In vector calculus, the gradient of a scalar-valued differentiable function f {\displaystyle f} of several variables is the vector field (or vector-valued...
35 KB (5,360 words) - 11:16, 8 May 2024
Stochastic gradient descent (often abbreviated SGD) is an iterative method for optimizing an objective function with suitable smoothness properties (e...
50 KB (6,588 words) - 22:02, 7 May 2024
Gradient descent is a method for unconstrained mathematical optimization. It is a first-order iterative algorithm for finding a local minimum of a differentiable...
36 KB (5,280 words) - 10:08, 19 May 2024
Gradient boosting is a machine learning technique based on boosting in a functional space, where the target is pseudo-residuals rather than the typical...
28 KB (4,209 words) - 05:27, 13 May 2024
In machine learning, the vanishing gradient problem is encountered when training neural networks with gradient-based learning methods and backpropagation...
25 KB (3,779 words) - 09:31, 7 May 2024
rate. Gradient may also refer to: Gradient sro, a Czech aircraft manufacturer Image gradient, a gradual change or blending of color Color gradient, a range...
1 KB (176 words) - 12:46, 12 December 2023
surface gradient is a vector differential operator that is similar to the conventional gradient. The distinction is that the surface gradient takes effect...
2 KB (191 words) - 21:12, 1 November 2023
In color science, a color gradient (also known as a color ramp or a color progression) specifies a range of position-dependent colors, usually used to...
13 KB (1,302 words) - 01:53, 9 May 2024
Geothermal gradient is the rate of change in temperature with respect to increasing depth in Earth's interior. As a general rule, the crust temperature...
28 KB (3,141 words) - 23:07, 29 February 2024
Backpropagation (section Second-order gradient descent)
machine learning, backpropagation is a gradient estimation method used to train neural network models. The gradient estimate is used by the optimization...
54 KB (7,493 words) - 10:45, 15 May 2024
electrochemical gradient is a gradient of electrochemical potential, usually for an ion that can move across a membrane. The gradient consists of two...
24 KB (2,716 words) - 14:53, 18 December 2023
everywhere orthogonal to the gradient of the function and that has the same magnitude as the gradient. The skew gradient can be defined using complex...
1 KB (215 words) - 22:20, 20 January 2016
In mathematics, the conjugate gradient method is an algorithm for the numerical solution of particular systems of linear equations, namely those whose...
45 KB (7,323 words) - 02:13, 4 May 2024
In hydrodynamics and hydrostatics, the pressure gradient (typically of air but more generally of any fluid) is a physical quantity that describes in which...
5 KB (581 words) - 22:30, 29 February 2024
A temperature gradient is a physical quantity that describes in which direction and at what rate the temperature changes the most rapidly around a particular...
5 KB (475 words) - 16:46, 29 February 2024
A spatial gradient is a gradient whose components are spatial derivatives, i.e., rate of change of a given scalar physical quantity with respect to the...
2 KB (146 words) - 00:04, 25 October 2023
geometry, the four-gradient (or 4-gradient) ∂ {\displaystyle {\boldsymbol {\partial }}} is the four-vector analogue of the gradient ∇ → {\displaystyle...
48 KB (8,619 words) - 16:27, 8 May 2024
An image gradient is a directional change in the intensity or color in an image. The gradient of the image is one of the fundamental building blocks in...
7 KB (872 words) - 02:39, 9 October 2023
The Alveolar–arterial gradient (A-aO 2, or A–a gradient), is a measure of the difference between the alveolar concentration (A) of oxygen and the arterial...
10 KB (1,540 words) - 20:19, 4 March 2024
Grade (slope) (redirect from Road gradient)
The grade (US) or gradient (UK) (also called stepth, slope, incline, mainfall, pitch or rise) of a physical feature, landform or constructed line refers...
30 KB (3,082 words) - 04:17, 24 January 2024
Texture gradient is the distortion in size which closer objects have compared to objects farther away. It also involves groups of objects appearing denser...
3 KB (268 words) - 02:07, 27 October 2023
by the gradient of the function at the current point. Examples of gradient methods are the gradient descent and the conjugate gradient. Gradient descent...
1 KB (109 words) - 05:36, 17 April 2022
environmental gradient, or climate gradient, is a change in abiotic (non-living) factors through space (or time). Environmental gradients can be related...
13 KB (1,460 words) - 02:18, 3 January 2024
Stream gradient (or stream slope) is the grade (or slope) of a stream. It is measured by the ratio of drop in elevation and horizontal distance. It is...
5 KB (645 words) - 21:58, 27 February 2024
wind gradient, more specifically wind speed gradient or wind velocity gradient, or alternatively shear wind, is the vertical component of the gradient of...
35 KB (4,299 words) - 16:29, 29 February 2024
The gradient theorem, also known as the fundamental theorem of calculus for line integrals, says that a line integral through a gradient field can be evaluated...
20 KB (3,001 words) - 18:43, 3 April 2024
Gradient noise is a type of noise commonly used as a procedural texture primitive in computer graphics. It is conceptually different from[further explanation...
1 KB (152 words) - 07:56, 25 February 2024
A diffusion gradient is a gradient in the rates of diffusion of multiple groups of molecules through a medium or substrate. The groups of molecules may...
1 KB (104 words) - 12:27, 1 October 2021
Gradient-index (GRIN) optics is the branch of optics covering optical effects produced by a gradient of the refractive index of a material. Such gradual...
14 KB (1,858 words) - 22:50, 7 December 2023
Slope (redirect from Gradient of a line)
In mathematics, the slope or gradient of a line is a number that describes the direction and steepness of the line. Often denoted by the letter m, slope...
18 KB (2,619 words) - 00:12, 28 April 2024