42,772 articles
Generalized linear model
A generalized linear model (GLM) is a regression framework linking exponential-family responses to predictors through a link function, formulated by Nelder and Wedderburn in 1972.
Generalized mean
The generalized mean, also called the power mean or Hölder mean, is a family of averaging functions parameterized by an exponent, including the arithmetic, geometric, and harmonic means.
Generalized method of moments
The generalized method of moments (GMM) is a statistical estimation method that estimates model parameters from moment conditions without a full likelihood, introduced by Lars Peter Hansen in 1982.
Generalized minimal residual method
The generalized minimal residual method (GMRES) is an iterative Krylov subspace method for solving large sparse nonsymmetric linear systems, proposed by Saad and Schultz in 1986.
Generalized Pareto distribution
The generalized Pareto distribution (GPD) is a two-parameter probability distribution describing the sizes of exceedances above a high threshold, the standard tool of peaks-over-threshold analysis in extreme value theory.
Generalized parton distributions
Generalized parton distributions (GPDs) are functions describing the quark and gluon structure of hadrons, introduced in the 1990s and extracted mainly through deeply virtual Compton scattering.
Generalized quadrangle
A generalized quadrangle is a point-line incidence structure containing no triangles but many ordinary quadrangles, introduced by Jacques Tits in 1959 to describe rank 2 groups of Lie type.
Generalized relative entropy
Generalized relative entropy is any function of two quantum states extending the classical relative entropy, a family including Petz's quantum f-divergences, Rényi relative entropies, and min- and max-relative entropies.
Generalized renewal process
The generalized renewal process (GRP), or g-renewal process, is a stochastic model for repairable systems where repairs restore an intermediate state via a virtual age function.
Generalized Riemann hypothesis
The generalized Riemann hypothesis (GRH) is an unproved conjecture stating that all nontrivial zeros of every Dirichlet L-function lie on the critical line where the real part is 1/2.
Generalized Snell's law
The generalized Snell's law extends classical reflection and refraction to interfaces imposing a spatially varying phase shift, proposed by Capasso's group at Harvard in 2011.
Generalized Stokes theorem
The generalized Stokes theorem, also called the Stokes-Cartan theorem, states that the integral of a form's exterior derivative over a manifold equals its integral over the boundary.
Generalized uncertainty principle
The generalized uncertainty principle (GUP) is a proposed modification of the Heisenberg uncertainty relation that implies a minimal measurable length, usually of the order of the Planck length.
Generalized Verma module
The generalized Verma module, also called a parabolic Verma module, is a Lie algebra representation induced from a module over a parabolic subalgebra, generalizing the Verma module.
Generalized Wigner crystal
A generalized Wigner crystal is a quantum phase in which electrons form a regular charge lattice at fractional filling of a host lattice, typically a moiré superlattice.
Generating function
A generating function, also called an ordinary generating function, is a power series whose coefficients encode a number sequence, so the whole sequence can be handled as one algebraic object.
Generating function transformation
A generating function transformation systematically converts one generating function, or the sequence of coefficients it encodes, into another, ranging from elementary operations to the binomial and Stirling transforms.
Generation (particle physics)
A generation in particle physics, also called a family, is one of three sets of matter particles, each with two quarks and two leptons; all stable matter is first-generation.
Generation ship
A generation ship, also called a world ship or arkship, is a hypothetical spacecraft on an interstellar voyage lasting centuries, so the descendants of the original crew arrive at the destination.
Generic structure
A generic structure, also called a Fraïssé limit or rich model, is a countable homogeneous structure containing every finite structure from a given class, unique up to isomorphism.
Genetica
Genetica is a peer-reviewed genetics journal founded in 1919 in The Hague, Netherlands, ISSN 0016-6707, published by Kluwer and now Springer, indexed in MEDLINE, publication suspended 1944-46.
Geneviève Comte-Bellot
Geneviève Comte-Bellot, born 1929, is a French acoustician and emeritus professor at École Centrale de Lyon who founded its Centre Acoustique and is known for work on turbulence and aeroacoustics.
Gennady Shvets
Gennady Shvets is a plasma physicist and photonics researcher at Cornell University, known for laser-plasma accelerators, topological photonics, and infrared metasurface biosensing, with more than 140 papers.
Genomic best linear unbiased prediction
Genomic best linear unbiased prediction (GBLUP) is a mixed-model method that estimates breeding values from dense SNP markers, replacing pedigree relationships with a genomic relationship matrix.
Genroku
Genroku (元禄) was a Japanese era name spanning 1688 to 1704, in the middle of the Edo period under shogun Tokugawa Tsunayoshi, when kabuki, haiku, fiction, and ukiyo-e prints flourished.
GenStat
GenStat is a commercial statistical software package for data analysis and graphics, developed at Rothamsted Experimental Station and now sold by VSN International, best known for its ANOVA and REML algorithms.
Gentzen's consistency proof
Gentzen's consistency proof, also known as Gentzen's theorem, is Gerhard Gentzen's 1936 proof that Peano arithmetic is consistent, using transfinite induction up to the ordinal ε0.
Genus (mathematics)
In mathematics, genus is a topological invariant that counts a surface's handles, so a sphere has genus 0 and a torus genus 1, with related versions in graph theory and knot theory.
Genus of a curve
The genus of a curve is a nonnegative integer measuring an algebraic curve's complexity; over the complex numbers it equals the number of handles of the curve as a Riemann surface.
Geo-KOMPSAT-2A
Geo-KOMPSAT-2A, also called Cheollian 2A, is a South Korean geostationary weather satellite launched in December 2018 from French Guiana, operated by the Korea Meteorological Administration.