In this handbook, data expert Q. Ethan McCallum has gathered 19 colleagues from every corner of the data arena to reveal how they’ve recovered from nasty data problems.From cranky storage to poor representation to misguided policy, there are many paths to bad data. Bottom line? Bad data is data that gets in the way. This book explains effective ways to get around it.Among the many topics covered, you’ll discover how to:Test drive your data to see if it’s ready for analysisWork spreadsheet data into a usable formHandle encoding problems that lurk in text dataDevelop a successful web-scraping effortUse NLP tools to reveal the real sentiment of online reviewsAddress cloud computing issues that can impact your analysis effortAvoid policies that create data analysis roadblocksTake a systematic approach to data quality analysis

    Edited by the Sustainability Institute’s Diana Wright, this essential primer brings systems thinking out of the realm of computers and equations and into the tangible world, showing readers how to develop the systems-thinking skills that thought leaders across the globe consider critical for 21st-century life.Some of the biggest problems facing the world—war, hunger, poverty, and environmental degradation—are essentially system failures. They cannot be solved by fixing one piece in isolation from the others, because even seemingly minor details have enormous power to undermine the best efforts of too-narrow thinking.While readers will learn the conceptual tools and methods of systems thinking, the heart of the book is grander than methodology. Donella Meadows was known as much for nurturing positive outcomes as she was for delving into the science behind global dilemmas. She reminds readers to pay attention to what is important, not just what is quantifiable, to stay humble, and to stay a learner.In a world growing ever more complicated, crowded, and interdependent, Thinking in Systems helps readers avoid confusion and helplessness, the first step toward finding proactive and effective solutions.

    But for all the heat of claim and counter-claim, the argument is essentially beside the point: it’s here; it’s everywhere. The real question is, do we direct technology, or do we let ourselves be directed by it and those who have mastered it? “Choose the former,” writes Rushkoff, “and you gain access to the control panel of civilization. Choose the latter, and it could be the last real choice you get to make.” In ten chapters, composed of ten “commands” accompanied by original illustrations from comic artist Leland Purvis, Rushkoff provides cyberenthusiasts and technophobes alike with the guidelines to navigate this new universe.In this spirited, accessible poetics of new media, Rushkoff picks up where Marshall McLuhan left off, helping readers come to recognize programming as the new literacy of the digital age––and as a template through which to see beyond social conventions and power structures that have vexed us for centuries. This is a friendly little book with a big and actionable message. World-renowned media theorist and counterculture figure Douglas Rushkoff is the originator of ideas such as “viral media,” “social currency” and “screenagers.” He has been at the forefront of digital society from its beginning, correctly predicting the rise of the net, the dotcom boom and bust, as well as the current financial crisis. He is a familiar voice on NPR, face on PBS, and writer in publications from Discover Magazine to the New York Times.“Douglas Rushkoff is one of the great thinkers––and writers––of our time.” —Timothy Leary“Rushkoff is damn smart. As someone who understood the digital revolution faster and better than almost anyone, he shows how the internet is a social transformer that should change the way your business culture operates." —Walter Isaacson

    Combining tools, core principles, and plenty of humor, The Agile Samurai gives you the tools and the attitude to deliver something of value every week, and make rolling software into production a non-event. You’ll see how agile software delivery really works and how to help your team get agile fast, while having fun along the way.

    It’s time we stand face-to-digital-face with the true powers and limitations of the algorithms that already automate important decisions in healthcare, transportation, crime, and commerce. Hello World is indispensable preparation for the moral quandaries of a world run by code, and with the unfailingly entertaining Hannah Fry as our guide, we’ll be discussing these issues long after the last page is turned.

    Now, 10 years later and in the third edition, this classic still reigns supreme as the book written by an SQL master that teaches future SQL masters. These are not just tips and techniques; Joe also offers the best solutions to old and new challenges and conveys the way you need to think in order to get the most out of SQL programming efforts for both correctness and performance.In the third edition, Joe features new examples and updates to SQL-99, expanded sections of Query techniques, and a new section on schema design, with the same war-story teaching style that made the first and second editions of this book classics.

    But in spirit, the title is apt, as the book does cover a much broader range of topics than a typical introductory book on mathematical statistics. This book is for people who want to learn probability and statistics quickly. It is suitable for graduate or advanced undergraduate students in computer science, mathematics, statistics, and related disciplines. The book includes modern topics like nonparametric curve estimation, bootstrapping, and clas- sification, topics that are usually relegated to follow-up courses. The reader is presumed to know calculus and a little linear algebra. No previous knowledge of probability and statistics is required. Statistics, data mining, and machine learning are all concerned with collecting and analyzing data. For some time, statistics research was con- ducted in statistics departments while data mining and machine learning re- search was conducted in computer science departments. Statisticians thought that computer scientists were reinventing the wheel. Computer scientists thought that statistical theory didn't apply to their problems. Things are changing. Statisticians now recognize that computer scientists are making novel contributions while computer scientists now recognize the generality of statistical theory and methodology. Clever data mining algo- rithms are more scalable than statisticians ever thought possible. Formal sta- tistical theory is more pervasive than computer scientists had realized.

    With the same insight and authority that made their book The Unix programming Environment a classic, Brian Kernighan and Rob Pike have written The Practice of Programming to help make individual programmers more effective and productive.

