Kernel

Look up kernel in Wiktionary, the free dictionary.

Kernel may refer to:

Computing

Kernel (operating system), the central component of most operating systems
Kernel method, in machine learning
compute kernel, in GPGPU programming
Kernel (image processing), a matrix used for image convolution
In numerical programming, 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

Kernel (algebra), a general concept that includes
- Kernel (linear algebra), the set of all vectors which map to the zero vector
- Kernel (category theory), in category theory
- Kernel (set theory), the set of all pairs of elements that map to the same value
- Equalizer (mathematics), the set of all elements where the values of two functions coincide

Integral kernel, 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
kernel (statistics), a weighting function used in kernel density estimation to estimate the probability density function of a random variable
Stochastic kernel, the transition function of a stochastic process
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
Kernel (geometry), the set of points within a polygon from which the whole polygon boundary is visible

Seed, inside the nut of most plants
- Corn kernel
- Palm kernel
- Kernels Popcorn Limited, the largest retail popcorn chain in the world.
Atomic nucleus

Kernel (digital media company), an e-commerce website
Kernel (EP), by the band Seam
Pricing kernel, another name for the stochastic discount factor used in asset pricing
Kernel (Lilo & Stitch), experiment 014 from the Lilo & Stitch cartoon series
Kernel Fleck, a character in the Demonata series of books