With this practical book, you'll explore text-mining techniques with tidytext, a package that authors Julia Silge and David Robinson developed using the tidy principles behind R packages like ggraph and dplyr. You'll learn how tidytext and other tidy tools in R can make text analysis easier and more effective.The authors demonstrate how treating text as data frames enables you to manipulate, summarize, and visualize characteristics of text. You'll also learn how to integrate natural language processing (NLP) into effective workflows. Practical code examples and data explorations will help you generate real insights from literature, news, and social media.Learn how to apply the tidy text format to NLPUse sentiment analysis to mine the emotional content of textIdentify a document's most important terms with frequency measurementsExplore relationships and connections between words with the ggraph and widyr packagesConvert back and forth between R's tidy and non-tidy text formatsUse topic modeling to classify document collections into natural groupsExamine case studies that compare Twitter archives, dig into NASA metadata, and analyze thousands of Usenet messages

    Written from a computer science perspective by three leading experts in the field, it gives an up-to-date treatment of all aspects of the design and implementation of systems for gathering, indexing, and searching documents; methods for evaluating systems; and an introduction to the use of machine learning methods on text collections. All the important ideas are explained using examples and figures, making it perfect for introductory courses in information retrieval for advanced undergraduates and graduate students in computer science. Based on feedback from extensive classroom experience, the book has been carefully structured in order to make teaching more natural and effective. Although originally designed as the primary text for a graduate or advanced undergraduate course in information retrieval, the book will also create a buzz for researchers and professionals alike.

    Cathy's worst fears had been realised...Through a Mother’s Tears is the poignant and heartbreaking story of how Cathy lost not only Kirsty, her youngest daughter, but Kirsty’s big sister Hayley, who died of heartbreak when the agony of her baby sister’s loss became too much to bear.

    Industry experts Jacqueline Nolis and Emily Robinson lay out the soft skills you’ll need alongside your technical know-how in order to succeed in the field. Following their clear and simple instructions you’ll craft a resume that hiring managers will love, learn how to ace your interview, and ensure you hit the ground running in your first months at your new job. Once you’ve gotten your foot in the door, learn to thrive as a data scientist by handling high expectations, dealing with stakeholders, and managing failures. Finally, you’ll look towards the future and learn about how to join the broader data science community, leaving a job gracefully, and plotting your career path. With this book by your side you’ll have everything you need to ensure a rewarding and productive role in data science.

    Using sample charts, graphics, case studies, and war stories, Yankee Group Security Expert Andrew Jaquith demonstrates exactly how to establish effective metrics based on your organization's unique requirements. You'll discover how to quantify hard-to-measure security activities, compile and analyze all relevant data, identify strengths and weaknesses, set cost-effective priorities for improvement, and craft compelling messages for senior management. Security Metrics successfully bridges management's quantitative viewpoint with the nuts-and-bolts approach typically taken by security professionals. It brings together expert solutions drawn from Jaquith's extensive consulting work in the software, aerospace, and financial services industries, including new metrics presented nowhere else. You'll learn how to: - Replace nonstop crisis response with a systematic approach to security improvement - Understand the differences between "good" and "bad" metrics - Measure coverage and control, vulnerability management, password quality, patch latency, benchmark scoring, and business-adjusted risk - Quantify the effectiveness of security acquisition, implementation, and other program activities - Organize, aggregate, and analyze your data to bring out key insights - Use visualization to understand and communicate security issues more clearly - Capture valuable data from firewalls and antivirus logs, third-party auditor reports, and other resources - Implement balanced scorecards that present compact, holistic views of organizational security effectiveness Whether you're an engineer or consultant responsible for security and reporting to management-or an executive who needs better information for decision-making-Security Metrics is the resource you have been searching for. Andrew Jaquith, program manager for Yankee Group's Security Solutions and Services Decision Service, advises enterprise clients on prioritizing and managing security resources. He also helps security vendors develop product, service, and go-to-market strategies for reaching enterprise customers. He co-founded @stake, Inc., a security consulting pioneer acquired by Symantec Corporation in 2004. His application security and metrics research has been featured in CIO, CSO, InformationWeek, IEEE Security and Privacy, and The Economist. Foreword Preface Acknowledgments About the Author Chapter 1 Introduction: Escaping the Hamster Wheel of Pain Chapter 2 Defining Security Metrics Chapter 3 Diagnosing Problems and Measuring Technical Security Chapter 4 Measuring Program Effectiveness Chapter 5 Analysis Techniques Chapter 6 Visualization Chapter 7 Automating Metrics Calculations Chapter 8 Designing Security Scorecards Index