    And then we wonder why software is notorious for being delivered late and full of bugs, while other engineers routinely deliver finished bridges, automobiles, electrical appliances, etc., on time and with only minor defects. This book sets out to redress this imbalance. Members of my advanced development team at Adobe who took the course based on the same material all benefited greatly from the time invested. It may appear as a highly technical text intended only for computer scientists, but it should be required reading for all practicing software engineers." --Martin Newell, Adobe Fellow"The book contains some of the most beautiful code I have ever seen." --Bjarne Stroustrup, Designer of C++"I am happy to see the content of Alex's course, the development and teaching of which I strongly supported as the CTO of Silicon Graphics, now available to all programmers in this elegant little book." --Forest Baskett, General Partner, New Enterprise Associates"Paul's patience and architectural experience helped to organize Alex's mathematical approach into a tightly-structured edifice--an impressive feat!" --Robert W. Taylor, Founder of Xerox PARC CSL and DEC Systems Research Center Elements of Programming provides a different understanding of programming than is presented elsewhere. Its major premise is that practical programming, like other areas of science and engineering, must be based on a solid mathematical foundation. The book shows that algorithms implemented in a real programming language, such as C++, can operate in the most general mathematical setting. For example, the fast exponentiation algorithm is defined to work with any associative operation. Using abstract algorithms leads to efficient, reliable, secure, and economical software.This is not an easy book. Nor is it a compilation of tips and tricks for incremental improvements in your programming skills. The book's value is more fundamental and, ultimately, more critical for insight into programming. To benefit fully, you will need to work through it from beginning to end, reading the code, proving the lemmas, and doing the exercises. When finished, you will see how the application of the deductive method to your programs assures that your system's software components will work together and behave as they must.The book presents a number of algorithms and requirements for types on which they are defined. The code for these descriptions--also available on the Web--is written in a small subset of C++ meant to be accessible to any experienced programmer. This subset is defined in a special language appendix coauthored by Sean Parent and Bjarne Stroustrup.Whether you are a software developer, or any other professional for whom programming is an important activity, or a committed student, you will come to understand what the book's experienced authors have been teaching and demonstrating for years--that mathematics is good for programming, and that theory is good for practice.

    So much so, in fact, that the 12-month design cycles cited in the last edition have shrunk to 6 or even 3 months today. Which is why, more than ever, you need a smart, practical guide that demonstrates how to plan, budget, organize, and manage your Web redesign - or even you initial design - projects from conceptualization to launch. This volume delivers! In these pages Web designer extraordinaire Kelly Goto and coauthor Emily Cotler have distilled their real-world experience into a sound approach to Web redesign workflow that is as much about business priorities as it is about good design. By focusing on where these priorities intersect, Kelly and Emily get straight to the heart of the matter. Each chapter includes a case study that illustrates a key step in the process, and you'll find a plethora of forms, checklists, and worksheets that help you put knowledge into action.This is an AIGA Design Press book published under Peachpit's New Riders imprint in partnership with AIGA.

    This book is a tutorial and exposition of the principles of Web site design. It aids users in building web sites that stand out from the noise of the web and bring them to the content in an effective and efficient way. This four-color book gives substantial critiques of existing Web site designs.

    Designers of digital technology products no longer regard their job as designing a physical object--beautiful or utilitarian--but as designing our interactions with it. In Designing Interactions, award-winning designer Bill Moggridge introduces us to forty influential designers who have shaped our interaction with technology. Moggridge, designer of the first laptop computer (the GRiD Compass, 1981) and a founder of the design firm IDEO, tells us these stories from an industry insider's viewpoint, tracing the evolution of ideas from inspiration to outcome. The innovators he interviews--including Will Wright, creator of The Sims, Larry Page and Sergey Brin, the founders of Google, and Doug Engelbart, Bill Atkinson, and others involved in the invention and development of the mouse and the desktop--have been instrumental in making a difference in the design of interactions. Their stories chart the history of entrepreneurial design development for technology.Moggridge and his interviewees discuss such questions as why a personal computer has a window in a desktop, what made Palm's handheld organizers so successful, what turns a game into a hobby, why Google is the search engine of choice, and why 30 million people in Japan choose the i-mode service for their cell phones. And Moggridge tells the story of his own design process and explains the focus on people and prototypes that has been successful at IDEO--how the needs and desires of people can inspire innovative designs and how prototyping methods are evolving for the design of digital technology.Designing Interactions is illustrated with more than 700 images, with color throughout. Accompanying the book is a DVD that contains segments from all the interviews intercut with examples of the interactions under discussion.Interviews with: Bill Atkinson - Durrell Bishop - Brendan Boyle - Dennis Boyle - Paul Bradley - Duane Bray - Sergey Brin - Stu Card - Gillian Crampton Smith - Chris Downs- Tony Dunne - John Ellenby - Doug Englebart - Jane Fulton Suri - Bill Gaver - Bing Gordon - Rob Haitani - Jeff Hawkins - Matt Hunter - Hiroshi Ishii - Bert Keely - David Kelley - Rikako Kojima - Brenda Laurel - David Liddle - Lavrans L?vlie - John Maeda - Paul Mercer - Tim Mott - Joy Mountford - Takeshi Natsuno - Larry Page - Mark Podlaseck - Fiona Raby - Cordell Ratzlaff - Ben Reason - Jun Rekimoto - Steve Rogers - Fran Samalionis - Larry Tesler - Bill Verplank - Terry Winograd - Will Wright