William Stuart, a compassionate platoon leader from the 7th ANGLICO (Air and Naval Gunfire Liaison Company) survived his unit's last battle but continued to mourn his losses. Douglas Moser, master of the .50 caliber machine gun, was one of those missing in action. Moser, a "gentle giant" of a man, had been Stuart's closest companion. In Valley of the Shadows, Stuart learns that the Red Cross has delivered a letter to Moser's mother informing her that he is a prisoner of war in Laos. "Tell Mr. Stuart," the letter closes. Stuart has his mission. Moser languishes in the POW camp, tormented daily by Nan, the disfigured, soul-dead camp commandant. Meanwhile, Stuart's mission takes him to the mountains of Moser's boyhood home in Georgia and on to the Foreign Legion archives in France as he searches for clues to the exact location of the camp. Along the way, Stuart recruits an old friend from their days together in Da Nang. Fellow navy officer Philip Hooper will bring along his elite team of SEALS (Sea, Air, Land) to form Moser's rescue party. Bureaucratic inertia in Washington and the rising anti-war movement conspire to stall the rescue interminably. Failure of a major operation to liberate the "Hanoi Hilton" adds to the forces arrayed against Moser's rescue. Finally, it is only through the direct intervention of the president that Stuart's mission is a go. But doubts remain: Has Stuart really found the "Valley of the Shadow" mentioned in Moser's letter? Is Moser still alive? And, most importantly, can Stuart, Hooper, and the SEALS really pull it off? Valley of the Shadow is dramatic, vivid, authentic - and surprising. "Old-fashioned heroism in a saga of Vietnam . . ." - Newsday

    But you've heard at least a dozen definitions of what it is, and heard of at least that many BI tools. Where do you start? Business Intelligence For Dummies makes BI understandable! It takes you step by step through the technologies and the alphabet soup, so you can choose the right technology and implement a successful BI environment. You'll see how the applications and technologies work together to access, analyze, and present data that you can use to make better decisions about your products, customers, competitors, and more.You'll find out how to:Understand the principles and practical elements of BI Determine what your business needs Compare different approaches to BI Build a solid BI architecture and roadmap Design, develop, and deploy your BI plan Relate BI to data warehousing, ERP, CRM, and e-commerce Analyze emerging trends and developing BI tools to see what else may be useful Whether you're the business owner or the person charged with developing and implementing a BI strategy, checking out Business Intelligence For Dummies is a good business decision.

    The book is non-theoretical, explaining concepts intuitively and teaching problem solving through worked examples and step-by-step instructions. This edition places more emphasis on conceptual understanding and understanding results. This edition also features increased emphasis on Excel, MINITAB, and the TI-83 Plus and TI 84-Plus graphing calculators, computing technologies commonly used in such courses.

    The first chapter describes basic features of the program and shows how to use it in simple arithmetic operations with scalars. The next two chapters focus on the topic of arrays (the basis of MATLAB), while the remaining text covers a wide range of other applications. Computer screens, tutorials, samples, and homework questions in math, science, and engineering, provide the student with the practical hands-on experience needed for total proficiency.

    This book provides 72 possible techniques and practical guidance on how and when to apply them.

    Author John Myles White shows you how this powerful class of algorithms can help you boost website traffic, convert visitors to customers, and increase many other measures of success.This is the first developer-focused book on bandit algorithms, which were previously described only in research papers. You’ll quickly learn the benefits of several simple algorithms—including the epsilon-Greedy, Softmax, and Upper Confidence Bound (UCB) algorithms—by working through code examples written in Python, which you can easily adapt for deployment on your own website.Learn the basics of A/B testing—and recognize when it’s better to use bandit algorithmsDevelop a unit testing framework for debugging bandit algorithmsGet additional code examples written in Julia, Ruby, and JavaScript with supplemental online materials

    Imagine that you face three doors, behind one of which is a prize. You choose one but do not open it. The host--call him Monty Hall--opens a different door, alwayschoosing one he knows to be empty. Left with two doors, will you do better by sticking with your first choice, or by switching to the other remaining door? In this light-hearted yet ultimately serious book, Jason Rosenhouse explores the history of this fascinating puzzle. Using a minimum ofmathematics (and none at all for much of the book), he shows how the problem has fascinated philosophers, psychologists, and many others, and examines the many variations that have appeared over the years. As Rosenhouse demonstrates, the Monty Hall Problem illuminates fundamental mathematical issuesand has abiding philosophical implications. Perhaps most important, he writes, the problem opens a window on our cognitive difficulties in reasoning about uncertainty.

    Three Novels by Paulo Coelho published by arrangement with HarperCollins Publishers

    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.