     Data Structures and Algorithms in Python is the first mainstream object-oriented book available for the Python data structures course. Designed to provide a comprehensive introduction to data structures and algorithms, including their design, analysis, and implementation, the text will maintain the same general structure as Data Structures and Algorithms in Java and Data Structures and Algorithms in C++.

    This second edition of a bestselling guide to landing page optimization includes case studies with before-and-after results as well as new information on web site usability. It covers how to prepare all types of content for testing, how to interpret results, recognize the seven common design mistakes, and much more. Included is a gift card for Google AdWords. Features fully updated information and case studies on landing page optimization Shows how to use Google's Website Optimizer tool, what to test and how to prepare your site for testing, the pros and cons of different test strategies, how to interpret results, and common site design mistakes Provides a step-by-step implementation plan and advice on getting support and resources Includes a Google AdWords gift card Landing Page Optimization, Second Edition is a comprehensive guide to increasing conversions and improving profits.

    Every complete program uses a consistent style, and as programs are analyzed, styles and standards are further explained. Whenever possible, the authors develop the principle of a subject before they introduce the language implementation so the student understands the concept before dealing with the nuances of C++. In addition, a vast array of figures and tables visually reinforce key concepts. By integrating software engineering principles and encouraging the student to resist the temptation to immediately code, the text builds a solid foundation in problem solving.

    Success key books for: Programming puzzles for interviews Campus Preparation Degree/Masters Course Preparation Instructor's GATE Preparation Big job hunters: Microsoft, Google, Amazon, Yahoo, Flip Kart, Adobe, IBM Labs, Citrix, Mentor Graphics, NetApp, Oracle, Webaroo, De-Shaw, Success Factors, Face book, McAfee and many more Reference Manual for working people

    Though everyone from talk show hosts to politicians mouths these platitudes, and self-help bibles are a dime a dozen, their advice simply hasn't't helped us live happier or more satisfying lives. Pearsall cites scientific evidence to challenge what he calls the McMorals of self-potentialism: the unsubstantiated prescriptions, programs, guarantees, and gurus that define our pursuit of The Good Life. His message is timely: we're fed up with truisms masquerading as truth, and hungry for self-help that really helps. Filled with groundbreaking research and inspiring true stories from Dr. Pearsall's clinical practice, The Last Self-Help Book You'll Ever Need offers a powerful antidote to the mindless mental languishing that characterizes so much of modern life. The solution is not just to "get tough and suck it up." Instead, Pearsall offers powerful if counterintuitive strategies. By abandoning the mandate to "stay hopeful," for example, we can begin to savor today rather than focus desperately on tomorrow. By allowing ourselves the natural process of grieving instead of relentlessly treating grief as a disease, we can recover from tragedy. With Pearsall's lively and informative roadmap to psychological health, we can say "goodbye" to our inner child and "hello" to a better life.

