Karl Pearson

Author: Theodore M. Porter

Publisher: Princeton University Press

ISBN: 9781400835706

Category: Science

Page: 352

View: 188

Karl Pearson, founder of modern statistics, came to this field by way of passionate early studies of philosophy and cultural history as well as ether physics and graphical geometry. His faith in science grew out of a deeply moral quest, reflected also in his socialism and his efforts to find a new basis for relations between men and women. This biography recounts Pearson's extraordinary intellectual adventure and sheds new light on the inner life of science. Theodore Porter's intensely personal portrait of Pearson extends from religious crisis and sexual tensions to metaphysical and even mathematical anxieties. Pearson sought to reconcile reason with enthusiasm and to achieve the impersonal perspective of science without sacrificing complex individuality. Even as he longed to experience nature directly and intimately, he identified science with renunciation and positivistic detachment. Porter finds a turning point in Pearson's career, where his humanistic interests gave way to statistical ones, in his Grammar of Science (1892), in which he attempted to establish scientific method as the moral educational basis for a refashioned culture. In this original and engaging book, a leading historian of modern science investigates the interior experience of one man's scientific life while placing it in a rich tapestry of social, political, and intellectual movements.
Finite Mixture Models

Author: Geoffrey McLachlan

Publisher: John Wiley & Sons

ISBN: 9780471654063

Category: Mathematics

Page: 419

View: 985

An up-to-date, comprehensive account of major issues in finitemixture modeling This volume provides an up-to-date account of the theory andapplications of modeling via finite mixture distributions. With anemphasis on the applications of mixture models in both mainstreamanalysis and other areas such as unsupervised pattern recognition,speech recognition, and medical imaging, the book describes theformulations of the finite mixture approach, details itsmethodology, discusses aspects of its implementation, andillustrates its application in many common statisticalcontexts. Major issues discussed in this book include identifiabilityproblems, actual fitting of finite mixtures through use of the EMalgorithm, properties of the maximum likelihood estimators soobtained, assessment of the number of components to be used in themixture, and the applicability of asymptotic theory in providing abasis for the solutions to some of these problems. The author alsoconsiders how the EM algorithm can be scaled to handle the fittingof mixture models to very large databases, as in data miningapplications. This comprehensive, practical guide: * Provides more than 800 references-40% published since 1995 * Includes an appendix listing available mixture software * Links statistical literature with machine learning and patternrecognition literature * Contains more than 100 helpful graphs, charts, and tables Finite Mixture Models is an important resource for both applied andtheoretical statisticians as well as for researchers in the manyareas in which finite mixture models can be used to analyze data.
The Spirit of Inquiry

Author: Susannah Gibson

Publisher: Oxford University Press

ISBN: 9780192569875

Category: Science

Page: 320

View: 314

Cambridge is now world-famous as a centre of science, but it wasn't always so. Before the nineteenth century, the sciences were of little importance in the University of Cambridge. But that began to change in 1819 when two young Cambridge fellows took a geological fieldtrip to the Isle of Wight. Adam Sedgwick and John Stevens Henslow spent their days there exploring, unearthing dazzling fossils, dreaming up elaborate theories about the formation of the earth, and bemoaning the lack of serious science in their ancient university. As they threw themselves into the exciting new science of geology - conjuring millions of years of history from the evidence they found in the island's rocks - they also began to dream of a new scientific society for Cambridge. This society would bring together like-minded young men who wished to learn of the latest science from overseas, and would encourage original research in Cambridge. It would be, they wrote, a society "to keep alive the spirit of inquiry". Their vision was realised when they founded the Cambridge Philosophical Society later that same year. Its founders could not have imagined the impact the Cambridge Philosophical Society would have: it was responsible for the first publication of Charles Darwin's scientific writings, and hosted some of the most heated debates about evolutionary theory in the nineteenth century; it saw the first announcement of x-ray diffraction by a young Lawrence Bragg - a technique that would revolutionise the physical, chemical and life sciences; it published the first paper by C.T.R. Wilson on his cloud chamber - a device that opened up a previously-unimaginable world of sub-atomic particles. 200 years on from the Society's foundation, this book reflects on the achievements of Sedgwick, Henslow, their peers, and their successors. Susannah Gibson explains how Cambridge moved from what Sedgwick saw as a "death-like stagnation" (really little more than a provincial training school for Church of England clergy) to being a world-leader in the sciences. And she shows how science, once a peripheral activity undertaken for interest by a small number of wealthy gentlemen, has transformed into an enormously well-funded activity that can affect every aspect of our lives.

