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back propagation

См. также в других словарях:

  • Back-Propagation — Backpropagation oder auch Backpropagation of Error bzw. selten auch Fehlerrückführung[1] (auch Rückpropagierung) ist ein verbreitetes Verfahren für das Einlernen von künstlichen neuronalen Netzen. Formuliert wurde es zuerst 1974 durch Paul Werbos …   Deutsch Wikipedia

  • Back-arc basin — Back arc basins (or retro arc basins) are geologic features, submarine basins associated with island arcs and subduction zones.They are found at some convergent plate boundaries, presently concentrated in the Western Pacific ocean. Most of them… …   Wikipedia

  • back-scattering — Radio wave propagation in which the direction of the incident and scattered waves, resolved along a reference direction (usually horizontal), are oppositely directed. A signal received by back scattering is often referred to as “back scatter” …   Military dictionary

  • propagation delay —    In communications, any delay between the time a signal enters the transmission channel and the time it is received.    This delay is relatively small across a LAN, but can become considerable in satellite communications, in which the signal… …   Dictionary of networking

  • back bulb — noun : a pseudobulb on certain types of orchid plants that remains on the plant after the terminal growth has been removed and is used in the propagation of certain orchids …   Useful english dictionary

  • Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… …   Wikipedia

  • Belief propagation — is a message passing algorithm for performing inference on graphical models, such as Bayesian networks and Markov random fields. It calculates the marginal distribution for each unobserved node, conditional on any observed nodes. Belief… …   Wikipedia

  • Non-line-of-sight propagation — Non line of sight (NLOS) or near line of sight is a term used to describe radio transmission across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to… …   Wikipedia

  • Sporadic E propagation — Sporadic E or Es is an unusual form of radio propagation utilizing characteristics of the earth s ionosphere. Whereas most forms of sky wave propagation use the normal and cyclic ionization properties of the ionosphere s F region to refract (or… …   Wikipedia

  • feed-back — [ fidbak ] n. m. inv. • 1950; mot angl., de to feed « nourrir » et back « en retour » ♦ Anglic. 1 ♦ Automat. Réglage des causes par les effets. ⇒ contre réaction, rétroaction. Par ext. Dans un processus, Modification de ce qui précède par ce qui… …   Encyclopédie Universelle

  • feed back — ⇒FEED( )BACK, (FEED BACK, FEED BACK)subst. masc. Réglage des causes par les effets, dans un processus d autorégulation. Synon. rétroaction. Les effets d entraînement (...) émanant d un centre nerveux ne peuvent pas être (...) prédéterminés, non… …   Encyclopédie Universelle

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