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Technical report MSU-CSE-04-35
Technical report MSU-CSE-04-35

... patterns. If the above heuristic holds, then our estimated preference function should approach the true preference function when the observed difference in rankings is minimal. Table 1 presents a high-level description of our unsupervised Hedge algorithm. Initially, since there is no prior knowledge ...
CR21596598
CR21596598

... Common Log Format. Pattern analysis means understanding the results obtained by the algorithms and drawing conclusions. In pattern discovery phase methods and algorithms used have been developed from several fields such as statistics, machine learning, and databases. This phase of Web usage mining h ...
Estimation - Lyle School of Engineering
Estimation - Lyle School of Engineering

Full Text
Full Text

... The SAHeart data set which is obtained from wwwstat.stanford.edu/ElemStatLearn is a retrospective sample of males in a heartdisease high-risk region of the Western Cape, South Africa. There are roughly two controls per case of CHD. Many of the CHD positive men have undergone blood pressure reduction ...
Regression Analysis (Spring, 2000)
Regression Analysis (Spring, 2000)

... If the main purpose of modeling is predicting Y only, then don’t worry. (since ESS is left the same) “Don’t worry about multicollinearity if the R-squared from the regression exceeds the R-squared of any independent variable regressed on the other independent variables.” “Don’t worry about it if the ...
IJARCCE 77
IJARCCE 77

Data Mining Case Studies in Customer Profiling
Data Mining Case Studies in Customer Profiling

Džulijana Popović
Džulijana Popović

Regression
Regression

Linear Systems
Linear Systems

Basic Concepts of Logistic Regression
Basic Concepts of Logistic Regression

... For any observed values of the independent variables, when the predicted value of p is greater than or equal to .5 (viewed as predicting success) then the % correct is equal to the value of the observed number of successes divided by the total number of observations (for those values of the independ ...
Multithreaded Implementation of the Slope One
Multithreaded Implementation of the Slope One

Streaming-Data Algorithms For High
Streaming-Data Algorithms For High

9 Scientific models and mathematical equations
9 Scientific models and mathematical equations

Similarity Join in Metric Spaces using eD-Index
Similarity Join in Metric Spaces using eD-Index

... the structure and they are utilized by the pivot-based strategy. Figure 4 illustrates the basic principle of this strategy, the object x is one object of an examined pair and pi is the reference object, called pivot. Provided that the distance between any object and pi is known, the gray area repres ...
Boosting to predict unidentified account status
Boosting to predict unidentified account status

... tree’s) – Assume 2 labels  At each stage, we pick a cut point c(iˆ) for a predictor random variable Xi which optimally divides the responses into two groups so that the resulting entropy for the two children reduces the entropy of the adult. (see next for the formula) ...
Cross-Validation
Cross-Validation

a practical case study on the performance of text classifiers
a practical case study on the performance of text classifiers

Mining Association Rules with Multiple Minimum Supports Using
Mining Association Rules with Multiple Minimum Supports Using

SAP HR Slovenia (HR-SI) Reports
SAP HR Slovenia (HR-SI) Reports

COEN 281 Term Project Predicting Movie Ratings of
COEN 281 Term Project Predicting Movie Ratings of

Clustering
Clustering

... The initial data set ...
Nonlinear Systems in Scilab
Nonlinear Systems in Scilab

SD-Map – A Fast Algorithm for Exhaustive Subgroup Discovery
SD-Map – A Fast Algorithm for Exhaustive Subgroup Discovery

An Extension of the ICP Algorithm Considering Scale Factor
An Extension of the ICP Algorithm Considering Scale Factor

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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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