Author: Dina Bassiri
Publisher:
ISBN:
Category : Education
Languages : en
Pages : 344
Book Description
Large and Small Sample Properties of Maximum Likelihood Estimates for the Hierarchical Linear Model
Author: Dina Bassiri
Publisher:
ISBN:
Category : Education
Languages : en
Pages : 344
Book Description
Publisher:
ISBN:
Category : Education
Languages : en
Pages : 344
Book Description
On the Small Sample Properties of Norm-restricted Maximum Likelihood Estimators for Logistic Regression Models
Author: Diane E. Duffy
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 50
Book Description
Maximum Likelihood Estimate in Discrete Hierarchical Log-Linear Models
Author: Nanwei Wang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Hierarchical log-linear models are essential tools used for relationship identification between variables in complex high-dimensional problems. In this thesis we study two problems: the computation and the existence of the maximum likelihood estimate (henceforth abbreviated MLE) in high-dimensional hierarchical log-linear models. When the number of variables is large, computing the MLE of the parameters is a difficult task to accomplish. A popular approach is to estimate the composite MLE rather than the MLE itself, that is, estimate the value of the parameter that maximizes the product of local conditional likelihoods. A more recent development is to choose the components of the composite likelihood to be local marginal likelihoods. We first show that the estimates obtained from local conditional and marginal likelihoods are identical. Second, we study the asymptotic properties of the composite MLE obtained by averaging the local estimates, under the double asymptotic regime, when both the dimension p and sample size N go to infinity. We compare the rate of convergence to the true parameter of the composite MLE with that of the global MLE under the same conditions. We also look at the asymptotic properties of the composite MLE when p is fixed and N goes to infinity and thus recover the same asymptotic results for p fixed as those given by Liu in 2012. The existence of the MLE in hierarchical log-linear models has important consequences for statistical inference: estimation, confidence intervals and testing as we shall see. Determining whether this estimate exists is equivalent to finding whether the data belongs to the boundary of the marginal polytope of the model or not. In 2012, Fienberg and Rinaldo gave a linear programming method that determines the smallest such face for relatively low-dimensional models. In this thesis, we consider higher-dimensional problems. We develop the methology to obtain an outer and inner approximation to the smallest face of the marginal polytope containing the data vector. Outer approximations are obtained by looking at submodels of the original hierarchical model, and inner approximations are obtained by working with larger models.
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Hierarchical log-linear models are essential tools used for relationship identification between variables in complex high-dimensional problems. In this thesis we study two problems: the computation and the existence of the maximum likelihood estimate (henceforth abbreviated MLE) in high-dimensional hierarchical log-linear models. When the number of variables is large, computing the MLE of the parameters is a difficult task to accomplish. A popular approach is to estimate the composite MLE rather than the MLE itself, that is, estimate the value of the parameter that maximizes the product of local conditional likelihoods. A more recent development is to choose the components of the composite likelihood to be local marginal likelihoods. We first show that the estimates obtained from local conditional and marginal likelihoods are identical. Second, we study the asymptotic properties of the composite MLE obtained by averaging the local estimates, under the double asymptotic regime, when both the dimension p and sample size N go to infinity. We compare the rate of convergence to the true parameter of the composite MLE with that of the global MLE under the same conditions. We also look at the asymptotic properties of the composite MLE when p is fixed and N goes to infinity and thus recover the same asymptotic results for p fixed as those given by Liu in 2012. The existence of the MLE in hierarchical log-linear models has important consequences for statistical inference: estimation, confidence intervals and testing as we shall see. Determining whether this estimate exists is equivalent to finding whether the data belongs to the boundary of the marginal polytope of the model or not. In 2012, Fienberg and Rinaldo gave a linear programming method that determines the smallest such face for relatively low-dimensional models. In this thesis, we consider higher-dimensional problems. We develop the methology to obtain an outer and inner approximation to the smallest face of the marginal polytope containing the data vector. Outer approximations are obtained by looking at submodels of the original hierarchical model, and inner approximations are obtained by working with larger models.
Maximum Likelihood Estimation for Sample Surveys
Author: Raymond L. Chambers
Publisher: CRC Press
ISBN: 1420011359
Category : Mathematics
Languages : en
Pages : 374
Book Description
Sample surveys provide data used by researchers in a large range of disciplines to analyze important relationships using well-established and widely used likelihood methods. The methods used to select samples often result in the sample differing in important ways from the target population and standard application of likelihood methods can lead to
Publisher: CRC Press
ISBN: 1420011359
Category : Mathematics
Languages : en
Pages : 374
Book Description
Sample surveys provide data used by researchers in a large range of disciplines to analyze important relationships using well-established and widely used likelihood methods. The methods used to select samples often result in the sample differing in important ways from the target population and standard application of likelihood methods can lead to
Maximum Likelihood Estimation
Author: Scott R. Eliason
Publisher: SAGE
ISBN: 9780803941076
Category : Mathematics
Languages : en
Pages : 100
Book Description
This is a short introduction to Maximum Likelihood (ML) Estimation. It provides a general modeling framework that utilizes the tools of ML methods to outline a flexible modeling strategy that accommodates cases from the simplest linear models (such as the normal error regression model) to the most complex nonlinear models linking endogenous and exogenous variables with non-normal distributions. Using examples to illustrate the techniques of finding ML estimators and estimates, the author discusses what properties are desirable in an estimator, basic techniques for finding maximum likelihood solutions, the general form of the covariance matrix for ML estimates, the sampling distribution of ML estimators; the use of ML in the normal as well as other distributions, and some useful illustrations of likelihoods.
