Random field — A random field is a generalization of a stochastic process such that the underlying parameter need no longer be a simple real, but can instead be a multidimensional vector space or even a manifold.At its most basic, discrete case, a random field… … Wikipedia
Markov random field — A Markov random field, Markov network or undirected graphical model is a set of variables having a Markov property described by an undirected graph. A Markov random field is similar to a Bayesian network in its representation of dependencies. It… … Wikipedia
Conditional random field — A conditional random field (CRF) is a statistical modelling method often applied in pattern recognition. More specifically it is a type of discriminative undirected probabilistic graphical model. It is used to encode known relationships between… … Wikipedia
Conditional Random Field — Ein Conditional Random Field (CRF) ist ein ungerichtetes graphisches Modell. Oft werden CRFs zum Taggen von sequentiellen Daten verwendet. Das bedeutet, das CRF erhält eine Sequenz X als Eingabe und gibt eine gleichlange Sequenz Y aus. Im… … Deutsch Wikipedia
Gaussian random field — A Gaussian random field is a random field involving Gaussian probability density functions of the variables. The initial conditions of physical cosmology generated by quantum mechanical fluctuations during cosmic inflation are thought to be a… … Wikipedia
Markov Random Field — Ein Markov Random Field (kurz MRF) oder Markow Netzwerk ist ein nach dem Mathematiker A. Markow benanntes statistisches Modell, welches ungerichtete Zusammenhänge (z. B. die Ausrichtung von Elementarmagneten) in einem Feld beschreibt. Das… … Deutsch Wikipedia
Field (physics) — The magnitude of an electric field surrounding two equally charged (repelling) particles. Brighter areas have a greater magnitude. The direction of the field is not visible … Wikipedia
Random element — The term random element was introduced by Maurice Frechet in 1948 to refer to a random variable that takes values in spaces more general than had previously been widely considered. Frechet commented that the development of probability theory and… … Wikipedia
Random self-reducibility — (RSR): A good algorithm for the average case implies a good algorithm for the worst case. RSR is the ability to solve all instances of a problem by solving a large fraction of the instances.DefinitionIf a function f evaluating any instance x can… … Wikipedia
Field-tube boiler — Field tube, sectioned A Field tube boiler (also known as a bayonet tube[1] ) is a form of water tube boiler where the water tubes are single ended. The tubes are closed at one end, and they contain a concentric inner tube. Flow is thus separated… … Wikipedia
Random phase approximation — (RPA) is one of the most often used methods for describing the dynamic electronic response of systems. In RPA, electrons are assumed to respond only to the total electric potential V (r) which is the sum of the external perturbing potential V… … Wikipedia
