They are typically used to categorize something based on other data that you have. The purpose of this book is to help you understand how Random Forests work, as well as the different options that you have when using them to analyze a problem. Additionally, since Decision Trees are a fundamental part of Random Forests, this book explains how they work. This book is focused on understanding Random Forests at the conceptual level. Knowing how they work, why they work the way that they do, and what options are available to improve results. This book covers how Random Forests work in an intuitive way, and also explains the equations behind many of the functions, but it only has a small amount of actual code (in python). This book is focused on giving examples and providing analogies for the most fundamental aspects of how random forests and decision trees work. The reason is that those are easy to understand and they stick with you. There are also some really interesting aspects of random forests, such as information gain, feature importances, or out of bag error, that simply cannot be well covered without diving into the equations of how they work. For those the focus is providing the information in a straight forward and easy to understand way.

    Who should we trust? Who should we believe? How can we make sure we make the right choices This is the book that will help you through that data deluge and show you how to make better and smarter decisions.Internationally renowned thinker, forecaster, and bestselling author Noreena Hertz reveals the extent to which life's big decisions are made on the basis of flawed information, weak assumptions, corrupted data, insufficient scrutiny of others, and a lack of self-knowledge. Taking us on a journey that reveals the extent to which we cede our intellectual power at our peril, Hertz shows how errors in decision-making lead young people to under-save for retirement, doctors to miss tumors, CEOs to make catastrophic investments, governments to adopt the wrong economic policies, and parents to irreversibly traumatize their children.To avert such disasters, Hertz persuasively argues, we need to become empowered decision-makers, capable of making high-stakes choices and holding accountable those who advise us.By weaving together cutting-edge research with real-world examples from Hollywood to Harry Potter, NASA to World War Two spies, Hertz constructs a path to more astute and empowered decision-making in ten clear steps. With a razor-sharp intellect and an instinct for popular storytelling, she offers counterintuitive, actionable guidance for making better choices-whether you are a business-person, a professional, a patient , or a parent.

    Includes a compact disc which is playable on CD-ROM and audio CD players.

    More recently, "computational thinking" has become part of the K-12 curriculum. But what is computational thinking? This volume in the MIT Press Essential Knowledge series offers an accessible overview, tracing a genealogy that begins centuries before digital computers and portraying computational thinking as pioneers of computing have described it.The authors explain that computational thinking (CT) is not a set of concepts for programming; it is a way of thinking that is honed through practice: the mental skills for designing computations to do jobs for us, and for explaining and interpreting the world as a complex of information processes. Mathematically trained experts (known as "computers") who performed complex calculations as teams engaged in CT long before electronic computers. The authors identify six dimensions of today's highly developed CT--methods, machines, computing education, software engineering, computational science, and design--and cover each in a chapter. Along the way, they debunk inflated claims for CT and computation while making clear the power of CT in all its complexity and multiplicity.

    Intended for developers who are already familiar with the Apex language, and experienced Java and C# developers who are moving to Apex, this book starts where the Force.com documentation leaves off. Instead of trying to cover all of the features of the platform, Advanced Apex programming focuses entirely on the Apex language and core design patterns. You’ll learn how to truly think in Apex – to embrace limits and bulk patterns. You’ll see how to develop architectures for efficient and reliable trigger handling, and for asynchronous operations. You’ll discover that best practices differ radically depending on whether you are building software for a specific organization or for a managed package. And you’ll find approaches for incorporating testing and diagnostic code that can dramatically improve the reliability and deployment of Apex software, and reduce your lifecycle and support costs. Based on his experience both as a consultant and as architect of a major AppExchange package, Dan Appleman focuses on the real-world problems and issues that are faced by Apex developers every day, along with the obscure problems and surprises that can sneak up on you if you are unprepared.

    Today, Data is the vital raw material of the information economy. The explosive abundance of this digital asset, more than doubling every two years, is creating a new world of opportunity and challenge.Data-ism is about this next phase, in which vast, Internet-scale data sets are used for discovery and prediction in virtually every field. It is a journey across this emerging world with people, illuminating narrative examples, and insights. It shows that, if exploited, this new revolution will change the way decisions are made—relying more on data and analysis, and less on intuition and experience—and transform the nature of leadership and management.Lohr explains how individuals and institutions will need to exploit, protect, and manage their data to stay competitive in the coming years. Filled with rich examples and anecdotes of the various ways in which the rise of Big Data is affecting everyday life it raises provocative questions about policy and practice that have wide implications for all of our lives.

     Free BONUS Inside! As the sole legitimate child of Lord Byron, Ada Lovelace was the progeny of literary royalty. Many might have naturally expected her to go into the field of her father, but instead of delving into poetry, she delved into the hard sciences of mathematics and analytic thinking. Even so, Ada still had the imagination of a lyricist when writing scientific treatises, at times referring to her own work as nothing short of “poetical science.” Everything she did, she did with passion and dogged determination. It was this drive that led Ada to look farther and search deeper than her contemporaries. Her unique vision led her to become one of the pioneers of the modern computer and one of the world’s first computer programmers. But what exactly do we know about Ada Lovelace, and how can it be quantified? Read this book to find out more about the nineteenth-century mathematician and writer Augusta Ada King, Countess of Lovelace. Discover a plethora of topics such as The Daughter of Lord and Lady Byron Early Years of Paralysis The World’s First Computer Programmer Rumors and Laudanum Addiction A Grim Prognosis Last Days and Death And much more! So if you want a concise and informative book on Ada Lovelace, simply scroll up and click the "Buy now" button for instant access!

