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An introduction to the theory and methods of robust statistics, providing students with practical methods for carrying out robust procedures in a variety of statistical contexts and explaining the advantages of these procedures. In addition, the text develops techniques and concepts likely to be useful in the future analysis of new statistical models and procedures. Emphasizing the concepts of breakdown point and influence functon of an estimator, it demonstrates the technique of expressing an estimator as a descriptive measure from which its influence function can be derived and then used to explore the efficiency and robustness properties of the estimator. Mathematical techniques are complemented by computational algorithms and Minitab macros for finding bootstrap and influence function estimates of standard errors of the estimators, robust confidence intervals, robust regression estimates and their standard errors. Includes examples and problems. Получить ссылку |
Testing SAP R/3
A Manager’s Step-by-Step Guide
Автор: JOSE FAJARDO, ELFRIEDE DUSTIN
Год издания:
Planning, preparing, scheduling, and executing SAP test cycles is a
time-consuming and resource-intensive endeavor that requires participation
from several project members. SAP projects are prone to
have informal, ad-hoc test approaches that decrease the stability of
the production environment and tend to increase the cost of ownership
for the SAP system. Many SAP project and test managers cannot
provide answers for questions such as how many requirements have
testing coverage, the exit criteria for a test phase, the audit trails for
test results, the dependencies and correct sequence for executing test
cases, or the cost figures for a previously executed test cycle. Fortunately,
through established testing techniques predicated on guidelines
and methodologies (i.e., ASAP SAP Roadmap methodology,
IBM’s Ascendant methodology, and Deloitte’s ThreadManager
methodology), enforcement of standards, application of objective
testing criteria, test case automation, implementation of a requirements
traceability matrix (RTM), and independent testing and formation
of centralized test teams, many of the testing risks that plague
existing or initial SAP programs can be significantly reduced.
This book is written for SAP managers, SAP consultants, SAP
testers, and team leaders who are tasked with supporting, managing,
implementing, and monitoring testing activities related to test planning,
test design, test automation, test tool management, execution of
test cases, reporting of test results, test outsourcing, planning a budget
for testing activities, enforcing testing standards, and resolving
defects.
Пакеты расширения Matlab. Control System Toolbox и Robust Control Toolbox
Автор: В. М. Перельмутер
Год издания:
В книге описаны пакеты расширения Control System Toolbox и Robust Control Toolbox системы MATLAB 7, предназначенные для анализа и синтеза систем управления. Коротко изложены основные теоретические положения, принятые при разработке указанных пакетов расширения. Приведены многочисленные примеры использования этих пакетов расширения для решения конкретных задач с подробным пояснением выполняемых операций. Показаны возможности совместного использования пакетов Control System Toolbox и Robust Control Toolbox с пакетом Simulink, что увеличивает возможности всех трех указанных пакетов расширения. Книга может быть использована студентами вузов соответствующих специальностей при курсовом и дипломном проектировании, инженерами и научными работниками при создании новых и исследованиях уже разработанных систем автоматического управления. Книга рассчитана как на начинающих, так и на достаточно опытных пользователей.
Internal Control Audit and Compliance. Documentation and Testing Under the New COSO Framework
Автор: Lynford Graham
Год издания:
Ease the transition to the new COSO framework with practical strategy Internal Control Audit and Compliance provides complete guidance toward the latest framework established by the Committee of Sponsoring Organizations (COSO). With clear explanations and expert advice on implementation, this helpful guide shows auditors and accounting managers how to document and test internal controls over financial reporting with detailed sections covering each element of the framework. Each section highlights the latest changes and new points of emphasis, with explicit definitions of internal controls and how they should be assessed and tested. Coverage includes easing the transition from older guidelines, with step-by-step instructions for implementing the new changes. The new framework identifies seventeen new principles, each of which are explained in detail to help readers understand the new and emerging best practices for efficiency and effectiveness. The revised COSO framework includes financial and non-financial reporting, as well as both internal and external reporting objectives. It is essential for auditors and controllers to understand the new framework and how to document and test under the new guidance. This book clarifies complex codification and provides an effective strategy for a more rapid transition. Understand the new COSO internal controls framework Document and test internal controls to strengthen business processes Learn how requirements differ for public and non-public companies Incorporate improved risk management into the new framework The new framework is COSO's first complete revision since the release of the initial framework in 1992. Companies have become accustomed to the old guidelines, and the necessary procedures have become routine – making the transition to align with the new framework akin to steering an ocean liner. Internal Control Audit and Compliance helps ease that transition, with clear explanation and practical implementation guidance.
Penetration Testing Essentials
Автор: Sean-Philip Oriyano
Год издания:
Your pen testing career begins here, with a solid foundation in essential skills and concepts Penetration Testing Essentials provides a starting place for professionals and beginners looking to learn more about penetration testing for cybersecurity. Certification eligibility requires work experience—but before you get that experience, you need a basic understanding of the technical and behavioral ways attackers compromise security, and the tools and techniques you'll use to discover the weak spots before others do. You'll learn information gathering techniques, scanning and enumeration, how to target wireless networks, and much more as you build your pen tester skill set. You'll learn how to break in, look around, get out, and cover your tracks, all without ever being noticed. Pen testers are tremendously important to data security, so they need to be sharp and well-versed in technique, but they also need to work smarter than the average hacker. This book set you on the right path, with expert instruction from a veteran IT security expert with multiple security certifications. IT Security certifications have stringent requirements and demand a complex body of knowledge. This book lays the groundwork for any IT professional hoping to move into a cybersecurity career by developing a robust pen tester skill set. Learn the fundamentals of security and cryptography Master breaking, entering, and maintaining access to a system Escape and evade detection while covering your tracks Build your pen testing lab and the essential toolbox Start developing the tools and mindset you need to become experienced in pen testing today.
Robust Equity Portfolio Management. Formulations, Implementations, and Properties using MATLAB
Автор: Frank J. Fabozzi
Год издания:
A comprehensive portfolio optimization guide, with provided MATLAB code Robust Equity Portfolio Management + Website offers the most comprehensive coverage available in this burgeoning field. Beginning with the fundamentals before moving into advanced techniques, this book provides useful coverage for both beginners and advanced readers. MATLAB code is provided to allow readers of all levels to begin implementing robust models immediately, with detailed explanations and applications in the equity market included to help you grasp the real-world use of each technique. The discussion includes the most up-to-date thinking and cutting-edge methods, including a much-needed alternative to the traditional Markowitz mean-variance model. Unparalleled in depth and breadth, this book is an invaluable reference for all risk managers, portfolio managers, and analysts. Portfolio construction models originating from the standard Markowitz mean-variance model have a high input sensitivity that threatens optimization, spawning a flurry of research into new analytic techniques. This book covers the latest developments along with the basics, to give you a truly comprehensive understanding backed by a robust, practical skill set. Get up to speed on the latest developments in portfolio optimization Implement robust models using provided MATLAB code Learn advanced optimization methods with equity portfolio applications Understand the formulations, performances, and properties of robust portfolios The Markowitz mean-variance model remains the standard framework for portfolio optimization, but the interest in—and need for—an alternative is rapidly increasing. Resolving the sensitivity issue and dramatically reducing portfolio risk is a major focus of today's portfolio manager. Robust Equity Portfolio Management + Website provides a viable alternative framework, and the hard skills to implement any optimization method.
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