Ton de Waal's Books

Handbook of Statistical Data Editing and Imputation

By: Ton de Waal,Jeroen Pannekoek,Sander Scholtus

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Handbook of Statistical Data Editing and Imputation

By: Ton de Waal,Jeroen Pannekoek,Sander Scholtus

A practical, one-stop reference on the theory and applications of statistical data editing and imputation techniques Collected survey data are vulnerable to error. In particular, the data collection stage is a potential source of errors and missing values. As a result, the important role of statistical data editing, and the amount of resources involved, has motivated considerable research efforts to enhance the efficiency and effectiveness of this process. Handbook of Statistical Data Editing and Imputation equips readers with the essential statistical procedures for detecting and correcting inconsistencies and filling in missing values with estimates. The authors supply an easily accessible treatment of the existing methodology in this field, featuring an overview of common errors encountered in practice and techniques for resolving these issues. The book begins with an overview of methods and strategies for statistical data editing and imputation. Subsequent chapters provide detailed treatment of the central theoretical methods and modern applications, with topics of coverage including: Localization of errors in continuous data, with an outline of selective editing strategies, automatic editing for systematic and random errors, and other relevant state-of-the-art methods Extensions of automatic editing to categorical data and integer data The basic framework for imputation, with a breakdown of key methods and models and a comparison of imputation with the weighting approach to correct for missing values More advanced imputation methods, including imputation under edit restraints Throughout the book, the treatment of each topic is presented in a uniform fashion. Following an introduction, each chapter presents the key theories and formulas underlying the topic and then illustrates common applications. The discussion concludes with a summary of the main concepts and a real-world example that incorporates realistic data along with professional insight into common challenges and best practices. Handbook of Statistical Data Editing and Imputation is an essential reference for survey researchers working in the fields of business, economics, government, and the social sciences who gather, analyze, and draw results from data. It is also a suitable supplement for courses on survey methods at the upper-undergraduate and graduate levels.

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Page Count

464

Publisher

John Wiley & Sons

Published Date

ISBN 10

0470542802

ISBN 13

9780470542804

Elements of Statistical Disclosure Control

By: Leon Willenborg,Ton de Waal

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Elements of Statistical Disclosure Control

By: Leon Willenborg,Ton de Waal

Statistical disclosure control is the discipline that deals with producing statistical data that are safe enough to be released to external researchers. This book concentrates on the methodology of the area. It deals with both microdata (individual data) and tabular (aggregated) data. The book attempts to develop the theory from what can be called the paradigm of statistical confidentiality: to modify unsafe data in such a way that safe (enough) data emerge, with minimum information loss. This book discusses what safe data, are, how information loss can be measured, and how to modify the data in a (near) optimal way. Once it has been decided how to measure safety and information loss, the production of safe data from unsafe data is often a matter of solving an optimization problem. Several such problems are discussed in the book, and most of them turn out to be hard problems that can be solved only approximately. The authors present new results that have not been published before. The book is not a description of an area that is closed, but, on the contrary, one that still has many spots awaiting to be more fully explored. Some of these are indicated in the book. The book will be useful for official, social and medical statisticians and others who are involved in releasing personal or business data for statistical use. Operations researchers may be interested in the optimization problems involved, particularly for the challenges they present. Leon Willenborg has worked at the Department of Statistical Methods at Statistics Netherlands since 1983, first as a researcher and since 1989 as a senior researcher. Since 1989 his main field of research and consultancy has been statistical disclosure control. From 1996-1998 he was the project coordinator of the EU co-funded SDC project.

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Page Count

273

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1461301211

ISBN 13

9781461301219

Statistical Disclosure Control in Practice

By: Leon Willenborg,Ton de Waal

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Statistical Disclosure Control in Practice

By: Leon Willenborg,Ton de Waal

The aim of this book is to discuss various aspects associated with disseminating personal or business data collected in censuses or surveys or copied from administrative sources. The problem is to present the data in such a form that they are useful for statistical research and to provide sufficient protection for the individuals or businesses to whom the data refer. The major part of this book is concerned with how to define the disclosure problem and how to deal with it in practical circumstances.

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Page Count

164

Publisher

Springer Science & Business Media

Published Date

ISBN 10

146124028X

ISBN 13

9781461240280

Gods, Temples, and Ritual Practices

The Transformation of Religious Ideas and Values in Roman Gaul

By: Ton Derks

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Gods, Temples, and Ritual Practices

The Transformation of Religious Ideas and Values in Roman Gaul

By: Ton Derks

Bevölkerungsgeschichte - Gallien - Siedlungsgeschichte - Tempel - Ritus - Religion - Götter.

