expected value of sample information (EVSI) is the expected increase in utility that a decision-maker could obtain from gaining access to a sample of...
8 KB (1,441 words) - 19:09, 13 May 2025
The expected value of perfect information analysis tries to measure the expected cost of that uncertainty, which “can be interpreted as the expected value...
8 KB (1,419 words) - 23:47, 19 June 2025
known expected value of perfect information (EVPI) and expected value of sample information (EVSI). Note that VoI is not necessarily equal to "value of decision...
10 KB (1,431 words) - 01:42, 16 June 2025
expected value sometimes may not even be included in the sample data set; it is not the value you would expect to get in reality. The expected value of...
52 KB (7,637 words) - 10:19, 24 June 2025
information Expected value of sample information, the expected increase in utility that a decision-maker could obtain from gaining access to a sample...
1 KB (164 words) - 21:27, 4 January 2024
quantitative policy analysis, the expected value of including uncertainty (EVIU) is a measure that quantifies the potential benefit of incorporating uncertainty...
12 KB (1,850 words) - 19:10, 13 May 2025
Statistic (redirect from Sample statistic)
the sample mean is an unbiased estimator of the population mean. This means that the expected value of the sample mean equals the true population mean. A...
6 KB (791 words) - 09:23, 1 February 2025
the variance of the score, or the expected value of the observed information. The role of the Fisher information in the asymptotic theory of maximum-likelihood...
52 KB (7,376 words) - 12:50, 8 June 2025
sampling Expectation–maximization algorithm Expectation propagation Expected mean squares Expected utility hypothesis Expected value Expected value of...
87 KB (8,280 words) - 23:04, 12 March 2025
Standard deviation (redirect from Sample standard deviation)
close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range...
59 KB (8,235 words) - 23:08, 17 June 2025
subset of variables can be approximated by simply considering the samples for that subset of variables, ignoring the rest. The expected value of any variable...
37 KB (6,064 words) - 22:35, 19 June 2025
theory, the sample space (also called sample description space, possibility space, or outcome space) of an experiment or random trial is the set of all possible...
15 KB (1,893 words) - 08:46, 16 December 2024
Perplexity (category Entropy and information)
Wiktionary, the free dictionary. In information theory, perplexity is a measure of uncertainty in the value of a sample from a discrete probability distribution...
13 KB (1,893 words) - 18:04, 6 June 2025
Deviation (statistics) (redirect from Expected deviation)
an observed value of a variable and another designated value, frequently the mean of that variable. Deviations with respect to the sample mean and the...
15 KB (1,842 words) - 20:09, 23 May 2025
Chi-squared test (redirect from Chi-square goodness of fit test)
estimated from the sample, and suggested that, with the notation of mi being the true expected numbers and m′i being the estimated expected numbers, the difference...
22 KB (2,432 words) - 16:59, 17 March 2025
estimating sample size, but gives a hint of what is the appropriate sample size where parameters such as expected standard deviations or expected differences...
28 KB (4,022 words) - 13:32, 1 May 2025
Bayesian experimental design (redirect from Bayesian design of experiments)
experiment. Bayesian optimization Optimal design Active Learning Expected value of sample information Lee, Se Yoon (2024). "Using Bayesian statistics in confirmatory...
12 KB (1,437 words) - 20:34, 2 March 2025
m_{1}} gives the sample mean, denoted x ¯ {\displaystyle {\bar {x}}} . Substituting this estimate in the formula for the expected value of a geometric distribution...
35 KB (5,094 words) - 02:03, 20 May 2025
{\displaystyle X} and Y {\displaystyle Y} . MI is the expected value of the pointwise mutual information (PMI). The quantity was defined and analyzed by Claude...
56 KB (8,853 words) - 23:22, 5 June 2025
design of experiments, a sample ratio mismatch (SRM) is a statistically significant difference between the expected and actual ratios of the sizes of treatment...
5 KB (505 words) - 15:18, 11 June 2025
Variance (redirect from Sample variance)
is the expected value of the squared deviation from the mean of a random variable. The standard deviation (SD) is obtained as the square root of the variance...
61 KB (10,215 words) - 16:29, 24 May 2025
Test statistic (redirect from Statistic of interest)
the value of T can be compared with its expected value under the null hypothesis of 50, and since the sample size is large, a normal distribution can...
13 KB (1,099 words) - 21:44, 21 July 2024
produce statistical measurements of the target population that are unbiased, because the expected value of the sample mean is equal to the population mean...
14 KB (1,725 words) - 10:21, 20 March 2025
In the context of decision trees in information theory and machine learning, information gain refers to the conditional expected value of the Kullback–Leibler...
21 KB (3,032 words) - 10:59, 9 June 2025
tool, where the expected values (or expected utility) of competing alternatives are calculated. A decision tree consists of three types of nodes: Decision...
26 KB (3,463 words) - 04:00, 6 June 2025
Beta distribution (category CS1: long volume value)
variances appear in the four-parameter Fisher information matrix (§ Fisher information.) Expected values for logarithmic transformations (useful for maximum...
245 KB (40,562 words) - 09:03, 24 June 2025
condition for a sample rate that permits a discrete sequence of samples to capture all the information from a continuous-time signal of finite bandwidth...
51 KB (6,838 words) - 02:04, 23 June 2025
Standard error (redirect from Standard error of the mean)
estimate of that standard deviation. In other words, it is the standard deviation of statistic values (each value is per sample that is a set of observations...
20 KB (2,781 words) - 01:28, 24 June 2025
data set size required for a robust estimate of the sample mean. The value is larger when the expected variation between data sets (within the larger...
2 KB (313 words) - 03:01, 19 September 2024
Mean squared error (redirect from Sum of squared differences)
difference between the estimated values and the true value. MSE is a risk function, corresponding to the expected value of the squared error loss. The fact...
24 KB (3,861 words) - 12:45, 11 May 2025