {\displaystyle s_{k}^{T}y_{k}=s_{k}^{T}Bs_{k}>0.}

The DFP formula is quite effective, but it was soon superseded by the Broyden–Fletcher–Goldfarb–Shanno formula, which is its dual (interchanging the roles of y and s).

Ejemplos de uso de UPDATING
1. Hasbro is updating Furby with more lifelike features and emotions.
2. The new Next range, takes the updating a stage further.
3. The International Labour Office says the law needs updating.
4. Updating the 1'88 NGS survey would cost millions of dollars.
5. RICH CLABAUGH – STAFF "They are updating their technology," says Gov.