    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

    But sometimes the best way to move forward is to look back. Philip Barlag shows us that Julius Caesar is one of the most compelling leaders of the past to study—a man whose approach was surprisingly modern and extraordinarily effective. History is littered with leaders hopelessly out of touch with their people and ruthlessly pursuing their own ambitions or hedonistic whims. But Caesar, who rose from impoverished beginnings, proved by his words and deeds that he never saw himself as being above the average Roman citizen. And he had an amazing ability to generate loyalty, to turn enemies into allies and allies into devoted followers. Barlag uses dramatic and colorful incidents from Caesar's career—being held hostage by pirates, charging headlong alone into enemy lines, pardoning people he knew wanted him dead—to illustrate what Caesar can teach leaders today. Central to Barlag's argument is the distinction between force and power. Caesar avoided using brute force on his followers, understanding that fear never generates genuine loyalty. He exercised a power deeply rooted in his demonstrated personal integrity and his intuitive understanding of people's deepest needs and motivations. His supporters followed him because they wanted to, not because they were compelled to. Over 2,000 years after Caesar's death, this is still the kind of loyalty every leader wants to inspire. Barlag shows how anyone can learn to lead like Caesar.

    But, Alex Bellos says, "math can be inspiring and brilliantly creative. Mathematical thought is one of the great achievements of the human race, and arguably the foundation of all human progress. The world of mathematics is a remarkable place."Bellos has traveled all around the globe and has plunged into history to uncover fascinating stories of mathematical achievement, from the breakthroughs of Euclid, the greatest mathematician of all time, to the creations of the Zen master of origami, one of the hottest areas of mathematical work today. Taking us into the wilds of the Amazon, he tells the story of a tribe there who can count only to five and reports on the latest findings about the math instinct--including the revelation that ants can actually count how many steps they've taken. Journeying to the Bay of Bengal, he interviews a Hindu sage about the brilliant mathematical insights of the Buddha, while in Japan he visits the godfather of Sudoku and introduces the brainteasing delights of mathematical games.Exploring the mysteries of randomness, he explains why it is impossible for our iPods to truly randomly select songs. In probing the many intrigues of that most beloved of numbers, pi, he visits with two brothers so obsessed with the elusive number that they built a supercomputer in their Manhattan apartment to study it. Throughout, the journey is enhanced with a wealth of intriguing illustrations, such as of the clever puzzles known as tangrams and the crochet creation of an American math professor who suddenly realized one day that she could knit a representation of higher dimensional space that no one had been able to visualize. Whether writing about how algebra solved Swedish traffic problems, visiting the Mental Calculation World Cup to disclose the secrets of lightning calculation, or exploring the links between pineapples and beautiful teeth, Bellos is a wonderfully engaging guide who never fails to delight even as he edifies. "Here's Looking at Euclid "is a rare gem that brings the beauty of math to life.

    From entertainment to politics, from technology to advertising and from science to the business world, understanding and using data is now one of the most transferable and transferable skills out there. Learning how to work with data may seem intimidating or difficult but with Confident Data Skills you will be able to master the fundamentals and supercharge your professional abilities. This essential book covers data mining, preparing data, analysing data, communicating data, financial modelling, visualizing insights and presenting data through film making and dynamic simulations.In-depth international case studies from a wide range of organizations, including Netflix, LinkedIn, Goodreads, Deep Blue, Alpha Go and Mike's Hard Lemonade Co. show successful data techniques in practice and inspire you to turn knowledge into innovation. Confident Data Skills also provides insightful guidance on how you can use data skills to enhance your employability and improve how your industry or company works through your data skills. Expert author and instructor, Kirill Eremenko, is committed to making the complex simple and inspiring you to have the confidence to develop an understanding, adeptness and love of data.

    She struggles to provide for the kids, working a dead-end job while going to school. Stuck in a meaningless relationship, which only involved midnight creeps into her bed, she ends things with Darius in hopes for something better in life. Just when Cassandra isn't looking for anything or anyone, that's when Marco comes along; he's handsome, a great father to his son, and a business owner. Marco's had his share of women and often juggled relationships, but upon meeting Cassandra, his desire is kindled and he has to fight against wanting anything more than just a casual thing. With each day, they both fight the obvious; they want each other. A night of forbidden passion leads them into bed together; they soon wind up going back and forth, as Cassandra begins to date Damian to distract her from the one she really wants--Marco. The attraction is strong and the chemistry is explosive--will their efforts to ignore their hearts' desire trump love, or will they finally give in to what is obviously meant to be?

    While the mathematics is there, the effort is not all concentrated on proofs. Strang's emphasis is on understanding. He explains concepts, rather than deduces. This book is written in an informal and personal style and teaches real mathematics. The gears change in Chapter 2 as students reach the introduction of vector spaces. Throughout the book, the theory is motivated and reinforced by genuine applications, allowing pure mathematicians to teach applied mathematics.