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Page Count

356

Publisher

Amsterdam University Press

Published Date

ISBN 10

9053562540

ISBN 13

9789053562543

The Action for Damages in Community Law

By: Ton Heukels,Alison McDonnell,Europa instituut (Leyde, Pays-Bas),T.M.C. Asser Instituut

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The Action for Damages in Community Law

By: Ton Heukels,Alison McDonnell,Europa instituut (Leyde, Pays-Bas),T.M.C. Asser Instituut

Examining EC provisions for dealing effectively with the need to compensate individuals for wrongful acts, this volume covers topics ranging from non-contractual liability of the Community for different kinds of legal act, to questions of damages and the Community's contractual liability.

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Page Count

476

Publisher

Kluwer Law International B.V.

Published Date

ISBN 10

9041103708

ISBN 13

9789041103703

Across Boundaries

A life in the media in a time of change

By: Ton Vosloo

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Across Boundaries

A life in the media in a time of change

By: Ton Vosloo

Ton Vosloo's remarkable career in the media spanned nearly 60 years in South Africa's history. During this turbulent time, South Africa went through the transition from Afrikaner Nationalist rule to an ANC government. At the helm of the leading press group founded in 1913 to support nascent Afrikaner nationalism, Vosloo's story is not just one of newspapers and politics but also one of singular business and commercial success as the Naspers Group evolved from a print group to an electronic company with significant investments across the world. In 1983 Vosloo was appointed managing director of Naspers and set about vigorously transforming the group. On the ideological front, it was a fight to the death with the old Transvaal's predominantly right-wing Perskor Group for the soul of the Afrikaner. On the commercial front, Vosloo established the pay television network M-Net. In 1992, Vosloo became chairman of Naspers with Koos Bekker succeeding him as CEO. The story of Naspers' successes in investing in Chinese internet company Tencent and in establishing a footprint in 130 countries is a continuing one, but one begun under Vosloo's stewardship. In Across Boundaries, Vosloo gives his account of these momentous times with wry humour and a journalist's deft pen.

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Page Count

369

Publisher

Jonathan Ball Publishers

Published Date

ISBN 10

1868428893

ISBN 13

9781868428892

Aquatic Oligochaeta of the Netherlands and Belgium

Identification Key to the Oligochaetes

By: Ton van Haaren,Jan Soors

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Aquatic Oligochaeta of the Netherlands and Belgium

Identification Key to the Oligochaetes

By: Ton van Haaren,Jan Soors

Bristle worms, or oligochaetes, are a large and diverse group of invertebrates. Most oligochaetes living in this region live in fresh or brackish water: no fewer than 136 species in total. They play an important ecological role thereby giving much information about the condition of the ecosystem. This important, bulky book is the first reference work on the freshwater and brackish water polychaetes in the Netherlands, Belgium and Germany. It offers a wealth of ecological and taxonomic background information. Includes a new user determination key. The key is based on characteristics that are relatively easy to distinguish, without specialized equipment. • a comprehensive overview on morphology, collecting and preservation, identification and ecology • 136 species including the oligochaete fauna of Germany • a new, practical key for the identification based on characteristics that are relatively easy to distinguish • many photographs and schematic drawings • backgroundinformation on ecology and distribution An unique tool for aquatic ecologists and water quality management.

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Page Count

302

Publisher

BRILL

Published Date

ISBN 10

9004278095

ISBN 13

9789004278097

Handbook of Statistical Data Editing and Imputation

By: Ton de Waal,Jeroen Pannekoek,Sander Scholtus

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Handbook of Statistical Data Editing and Imputation

By: Ton de Waal,Jeroen Pannekoek,Sander Scholtus

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Page Count

453

Publisher

John Wiley & Sons

Published Date

ISBN 10

0470904836

ISBN 13

9780470904831

Book's by Ton de Waal

Handbook of Statistical Data Editing and Imputation

Handbook of Statistical Data Editing and Imputation

Elements of Statistical Disclosure Control

Elements of Statistical Disclosure Control

Statistical Disclosure Control in Practice

Statistical Disclosure Control in Practice

Gods, Temples, and Ritual Practices

Gods, Temples, and Ritual Practices

The Action for Damages in Community Law

The Action for Damages in Community Law

Across Boundaries

Across Boundaries

Aquatic Oligochaeta of the Netherlands and Belgium

Aquatic Oligochaeta of the Netherlands and Belgium

Handbook of Statistical Data Editing and Imputation

Handbook of Statistical Data Editing and Imputation

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