(expected value of sample information)

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• Expected value of sample information — In decision theory, the expected value of sample information (EVSI) is the price that one would be willing to pay in order to gain access to a sample from the distribution about which the prediction has to be made. For example, if one needs to… …   Wikipedia

• Expected value of perfect information — In decision theory, the expected value of perfect information (EVPI) is the price that one would be willing to pay in order to gain access to perfect information. [Douglas Hubbard How to Measure Anything: Finding the Value of Intangibles in… …   Wikipedia

• Value of information — (VoI) in decision analysis is the amount a decision maker would be willing to pay for information prior to making a decision. imilar termsVoI is sometimes distinguished into value of perfect information, also called value of clairvoyance (VoC),… …   Wikipedia

• Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample …   Wikipedia

• information theory — the mathematical theory concerned with the content, transmission, storage, and retrieval of information, usually in the form of messages or data, and esp. by means of computers. [1945 50] * * * ▪ mathematics Introduction       a mathematical… …   Universalium

• sample preparation — ▪ chemistry Introduction  in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special …   Universalium

• Fisher information — In statistics and information theory, the Fisher information (denoted mathcal{I}( heta)) is the variance of the score. It is named in honor of its inventor, the statistician R.A. Fisher.DefinitionThe Fisher information is a way of measuring the… …   Wikipedia

• Akaike information criterion — Akaike s information criterion, developed by Hirotsugu Akaike under the name of an information criterion (AIC) in 1971 and proposed in Akaike (1974), is a measure of the goodness of fit of an estimated statistical model. It is grounded in the… …   Wikipedia

• Observed information — In statistics, the observed information, or observed Fisher information, is the negative of the second derivative (the Hessian matrix) of the log likelihood (the logarithm of the likelihood function). It is a sample based version of the Fisher… …   Wikipedia

• List of statistics topics — Please add any Wikipedia articles related to statistics that are not already on this list.The Related changes link in the margin of this page (below search) leads to a list of the most recent changes to the articles listed below. To see the most… …   Wikipedia

• Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer.       The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …   Universalium