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1. |
Record Nr. |
UNINA9910459287203321 |
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Autore |
Chandorkar A. G |
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Titolo |
Research methodology in medical sciences [[electronic resource] /] / A.G. Chandorkar, B.S. Nagoba |
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Pubbl/distr/stampa |
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Mumbai [India], : Himalaya Pub. House, 2010 |
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ISBN |
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1-282-80852-4 |
9786612808524 |
1-4416-6201-4 |
93-5043-191-2 |
600-00-2813-X |
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Edizione |
[Rev. ed.] |
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Descrizione fisica |
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1 online resource (184 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Medical sciences - Research |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references. |
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Nota di contenuto |
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COVER; CONTENTS; Medical Research in the Last Two Decades; Introduction to Research; Basics of Research Methodology; Serendipity in Research; Clinical Trials; Ethics in Medical Research; Statistical Methods for Research; Meta - Analysis; How to Write a Paper?; Dissertation Writing; Dissertation - Is It Only Method to Teach Post-graduates?; Critical Review and Evaluation of Scientific Research Paper; Contribution of Library in Research process; Searching E-Medical Literature and Articles; Spoken Communication; Visual Aids in Spoken Communication |
Use of Overhead Projector in Spoken CommunicationFurther Reading |
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Sommario/riassunto |
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Research is an integral part for development of knowledge in any field of science, especially in the medial science. The primary objective of this book is to encourage and train the medical practitioner in Philosophy and Principles of Medical research which will help in enhacing their research and communication skills. |
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2. |
Record Nr. |
UNINA9910141572603321 |
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Autore |
Pourahmadi Mohsen |
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Titolo |
High-dimensional covariance estimation [[electronic resource] /] / Mohsen Pourahmadi |
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Pubbl/distr/stampa |
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Hoboken, NJ, : Wiley, c2013 |
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ISBN |
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1-118-57366-8 |
1-118-57361-7 |
1-118-57365-X |
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Descrizione fisica |
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1 online resource (208 p.) |
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Collana |
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Wiley series in probability and statistics |
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Classificazione |
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Disciplina |
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Soggetti |
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Analysis of covariance |
Multivariate analysis |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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HIGH-DIMENSIONAL COVARIANCE ESTIMATION; CONTENTS; PREFACE; I MOTIVATION AND THE BASICS; 1 INTRODUCTION; 1.1 Least Squares and Regularized Regression; 1.2 Lasso: Survival of the Bigger; 1.3 Thresholding the Sample Covariance Matrix; 1.4 Sparse PCA and Regression; 1.5 Graphical Models: Nodewise Regression; 1.6 Cholesky Decomposition and Regression; 1.7 The Bigger Picture: Latent Factor Models; 1.8 Further Reading; 2 DATA, SPARSITY, AND REGULARIZATION; 2.1 Data Matrix: Examples; 2.2 Shrinking the Sample Covariance Matrix; 2.3 Distribution of the Sample Eigenvalues |
2.4 Regularizing Covariances Like a Mean2.5 The Lasso Regression; 2.6 Lasso: Variable Selection and Prediction; 2.7 Lasso: Degrees of Freedom and BIC; 2.8 Some Alternatives to the Lasso Penalty; 3 COVARIANCE MATRICES; 3.1 Definition and Basic Properties; 3.2 The Spectral Decomposition; 3.3 Structured Covariance Matrices; 3.4 Functions of a Covariance Matrix; 3.5 PCA: The Maximum Variance Property; 3.6 Modified Cholesky Decomposition; 3.7 Latent Factor Models; 3.8 GLM for Covariance Matrices; 3.9 GLM via the Cholesky Decomposition; 3.10 GLM for Incomplete Longitudinal Data |
3.10.1 The Incoherency Problem in Incomplete Longitudinal Data3.10.2 The Incomplete Data and The EM Algorithm; 3.11 A Data Example: Fruit Fly Mortality Rate; 3.12 Simulating Random Correlation Matrices; 3.13 |
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Bayesian Analysis of Covariance Matrices; II COVARIANCE ESTIMATION: REGULARIZATION; 4 REGULARIZING THE EIGENSTRUCTURE; 4.1 Shrinking the Eigenvalues; 4.2 Regularizing The Eigenvectors; 4.3 A Duality between PCA and SVD; 4.4 Implementing Sparse PCA: A Data Example; 4.5 Sparse Singular Value Decomposition (SSVD); 4.6 Consistency of PCA; 4.7 Principal Subspace Estimation; 4.8 Further Reading |
5 SPARSE GAUSSIAN GRAPHICAL MODELS5.1 Covariance Selection Models: Two Examples; 5.2 Regression Interpretation of Entries of Σ-1; 5.3 Penalized Likelihood and Graphical Lasso; 5.4 Penalized Quasi-Likelihood Formulation; 5.5 Penalizing the Cholesky Factor; 5.6 Consistency and Sparsistency; 5.7 Joint Graphical Models; 5.8 Further Reading; 6 BANDING, TAPERING, AND THRESHOLDING; 6.1 Banding the Sample Covariance Matrix; 6.2 Tapering the Sample Covariance Matrix; 6.3 Thresholding the Sample Covariance Matrix; 6.4 Low-Rank Plus Sparse Covariance Matrices; 6.5 Further Reading |
7 MULTIVARIATE REGRESSION: ACCOUNTING FOR CORRELATION7.1 Multivariate Regression and LS Estimators; 7.2 Reduced Rank Regressions (RRR); 7.3 Regularized Estimation of B; 7.4 Joint Regularization of (B, Ω); 7.5 Implementing MRCE: Data Examples; 7.5.1 Intraday Electricity Prices; 7.5.2 Predicting Asset Returns; 7.6 Further Reading; BIBLIOGRAPHY; INDEX; WILEY SERIES IN PROBABILITY AND STATISTICS |
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Sommario/riassunto |
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"Focusing on methodology and computation more than on theorems and proofs, this book provides computationally feasible and statistically efficient methods for estimating sparse and large covariance matrices of high-dimensional data. Extensive in breadth and scope, it features ample applications to a number of applied areas, including business and economics, computer science, engineering, and financial mathematics; recognizes the important and significant contributions of longitudinal and spatial data; and includes various computer codes in R throughout the text and on an author-maintained web site"-- |
"The aim of this book is to provide computationally feasible and statistically efficient methods for estimating sparse and large covariance matrices of high-dimensional data"-- |
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3. |
Record Nr. |
UNIORUON00429134 |
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Titolo |
Bibliografia di studi di archeologia, scienze dell'antichità e storia dell'arte / a cura di Sergio Mineo ed Emanuela Zappata |
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Pubbl/distr/stampa |
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Roma, : L'Erma di Bretschneider, 1995 |
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Descrizione fisica |
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Disciplina |
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Soggetti |
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Archeologia - Bibliografia |
Arte - Storia - Bibliografia |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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