Kernel
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Look up kernel in Wiktionary, the free dictionary. |
Kernel may refer to:
Computing
- Kernel (image processing), a matrix used for image convolution
- Kernel (operating system), the central component of most operating systems
- Compute kernel, in GPGPU programming
- Kernel method, in machine learning
- In numerical analysis, a subroutine that performs a common numerical operation
- In particular, a routine that is executed in a vectorized loop; see, e.g., General-purpose computing on graphics processing units § Kernels
- Kernelization, a technique for designing efficient algorithms
Mathematics
Objects
- Kernel (algebra), a general concept that includes:
- Kernel (linear algebra) or null space, a set of vectors mapped to the zero vector
- Kernel (category theory), a generalization of the kernel of a homomorphism
- Kernel (set theory), an equivalence relation: partition by image under a function
- Difference kernel, a binary equalizer: the kernel of the difference of two functions
Functions
- Kernel (geometry), the set of points within a polygon from which the whole polygon boundary is visible
- Kernel (statistics), a weighting function used in kernel density estimation to estimate the probability density function of a random variable
- Integral kernel or kernel function, a function of two variables that defines an integral transform
- Heat kernel, the fundamental solution to the heat equation on a specified domain
- Convolution kernel
- Stochastic kernel, the transition function of a stochastic process
- Transition kernel, a generalization of a stochastic kernel
- Pricing kernel, the stochastic discount factor used in mathematical finance
- Positive-definite kernel, a generalization of a positive-definite matrix
- Kernel trick, in statistics
- Reproducing kernel Hilbert space
Natural sciences
- Seed, inside the nut of most plants, especially:
- Atomic nucleus, the center of an atom
Other uses
- Kernel (digital media company), an e-commerce website
- Kernel (EP), by the band Seam
- Kernel (neurotechnology company), a developer of neural interfaces
- Kernel Fleck, a character in The Demonata series of books
- The Kernel Brewery, a craft brewery in London
- The Kernel, an Internet culture website, now part of The Daily Dot
People
- Brigitte Kernel (born 1959), French journalist and writer
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