Publisher: SAGE
ISBN: 9780803941076
Category : Mathematics
Languages : en
Pages : 100
Book Description
This is a short introduction to Maximum Likelihood (ML) Estimation. It provides a general modeling framework that utilizes the tools of ML methods to outline a flexible modeling strategy that accommodates cases from the simplest linear models (such as the normal error regression model) to the most complex nonlinear models linking endogenous and exogenous variables with non-normal distributions. Using examples to illustrate the techniques of finding ML estimators and estimates, the author discusses what properties are desirable in an estimator, basic techniques for finding maximum likelihood solutions, the general form of the covariance matrix for ML estimates, the sampling distribution of ML estimators; the use of ML in the normal as well as other distributions, and some useful illustrations of likelihoods.
Hierarchical Linear Models
Author: Stephen W. Raudenbush
Publisher: SAGE
ISBN: 9780761919049
Category : Social Science
Languages : en
Pages : 520
Book Description
New edition of a text in which Raudenbush (U. of Michigan) and Bryk (sociology, U. of Chicago) provide examples, explanations, and illustrations of the theory and use of hierarchical linear models (HLM). New material in Part I (Logic) includes information on multivariate growth models and other topics.
Publisher: SAGE
ISBN: 9780761919049
Category : Social Science
Languages : en
Pages : 520
Book Description
New edition of a text in which Raudenbush (U. of Michigan) and Bryk (sociology, U. of Chicago) provide examples, explanations, and illustrations of the theory and use of hierarchical linear models (HLM). New material in Part I (Logic) includes information on multivariate growth models and other topics.
An Introduction to Multilevel Modeling Techniques
Author: Ronald H. Heck
Publisher: Psychology Press
ISBN: 1135678324
Category : Computers
Languages : en
Pages : 224
Book Description
Multilevel modelling is a data analysis method that is frequently used to investigate hierarchal data structures in educational, behavioural, health, and social sciences disciplines. Multilevel data analysis exploits data structures that cannot be adequately investigated using single-level analytic methods such as multiple regression, path analysis, and structural modelling. This text offers a comprehensive treatment of multilevel models for univariate and multivariate outcomes. It explores their similarities and differences and demonstrates why one model may be more appropriate than another, given the research objectives. -- Provided by Publisher.
Publisher: Psychology Press
ISBN: 1135678324
Category : Computers
Languages : en
Pages : 224
Book Description
Multilevel modelling is a data analysis method that is frequently used to investigate hierarchal data structures in educational, behavioural, health, and social sciences disciplines. Multilevel data analysis exploits data structures that cannot be adequately investigated using single-level analytic methods such as multiple regression, path analysis, and structural modelling. This text offers a comprehensive treatment of multilevel models for univariate and multivariate outcomes. It explores their similarities and differences and demonstrates why one model may be more appropriate than another, given the research objectives. -- Provided by Publisher.
Large Sample Properties of Maximum Likelihood Estimators
Author: Nicholas Herbert Stern
Publisher:
ISBN:
Category : Mathematical statistics
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Mathematical statistics
Languages : en
Pages : 28
Book Description
SAGE Quantitative Research Methods
Author: W Paul Vogt
Publisher: SAGE
ISBN: 144627571X
Category : Social Science
Languages : en
Pages : 1761
Book Description
For more than 40 years, SAGE has been one of the leading international publishers of works on quantitative research methods in the social sciences. This new collection provides readers with a representative sample of the best articles in quantitative methods that have appeared in SAGE journals as chosen by W. Paul Vogt, editor of other successful major reference collections such as Selecting Research Methods (2008) and Data Collection (2010). The volumes and articles are organized by theme rather than by discipline. Although there are some discipline-specific methods, most often quantitative research methods cut across disciplinary boundaries. Volume One: Fundamental Issues in Quantitative Research Volume Two: Measurement for Causal and Statistical Inference Volume Three: Alternatives to Hypothesis Testing Volume Four: Complex Designs for a Complex World
Publisher: SAGE
ISBN: 144627571X
Category : Social Science
Languages : en
Pages : 1761
Book Description
For more than 40 years, SAGE has been one of the leading international publishers of works on quantitative research methods in the social sciences. This new collection provides readers with a representative sample of the best articles in quantitative methods that have appeared in SAGE journals as chosen by W. Paul Vogt, editor of other successful major reference collections such as Selecting Research Methods (2008) and Data Collection (2010). The volumes and articles are organized by theme rather than by discipline. Although there are some discipline-specific methods, most often quantitative research methods cut across disciplinary boundaries. Volume One: Fundamental Issues in Quantitative Research Volume Two: Measurement for Causal and Statistical Inference Volume Three: Alternatives to Hypothesis Testing Volume Four: Complex Designs for a Complex World
Introducing Multilevel Modeling
Author: Ita G G Kreft
Publisher: SAGE
ISBN: 9780761951414
Category : Mathematics
Languages : en
Pages : 164
Book Description
This is the first practical guide to using multilevel models in social research. The authors' approach is user-oriented, with formal mathematics and statistics kept to the minimum and worked examples using real data sets.
Publisher: SAGE
ISBN: 9780761951414
Category : Mathematics
Languages : en
Pages : 164
Book Description
This is the first practical guide to using multilevel models in social research. The authors' approach is user-oriented, with formal mathematics and statistics kept to the minimum and worked examples using real data sets.