introducing survival and event history analysis

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Introducing Survival And Event History Analysis

Author : Melinda Mills
ISBN : 9781848601024
Genre : Social Science
File Size : 52. 82 MB
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This book is an accessible, practical and comprehensive guide for researchers from multiple disciplines including biomedical, epidemiology, engineering and the social sciences. Written for accessibility, this book will appeal to students and researchers who want to understand the basics of survival and event history analysis and apply these methods without getting entangled in mathematical and theoretical technicalities. Inside, readers are offered a blueprint for their entire research project from data preparation to model selection and diagnostics. Engaging, easy to read, functional and packed with enlightening examples, ‘hands-on’ exercises, conversations with key scholars and resources for both students and instructors, this text allows researchers to quickly master advanced statistical techniques. It is written from the perspective of the ‘user’, making it suitable as both a self-learning tool and graduate-level textbook. Also included are up-to-date innovations in the field, including advancements in the assessment of model fit, unobserved heterogeneity, recurrent events and multilevel event history models. Practical instructions are also included for using the statistical programs of R, STATA and SPSS, enabling readers to replicate the examples described in the text.

Group Processes

Author : Andrew Pilny
ISBN : 9783319489414
Genre : Computers
File Size : 84. 15 MB
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This volume introduces a series of different data-driven computational methods for analyzing group processes through didactic and tutorial-based examples. Group processes are of central importance to many sectors of society, including government, the military, health care, and corporations. Computational methods are better suited to handle (potentially huge) group process data than traditional methodologies because of their more flexible assumptions and capability to handle real-time trace data. Indeed, the use of methods under the name of computational social science have exploded over the years. However, attention has been focused on original research rather than pedagogy, leaving those interested in obtaining computational skills lacking a much needed resource. Although the methods here can be applied to wider areas of social science, they are specifically tailored to group process research. A number of data-driven methods adapted to group process research are demonstrated in this current volume. These include text mining, relational event modeling, social simulation, machine learning, social sequence analysis, and response surface analysis. In order to take advantage of these new opportunities, this book provides clear examples (e.g., providing code) of group processes in various contexts, setting guidelines and best practices for future work to build upon. This volume will be of great benefit to those willing to learn computational methods. These include academics like graduate students and faculty, multidisciplinary professionals and researchers working on organization and management science, and consultants for various types of organizations and groups.

Missing And Modified Data In Nonparametric Estimation

Author : Sam Efromovich
ISBN : 9781351679831
Genre : Mathematics
File Size : 23. 4 MB
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This book presents a systematic and unified approach for modern nonparametric treatment of missing and modified data via examples of density and hazard rate estimation, nonparametric regression, filtering signals, and time series analysis. All basic types of missing at random and not at random, biasing, truncation, censoring, and measurement errors are discussed, and their treatment is explained. Ten chapters of the book cover basic cases of direct data, biased data, nondestructive and destructive missing, survival data modified by truncation and censoring, missing survival data, stationary and nonstationary time series and processes, and ill-posed modifications. The coverage is suitable for self-study or a one-semester course for graduate students with a prerequisite of a standard course in introductory probability. Exercises of various levels of difficulty will be helpful for the instructor and self-study. The book is primarily about practically important small samples. It explains when consistent estimation is possible, and why in some cases missing data should be ignored and why others must be considered. If missing or data modification makes consistent estimation impossible, then the author explains what type of action is needed to restore the lost information. The book contains more than a hundred figures with simulated data that explain virtually every setting, claim, and development. The companion R software package allows the reader to verify, reproduce and modify every simulation and used estimators. This makes the material fully transparent and allows one to study it interactively. Sam Efromovich is the Endowed Professor of Mathematical Sciences and the Head of the Actuarial Program at the University of Texas at Dallas. He is well known for his work on the theory and application of nonparametric curve estimation and is the author of Nonparametric Curve Estimation: Methods, Theory, and Applications. Professor Sam Efromovich is a Fellow of the Institute of Mathematical Statistics and the American Statistical Association.

Survival And Event History Analysis

Author : Odd Aalen
ISBN : 9780387685601
Genre : Mathematics
File Size : 49. 61 MB
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The aim of this book is to bridge the gap between standard textbook models and a range of models where the dynamic structure of the data manifests itself fully. The common denominator of such models is stochastic processes. The authors show how counting processes, martingales, and stochastic integrals fit very nicely with censored data. Beginning with standard analyses such as Kaplan-Meier plots and Cox regression, the presentation progresses to the additive hazard model and recurrent event data. Stochastic processes are also used as natural models for individual frailty; they allow sensible interpretations of a number of surprising artifacts seen in population data. The stochastic process framework is naturally connected to causality. The authors show how dynamic path analyses can incorporate many modern causality ideas in a framework that takes the time aspect seriously. To make the material accessible to the reader, a large number of practical examples, mainly from medicine, are developed in detail. Stochastic processes are introduced in an intuitive and non-technical manner. The book is aimed at investigators who use event history methods and want a better understanding of the statistical concepts. It is suitable as a textbook for graduate courses in statistics and biostatistics.

