• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
What is CLIQUE - ugweb.cs.ualberta.ca
What is CLIQUE - ugweb.cs.ualberta.ca

... dense units in K-dimensions. „ Two K-dimensional units u1, u2 are connected if they have a common face, or if there exists other K-dim unit ui, such that u1, ui and u2 are connected consequently. „ A region in K dimensions is an axisparallel rectangular K-dimensional set. ...
Normalizing and Redistributing Variables
Normalizing and Redistributing Variables

Logistic regression
Logistic regression

... • Maximum likelihood (we find the parameters that are the most likely, given our data) We never bothered to consider maximum likelihood in standard multiple regression, because you can show that they lead to exactly the same estimator. OLS does not work well in logistic regression, but maximum likel ...
K-Means Clustering
K-Means Clustering

... • Instead of assigning each object to a dedicated cluster, EM assigns each object to a cluster according to a weight representing the probability of membership.  new means are computed based on weighted measures. EM Algorithm • Make an initial guess of the parameter vector: randomly selecting k obj ...
Group C
Group C

AN IMPROVED DENSITY BASED k
AN IMPROVED DENSITY BASED k

Self-Adaptive Niching Differential Evolution and Its Application
Self-Adaptive Niching Differential Evolution and Its Application

... optimization; I.5.4 [Computing Methodoloogies]: Pattern Recognition—Signal processing ...
Using Algorithms
Using Algorithms

Bayesian Methods for Machine Learning
Bayesian Methods for Machine Learning

LogisticRegressionHandout
LogisticRegressionHandout

... The Study Of Interest (Example on page 575 of text): The data provided below is from a study to assess the ability to complete a task within a specified time pertaining to a complex programming problem, and to relate this ability to the experience level of the programmer. Twenty-five programmers wer ...
Learning Optimization for Decision Tree Classification of Non
Learning Optimization for Decision Tree Classification of Non

MATH 2311
MATH 2311

Subgroup Discovery Method SUBARP
Subgroup Discovery Method SUBARP

... be a factor of that formula. Since the formula consists of clauses combined by ”or,” the factor f also evaluates to False for all records of B. Let S be the subset of records for which f evaluates to True. Evidently, S is a subset of A. We introduce a direct description of S by an example. Suppose t ...
Agents: Definition, Classification and Structure
Agents: Definition, Classification and Structure

... Problems ...
Machine Learning - K
Machine Learning - K

... 1)Assign each object to the cluster of the nearest seed point measured with a specific distance metric 2)Compute new seed points as the centroids of the clusters of the current partition (the centroid is the centre, i.e., mean point, of the cluster) 3)Go back to Step 1), stop when no more new assign ...
Statistics in Astronomy Initial question: How do you maximize the
Statistics in Astronomy Initial question: How do you maximize the

Document
Document

... by about a factor of 2.5 on small datasets and better than an order of magnitude for reasonably large datasets. ...
pptx
pptx

Advanced Methods and Models in Behavioral
Advanced Methods and Models in Behavioral

Slide 1
Slide 1

... • Logistic regression used to estimate relationship between concentration of substance and response variable • Equation used to solve for concentration that produces a given level of response ...
Using fuzzy temporal logic for monitoring behavior
Using fuzzy temporal logic for monitoring behavior

LX3520322036
LX3520322036

... Partly and completely overlapped group structures make it difficult to determine the number and structure of clusters in multivariate data set. The cases of partly and completely overlapped group structures in heterogeneous data are shown in Figure 01. It shows also mixture structure in data. The fi ...
Implementation of Combined Approach of Prototype  Shikha Gadodiya
Implementation of Combined Approach of Prototype Shikha Gadodiya

... stage. In practice, not all information in a training set is useful therefore it is possible to discard some irrelevant prototypes. Such process of discarding superfluous instances from training set is known as “prototype selection”. Then newly generated minimal training set is provided to the class ...
A Spatiotemporal Data Mining Framework for
A Spatiotemporal Data Mining Framework for

Similarity Analysis in Social Networks Based on Collaborative Filtering
Similarity Analysis in Social Networks Based on Collaborative Filtering

... problem is the difficulty to find the information useful for us, among big amounts of useless one. Choosing among millions of products is challenging for consumers, and recommending products to customers is difficult for these sites. Recommender systems have emerged in response to this problem. A re ...
< 1 ... 104 105 106 107 108 109 110 111 112 ... 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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report