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Data Mining Tutorial
Data Mining Tutorial

... If the Life Line is long and deep, then this represents a long life full of vitality and health. A short line, if strong and deep, also shows great vitality in your life and the ability to overcome health problems. However, if the line is short and shallow, then your life may have the tendency to b ...
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Cyber Situational Awareness through Operational Streaming Analysis

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Clustering II
Clustering II

FullText - Brunel University Research Archive
FullText - Brunel University Research Archive

< 1 ... 61 62 63 64 65 66 67 68 69 ... 152 >

Expectation–maximization algorithm



In statistics, an expectation–maximization (EM) algorithm is an iterative method for finding maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent variables. The EM iteration alternates between performing an expectation (E) step, which creates a function for the expectation of the log-likelihood evaluated using the current estimate for the parameters, and a maximization (M) step, which computes parameters maximizing the expected log-likelihood found on the E step. These parameter-estimates are then used to determine the distribution of the latent variables in the next E step.
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