expected regret
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Regret (decision theory) — Regret (often also called opportunity loss) is defined as the difference between the actual payoff and the payoff that would have been obtained if a different course of action had been chosen. This is also called difference regret. Furthermore,… … Wikipedia
Expected utility hypothesis — In economics, game theory, and decision theory the expected utility hypothesis is a theory of utility in which betting preferences of people with regard to uncertain outcomes (gambles) are represented by a function of the payouts (whether in… … Wikipedia
Regret — wiktionarypar|regret NOTOC Regret or Regrets may refer to: Science * Regret (emotion), an intelligent or emotional dislike for personal past acts and behaviours. * Regret (decision theory), the difference between expected loss and actual loss… … Wikipedia
Risk — takers redirects here. For the Canadian television program, see Risk Takers. For other uses, see Risk (disambiguation). Risk is the potential that a chosen action or activity (including the choice of inaction) will lead to a loss (an undesirable… … Wikipedia
Loss function — In statistics and decision theory a loss function is a function that maps an event onto a real number intuitively representing some cost associated with the event. Typically it is used for parameter estimation, and the event in question is some… … Wikipedia
religion — religionless, adj. /ri lij euhn/, n. 1. a set of beliefs concerning the cause, nature, and purpose of the universe, esp. when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and… … Universalium
Disappointment — For other uses, see Disappointment (disambiguation). Disappointment expressed by a team of American football players commiserating after a defeat. Disappointment is the feeling of dissatisfaction that follows the failure of expectations or hopes… … Wikipedia
Czech Republic — a republic in central Europe: includes the regions of Bohemia, Moravia, and part of Silesia; formerly part of Czechoslovakia; independent since 1993. 10,318,958; 30,449 sq. mi. (78,864 sq. km). Cap.: Prague. * * * Czech Republic Introduction… … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium
japan — japanner, n. /jeuh pan /, n., adj., v., japanned, japanning. n. 1. any of various hard, durable, black varnishes, originally from Japan, for coating wood, metal, or other surfaces. 2. work varnished and figured in the Japanese manner. 3. Japans,… … Universalium
Japan — /jeuh pan /, n. 1. a constitutional monarchy on a chain of islands off the E coast of Asia: main islands, Hokkaido, Honshu, Kyushu, and Shikoku. 125,716,637; 141,529 sq. mi. (366,560 sq. km). Cap.: Tokyo. Japanese, Nihon, Nippon. 2. Sea of, the… … Universalium