    Join Curtis White on a crusade against tedium as he takes on this bland, no-thinking-required product' that passes for culture in America and that we've signed up and paid for in full too. It's not about high- or low-brow, it's about a mainstream consensus that pleases everyone but moves, challenges or shocks no one: from the Hollywood machine to cultural theory equating Madonna with Milton, from free market ideology to TV arts programmes, New Age self-help and Oprah's Book Club. This is a book for anyone who thinks culture should be a force for change, not just something to acquire and consume; who wants to reclaim the destabilizing power of the imagination and start thinking for themselves.

    In addition to fine-tuning and streamlining the prose and the overall presentation, the authors have comprehensively updated the text and the applications to reflect recent economic developments and topics of current interest. Students in particular will find the Study Guide, with its practice questions, exercises, and problems, to be an excellent source of study support and extra review material. It is available in both a one- and a two-volume edition.

    But in the end, its electronic couplings proved too complex and expensive, the political will failed, and the project died in 1987. The story of Aramis is told by several different parties, none of which take precedence over any other: a young engineer and his professor, who act as detective to ferret out the reasons for the project's failure; company executives and elected officials; a sociologist; and finally Aramis itself, who delivers a passionate plea: technological innovation has needs and desires, especially a desire to be born, but cannot live without the sustained commitment of those who have created it.

    That is a well-known period in history, when titans like Andrew Carnegie, John D. Rockefeller, and J. P. Morgan walked the earth.But as Charles R. Morris shows us, the platform for that spectacular growth spurt was built in the first half of the century. By the 1820s, America was already the world's most productive manufacturer and the most intensely commercialized society in history. The War of 1812 jump-started the great New England cotton mills, the iron centers in Connecticut and Pennsylvania, and the forges around the Great Lakes. In the decade after the War, the Midwest was opened by entrepreneurs. In this book, Morris paints a vivid panorama of a new nation buzzing with the work of creation. He also points out the parallels and differences in the nineteenth century American/British standoff and that between China and America today.

    Another is composing classical music. Labs are creating life-forms from synthetic DNA. A doctor designs an artificial trachea, uses a 3D printer to produce it, and implants it and saves a child's life. Astonishing technological advances like these are arriving in increasing numbers. Scholar and entrepreneur Vivek Wadhwa uses this book to alert us to dozens of them and raise important questions about what they may mean for us. Breakthroughs such as personalized genomics, self-driving vehicles, drones, and artificial intelligence could make our lives healthier, safer, and easier. But the same technologies raise the specter of a frightening, alienating future: eugenics, a jobless economy, complete loss of privacy, and ever-worsening economic inequality. As Wadhwa puts it, our choices will determine if our future is Star Trek or Mad Max. Wadhwa offers us three questions to ask about every emerging technology: Does it have the potential to benefit everyone equally? What are its risks and rewards? And does it promote autonomy or dependence? Looking at a broad array of advances in this light, he emphasizes that the future is up to us to create--that even if our hands are not on the wheel, we will decide the driverless car's destination.ContentsPreface IntroductionPART ONE: The Here and Now1. A bitter taste of dystopia2. Welcome to Moore’s world3. How change will affect us personally and why choices matter4. If change is always the answer, what are the questions?PART TWO: Does the technology have the potential to benefit everyone equally?5. The amazing and scary rise of Artificial Intelligence6. Remaking education with avatars and A.I.7. We are becoming data; our doctors, softwarePART THREE: What are the risks and the rewards?8. Robotics and Biology: The inevitable merging of man and machine9. Security and privacy in an era of ubiquitous connectivity10. The drones are coming11. Designer genes, the bacteria in our guts, and precision medicinePART FOUR: Does the technology foster autonomy or dependency?12. Your own private driver: Self-driving cars, trucks, and planes13. When your scale talks to your refrigerator: The Internet of Things14. The future of your body is electric15. Almost free energy and foodConclusion: So will it be Star Trek or Mad Max?NotesAcknowledgmentsIndexAbout the authors

    A cyber-enigma with an enthusiastic following, it pops up in headlines and fuels endless media debate. You can apparently use it to buy anything from coffee to cars, yet few people seem to truly understand what it is. This raises the question: Why should anyone care about bitcoin?In The Age of Cryptocurrency, Wall Street journalists Paul Vigna and Michael J. Casey deliver the definitive answer to this question. Cybermoney is poised to launch a revolution, one that could reinvent traditional financial and social structures while bringing the world's billions of "unbanked" individuals into a new global economy. Cryptocurrency holds the promise of a financial system without a middleman, one owned by the people who use it and one safeguarded from the devastation of a 2008-type crash.But bitcoin, the most famous of the cybermonies, carries a reputation for instability, wild fluctuation, and illicit business; some fear it has the power to eliminate jobs and to upend the concept of a nation state. It implies, above all, monumental and wide-reaching change-for better and for worse. But it is here to stay, and you ignore it at your peril.Vigna and Casey demystify cryptocurrency-its origins, its function, and what you need to know to navigate a cyber-economy. The digital currency world will look very different from the paper currency world; The Age of Cryptocurrency will teach you how to be ready.

    It's aimed at developers who might not be quite comfortable with the idea of pointers and static typing.http://openmymind.net/The-Little-Go-B...