    Ware's updated review of empirical research and interface design examples will do much to accelerate innovation and adoption of information visualization." —Ben Shneiderman, University of Maryland"Colin Ware is the perfect person to write this book, with a long history of prominent contributions to the visual interaction with machines and to information visualization directly. It goes a long way towards joining science to the practical design of information visualization systems." —from the foreword by Stuart Card, PARCMost designers know that yellow text presented against a blue background reads clearly and easily, but how many can explain why, and what really are the best ways to help others and ourselves clearly see key patterns in a bunch of data? When we use software, access a web site, or view graphics, our understanding is greatly enhanced or impeded by the way information is presented. By explaining in detail how we think visually, this book provides guidance on how to construct effective interactive information displays.This book combines a strictly scientific approach to human perception with a practical concern for the rules governing the effective visual presentation of information. Surveying the research of leading psychologists and neurophysiologists, author Colin Ware isolates key principles at work in vision and perception, and from them derives specific and effective visualization techniques suitable for a wide range of scenarios. Information Visualization offers practical guidelines that can be applied by anyone, and covers all facets of visual perception: color, organization, space perception, motion, and texture.* Major revision of this classic work, with a new chapter on visual thinking, new sections on face perception and flow visualization, an appendix on how to evaluate visualizations,and a greatly expanded chapter on color and color sequences. *New to this edition is the full-color treatment throughout, to better display over 400 illustrations.*From a leading researcher in the field of human perception who has brought together, in a single resource, all current scientific insight into the question of data visualization.

    This well-written book is grounded in the reality of teaching today to show real-world teachers who want to use assessment in their classroom the latest tools necessary to teach more effectively. The fifth edition of Classroom Assessment addresses the range of assessments that teachers are likely to use in their classrooms. With expanded coverage of problems related to measurement of special education children, a new student website with online activities, and an improved instructor's manual, this book continues to be a cutting-edge and indispensable resource not only for instructors, but also for pre- and in-service teachers. New to This Edition: *Chapter 12 contains new material dealing with formative assessment as well as assessment FOR learning. *The text is committed to fostering readers' realizations regarding the critical link between testing and teaching. Instructional implications are constantly stressed in the text. early childhood assessment throughout the text. *The 5th edition contains a brand-new website providing readers with Extra Electronic Exercises for each chapter, so readers, if they wish, can solidify their understanding of what chapters address (go to www.ablongman.com/popham5e). *A newly revised Instructor's Resource Manual contains Instructor-to-Instructor suggestions as well as a test for each chapter. It also includes a mid-term and final exam and an effective inventory measuring students' confidence in assessment. Here's what your colleagues have to say about this book: Dr. Popham has done a tremendous job in researching and incorporating current trends throughout the entire text! Terry H. Stepka, Arkansas State University Overall, I am extremely satisfied with the text. It is well-written, and I love the author's sense of humor! Terry H. Stepka, Arkansas State University I LOVE the arrangement of the chapters and the high quality of the self-checks and discussion questions that are provided. Karen E. Eifler, University of Portland

    You'll get up to speed quickly with this straight forward guide, full of practical step-by-step visual instructions. Full color screen shots help you learn visually and quickly become productive. <br><br>From the best selling author of the Top 100 Tips for iPad.

    It combines stories that are fictional, with technology that is real. While none of the stories have happened, there is no reason why they could not. You could argue it provides a road map for criminal hackers, but I say it does something else: it provides a glimpse into the creative minds of some of today's best hackers, and even the best hackers will tell you that the game is a mental one' - from the Foreword to the first "Stealing the Network" book, "How to Own the Box", Jeff Moss, Founder & Director, Black Hat, Inc. and Founder of DEFCON. For the very first time, the complete "Stealing the Network" epic is available in an enormous, over 1000 page volume complete with the final chapter of the saga and a DVD filled with behind the scenes video footage! These groundbreaking books created a fictional world of hacker superheroes and villains based on real world technology, tools, and tactics. It is almost as if the authors peered into the future as many of the techniques and scenarios in these books have come to pass. This book contains all of the material from each of the four books in the "Stealing the Network" series. All of the stories and tech from: "How to Own the Box"; "How to Own a Continent"; "How to Own an Identity"; and, "How to Own a Shadow". Plus: finally - find out how the story ends! The final chapter is here! There is a DVD full of behind the scenes stories and insider info about the making of these cult classics! Now for the first time the entire series is one 1000 plus page book. The DVD contains 20 minutes of behind the scenes footage. Readers will finally learn the fate of 'Knuth' in the much anticipated final chapter.

    New languages, new frameworks, new ways of doing things - a constant struggle just to stay current in the industry. This left no time to learn the foundational concepts and skills that come with a degree in Computer Science.