expectation value

expectation value — laukiamoji vertė statusas T sritis fizika atitikmenys: angl. expectation value; expected value vok. erwartender Wert, m; Erwartungswert, m rus. математическое ожидание, n; ожидаемое значение, n pranc. espérance mathématique, f …   Fizikos terminų žodynas

Expectation value (quantum mechanics) — In quantum mechanics, the expectation value is the predicted mean value of the result of an experiment. It is a fundamental concept in all areas of quantum physics. Operational definition Quantum physics shows an inherent statistical behaviour:… …   Wikipedia

Vacuum expectation value — Quantum field theory (Feynman diagram) …   Wikipedia

Expectation — Ex pec*ta tion . [L. expectio. exspectio: cf. F. expectation.] 1. The act or state of expecting or looking forward to an event as about to happen. In expectation of a guest. Tennyson. [1913 Webster] My soul, wait thou only upon God, for my… …   The Collaborative International Dictionary of English

Expectation of life — Expectation Ex pec*ta tion . [L. expectio. exspectio: cf. F. expectation.] 1. The act or state of expecting or looking forward to an event as about to happen. In expectation of a guest. Tennyson. [1913 Webster] My soul, wait thou only upon God,… …   The Collaborative International Dictionary of English

Value at risk — (VaR) is a maximum tolerable loss that could occur with a given probability within a given period of time. VaR is a widely applied concept to measure and manage many types of risk, although it is most commonly used to measure and manage the… …   Wikipedia

Expectation-maximization algorithm — An expectation maximization (EM) algorithm is used in statistics for finding maximum likelihood estimates of parameters in probabilistic models, where the model depends on unobserved latent variables. EM alternates between performing an… …   Wikipedia

Value (poker) — In poker, the strength of a hand (how likely it is to be the best according to the rules of the game being played) is often called its value; however, in the context of poker strategy the term is more often used to describe a betting tactic, a… …   Wikipedia

Value (marketing) — Marketing Key concepts Product marketing · Pricing …   Wikipedia

value — A word with several quite different meanings: in statistical analysis of quantitative data sets, the value is the score or figure observed on a particular variable for a particular case, or in specific circumstances, that is, it is a quantified… …   Dictionary of sociology

expectation — noun Date: 1540 1. the act or state of expecting ; anticipation < in expectation of what would happen > 2. a. something expected < not up to expectations > < expectations for an economic recovery > b …   New Collegiate Dictionary