Author : نيقولو مكيافيلي
ISBN : 9796500155098
Genre :
File Size : 53. 92 MB
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حدث ذات يوم أن أفادنى رجال فرق القمصان السوداء فى إيمولا بأن سيفا سيهدى إلي منقوشا عليها قول مكيافيللى «ليست المحافظة على الدول بالكلام» وكان أن وضع حد لترددى وتحدد اختيار موضوع الرسالة الذى أقدمه اليوم لتقترعوا عليه. وبإمكانى تسميته «تعليق عام 1924 على كتاب الأمير لمكيافيللى» . وذلك الكتاب الذى أود أن أطلق عليه «ملازم رجل الحكم» يقتضى للأمانة الفكرية أن أذكر أن مراجع رسالتى هذه قليلة، كما سنرى فيما بعد. لقد قرأت كتاب «الأمير» وغيره من مؤلفات ذلك (الأمين العظيم) قراءة واعية ولكن الوقت والإرادة حالا دون أن أقرأ جميع ما كتب عن مكيافيللى فى إيطاليا وفى العالم. وأردت أن أضع بينى وبينه أقل عدد من الوسطاء القدامى أو المحدثين، الإيطاليين والأجانب، كى لا أفسد عملية الاتصال المباشر بين مذهبه وحياتى التى عشتها وبين ما لاحظ ولاحظت عن البشر والأشياء وبين ممارسته للحكم وممارستى.

Methods And Applications Of Statistics In The Life And Health Sciences

Author : N. Balakrishnan
ISBN : 9780470405093
Genre : Mathematics
File Size : 69. 40 MB
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"Data collection holds an essential part in dictating the future of health sciences and public health, as the compilation of statistics allows researchers and medical practitioners to monitor trends in health status, identify health problems, and evaluate the impact of health policies and programs. Methods and Applications of Statistics in the Life and Health Sciences serves as a single, one-of-a-kind resource on the wide range of statistical methods, techniques, and applications that are applied in modern life and health sciences in research. Specially designed to present encyclopedic content in an accessible and self-contained format, this book outlines thorough coverage of the underlying theory and standard applications to research in related disciplines such as biology, epidemiology, clinical trials, and public health. Uniquely combining established literature with cutting-edge research, this book contains classical works and more than twenty-five new articles and completely revised contributions from the acclaimed Encyclopedia of Statistical Sciences, Second Edition. The result is a compilation of more than eighty articles that explores classic methodology and new topics."--Publisher's description.

Author : Robert B. Cialdini
ISBN : 9789960547466
Genre : Business & Economics
File Size : 54. 30 MB
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التأثير, الكتاب الكلاسيكي حول عملية الإقناع, يشرح مبادئ علم النفس التي تقف وراء قول الناس «نعم» لأي طلب كان, كما يشرح كيفية تطبيق فهم هذه المبادئ. الدكتور روبرت سيالديني مدرّس خبير في حقلي التأثير والإقناع المتناميين بسرعة. إن هذا الكتاب الذي ينظر إليه في الأوساط العلمية نظرة مرموقة جداً؛ فهو حصيلة خمس وثلاثين سنة من الأبحاث الدقيقة المعتمدة على الأدلة القوية، إضافة إلى برنامج استمر ثلاث سنوات من الدراسة الميدانية لما يدفع الناس إلى تغيير سلوكهم. سوف نتعلم المبادئ الستة الأساسية, وكيف نستعملها كي نصبح مهرة في فن الإقناع- وكيف ندافع عن أنفسنا ضد من يحاول أن يستغلنا بإقناعنا بما يريد. هذا الكتاب مثالي لجميع الناس العاملين في جميع نواحي الحياة. سوف تغيّر مبادئ التأثيرشخصيتك تغييراً إيجابياً قوياً وتقودك نحو النجاح. العبيكان للنشر

Author : جاك لندن
ISBN :
Genre : Literary Collections
File Size : 45. 9 MB
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ذئب البحر هي رواية مغامرة نفسية بقلم الروائي الأمريكي جاك لندن. تدور الرواية حول ناقد أدبي ينجو من تحطم سفينته في المحيط، ليتم إنقاذه ويقع تحت هيمنة وولف لارسن، وهو قبطان سفينة قوي وعديم الأخلاق. بيعت أربعين ألف نسخة في الطبعة الأولى فورا قبل نشرها بعد نجاح رواية لندن السابقة نداء البرية.

Author : توماس هوبز
ISBN : 9796500033068
Genre : Philosophy
File Size : 62. 65 MB
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إنّ كتاب اللوياثان الذي وضعه (سنة 1651)، من الكتب المؤسِّسة لنظرية الفلسفة، وهو يبتكر أسطورة السلطة المطلقة فيضع ركائز التقليد السياسي الحديث.. فقد قرّر البشر، استناداً إلى قُدرتهم الخاصّة على العزم والتفكير، أن يُزوّدوا أنفُسَهُم بقانون مُشترَك ومُصطَنَع، وعندها لم يعد القانون يرتكز على العالم الإلهي، بل على العالم الإنساني. واللفياثان هو كائن بحري خرافي له رأس تنين وجسد وأفعى ويرد ذكره مرات عدة في الكتاب المقدس، أما هوبز فيستعمله ليصور سلطة الحاكم أو الدولة التي يستبدل بها الناس ضمن عقد اجتماعي جديد سلطة الدين أو اللاهوت.

Author :
ISBN : 9782304224573
Genre :
File Size : 33. 76 MB
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