Author: Richard S. Levy

Publisher: ABC-CLIO

ISBN: 9781851094394

Category: History

Page: 828

View: 460

Written by top scholars in an accessible manner, this unique encyclopedia offers worldwide coverage of the origins, forms, practitioners, and effects of antisemitism, leading to the Holocaust and surviving to the present day. * 650 A-Z entries by over 200 scholars from 21 countries * Illustrations such as caricatures, political cartoons, maps, and pictures of famous antisemites and historical episodes * Citations of recent literature that follow each entry * Detailed index listing people, places, concepts, and events that enables users to find information about subjects not treated in dedicated articles * Direction at the end of each entry to other articles with special relevance to the topic
Text Book of Correlations and Regression

Author: A.K. Sharma

Publisher: Discovery Publishing House

ISBN: 8171419356

Category: Correlation (Statistics)

Page: 220

View: 213

This book Correlation and Regression is an outcome of authors long teaching experience of the subject. This book present a thorough treatment of what is required for the students of B.A/B.Sc., of all Indian Universities. It includes fundamental concepts, illustrated examples and application to various problems. These illustrative examples have been selected carefully on such topic and sufficient number of unsolved questions are provided which aims at sharpening the skill of students. Contents: Correlation Analysis, Regression Analysis, Partial and Multiple Correlation.
City of Dreadful Delight

Author: Judith R. Walkowitz

Publisher: University of Chicago Press

ISBN: 0226871460

Category: History

Page: 388

View: 747

From tabloid exposes of child prostitution to the grisly tales of Jack the Ripper, narratives of sexual danger pulsated through Victorian London. Expertly blending social history and cultural criticism, Judith Walkowitz shows how these narratives reveal the complex dramas of power, politics, and sexuality that were being played out in late nineteenth-century Britain, and how they influenced the language of politics, journalism, and fiction. Victorian London was a world where long-standing traditions of class and gender were challenged by a range of public spectacles, mass media scandals, new commercial spaces, and a proliferation of new sexual categories and identities. In the midst of this changing culture, women of many classes challenged the traditional privileges of elite males and asserted their presence in the public domain. An important catalyst in this conflict, argues Walkowitz, was W. T. Stead's widely read 1885 article about child prostitution. Capitalizing on the uproar caused by the piece and the volatile political climate of the time, women spoke of sexual danger, articulating their own grievances against men, inserting themselves into the public discussion of sex to an unprecedented extent, and gaining new entree to public spaces and journalistic practices. The ultimate manifestation of class anxiety and gender antagonism came in 1888 with the tabloid tales of Jack the Ripper. In between, there were quotidien stories of sexual possibility and urban adventure, and Walkowitz examines them all, showing how women were not simply figures in the imaginary landscape of male spectators, but also central actors in the stories of metropolotin life that reverberated in courtrooms, learned journals, drawing rooms, street corners, and in the letters columns of the daily press. A model of cultural history, this ambitious book will stimulate and enlighten readers across a broad range of interests.
Business Statistics by Dr. V. C. Sinha, Dr. Alok Gupta, Dr. Jitendra Kumar Saxena (SBPD Publications)

Author: Dr. V. C. Sinha

Publisher: SBPD Publications


Category: Business & Economics

Page: 466

View: 409

An excellent book for commerce students appearing in competitive, professional and other examinations. Business Statistics 1.Statistics : Concept, Nature and Limitations, 2.Statistics : Scope and Significance, 3.Types and Collection of Data, 4. Classification and Tabulation of Data, 5. Frequency Distribution, 6. Graphic Presentation of Data, 7. Measures of Central Tendency (Mean, Median, Mode), 8. Measures of Variation or Dispersion (Rang, Q. D., M. D. & S. D.), 9. Measures of Skewness, 10. Measures of Kurtosis, 11. Correlation, 12. Regression Analysis, 13. Probability Theory, 14. Probability Distributions (Binomial, Poisson and Normal), 15. Sampling Theory and Tests of Significance. 16. Appendix. SYLLABUS Unit I : Statistics : Concept, Significance & Limitation, Type of Data, Classification & Tabulation, Frequency Distribution & Graphical Representation. Unit II : Measures of Central Tendency (Mean, Median, Mode), Measures of Variation : Significance & Properties of a Good Measure of Variation : Range, Quartile Deviation, Mean Deviation and Standard Deviation, Measures of Skewness & Kurtosis. Unit III :Correlation : Significance of Correlation, Types of correlation, Simple Correlation, Scatter Diagram Method, Karl Pearson Coefficient of Correlation. Regression : Introduction, Regression Lines, Regression Equation & Regression Coefficient. Unit IV :Probability : Concept, Events, Addition Law, Conditional Probability, Multiplication Law & Baye’s Theorem [Simple Numerical], Probability Distribution : Binomial, Poisson and Normal. Unit V : Sampling Method of Sampling, Sampling and Non-Sampling Errors. Test of Hypothesis, Type-I and Type-II Errors, Large Sample Tests.