This book is aimed at the working Rails developer who is looking to grow and evolve Rails projects while keeping them flexible, maintainable, and robust. The focus is on pragmatic solutions which tread a “middle way” between the expedience of the Rails “golden path”, and rigid OO purity.

    Many exercises are presented to help reinforce the lessons learned, and answers to the exercises are given in a new appendix.Most of the remaining chapters are dedicated to the reference material, which describes in detail the standard features of Scheme included in the Revised$^5$ Report on Scheme and the ANSI/IEEE standard for Scheme.Numerous examples are presented throughout the introductory and reference portions of the text, and a unique set of extended example programs and applications, with additional exercises, are presented in the final chapter. Reinforcing the book's utility as a reference text are appendices that present the formal syntax of Scheme, a summary of standard forms and procedures, and a bibliography of Scheme resources.The Scheme Programming Language stands alone as an introduction to and essential reference for Scheme programmers. it is also useful as a supplementary text for any course that uses Scheme.The Scheme Programming Language is illustrated by artist Jean-Pierre Hébert, who writes Scheme programs to extend his ability to create sophisticated works of digital art.R. Kent Dybvig is Professor of Computer Science at Indiana University and principal developer of Chez Scheme.

    Those with heart conditions or frail demeanors should not read* * *500 MORE WAYS TO BE A BETTER WRITER is the sequel to 500 WAYS TO BE A BETTER WRITER (which is itself a sequel to 250 THINGS YOU SHOULD KNOW ABOUT WRITING).Nab this book and you’ll find within a series of lists geared toward enlightening you with the short sharp satori smack of dubious writing wisdom. The book contains a veritable avalanche of writing advice meant to help novelists, screenwriters and other storytellers better understand topics near and dear to the penmonkey existence. The book answers questions such as, “How do I find my voice? What should I know about procuring an agent? How do I find the proper story structure for my story? Where are my pants?”500 MORE WAYS contains the following:25 Financial F**k-Ups Writers Make 25 Mistakes To Look For In Your Writing 25 Reasons Readers Will Keep Reading Your Story 25 Reasons Readers Will Quit Reading Your Story 25 Reasons Writers Are Bug-F**k Nuts 25 Things I Want To Say To So-Called “Aspiring” Writers 25 Things Writers Should Know About Blogging 25 Things Writers Should Know About Agents 25 Things Writers Should Start Doing (As Soon As Possible) 25 Things Writers Should Stop Doing (Starting Right Now) 25 Things You Should Know About Narrative Structure 25 Things You Should Know About Protagonists 25 Things You Should Know About Rejection 25 Things You Should Know About Setting 25 Things You Should Know About Suspense And Tension In Storytelling 25 Things You Should Know About Your Authorial Voice 25 Things You Should Know About Your “Finished” Novel 25 Ways For Writers To Help Other Writers Appendix I: 25 More Writing Challenges Appendix II: 25 Things You Should Know About Me

    With the sophisticated algorithms in this book, you can write smart programs to access interesting datasets from other web sites, collect data from users of your own applications, and analyze and understand the data once you've found it.Programming Collective Intelligence takes you into the world of machine learning and statistics, and explains how to draw conclusions about user experience, marketing, personal tastes, and human behavior in general -- all from information that you and others collect every day. Each algorithm is described clearly and concisely with code that can immediately be used on your web site, blog, Wiki, or specialized application. This book explains:Collaborative filtering techniques that enable online retailers to recommend products or media Methods of clustering to detect groups of similar items in a large dataset Search engine features -- crawlers, indexers, query engines, and the PageRank algorithm Optimization algorithms that search millions of possible solutions to a problem and choose the best one Bayesian filtering, used in spam filters for classifying documents based on word types and other features Using decision trees not only to make predictions, but to model the way decisions are made Predicting numerical values rather than classifications to build price models Support vector machines to match people in online dating sites Non-negative matrix factorization to find the independent features in a dataset Evolving intelligence for problem solving -- how a computer develops its skill by improving its own code the more it plays a game Each chapter includes exercises for extending the algorithms to make them more powerful. Go beyond simple database-backed applications and put the wealth of Internet data to work for you. "Bravo! I cannot think of a better way for a developer to first learn these algorithms and methods, nor can I think of a better way for me (an old AI dog) to reinvigorate my knowledge of the details."-- Dan Russell, Google "Toby's book does a great job of breaking down the complex subject matter of machine-learning algorithms into practical, easy-to-understand examples that can be directly applied to analysis of social interaction across the Web today. If I had this book two years ago, it would have saved precious time going down some fruitless paths."-- Tim Wolters, CTO, Collective Intellect

    This book shows you how to claim your share. Over 200 pages of valuable metal detecting information designed to get you out there finding treasure on your very first outing.Finding treasure with a metal detector is real and doing it is simple and easy once you read this book. There are people finding incredible old coins made from gold and silver, valuable historical relics and old jewelry made from gold, silver and platinum. But you won't find these great treasures unless you know where and how to look. Metal Detecting: A Beginner's Guide shows you this and much more.Veteran detectorist and treasure enthusiast Mark Smith continues to provide great information to anyone interested in the great hobby of metal detecting. In his second book on the subject, he manages to answer the common questions that every novice has when they are thinking about getting started. From choosing the right machine to identifying your valuable treasure, Mark Smith covers these subjects and everything in between in an easy to understand way.While this metal detecting book may be geared towards the novice treasure hunter, there are plenty of choice tips that even experienced treasure hunters can pick up. Mark Smith reveals some of his best guarded metal detecting secrets in this metal detecting guide that puts more treasure in your find's pouch.Fully illustrated diagrams and real life pictures describe in detail the easiest ways to not only locate treasure, but safely recover it as well.Learn how to find more treasure by: understanding common metal detecting terminology, understanding which metal detectors work the best and where, understanding how and why a metal detector works, other equipment you will need, proper etiquette, what you can expect to find, why you should never throw anything away, how to identify your finds, how to identify jewelry, how to tell if it is real gold, how to metal detect with children, which recovery tools work the best, how to recover treasure, how to metal detect private property, how to identify unknown metal detecting finds, metal detecting creeks, rivers and lakes, pinpointing, making weak targets stronger, cleaning your finds, the best places to use your metal detector, selling your finds and more!What are you waiting for? Find out how you can maximize your treasure with this informative metal detecting book today.

    Often, computer science and computer engineering curricula don't provide students with a concentrated and consistent introduction to the fundamental concepts that underlie all computer systems. Traditional computer organization and logic design courses cover some of this material, but they focus largely on hardware design. They provide students with little or no understanding of how important software components operate, how application programs use systems, or how system attributes affect the performance and correctness of application programs. - A more complete view of systems - Takes a broader view of systems than traditional computer organization books, covering aspects of computer design, operating systems, compilers, and networking, provides students with the understanding of how programs run on real systems. - Systems presented from a programmers perspective - Material is presented in such a way that it has clear benefit to application programmers, students learn how to use this knowledge to improve program performance and reliability. They also become more effective in program debugging, because t

    You'll master the Unity toolset from the ground up, adding the skills you need to go from application coder to game developer. Based on Unity version 5.About the BookThis book helps readers build successful games with the Unity game development platform. You will use the powerful C# language, Unity's intuitive workflow tools, and a state-of-the-art rendering engine to build and deploy mobile, desktop, and console games. Unity's single codebase approach minimizes inefficient switching among development tools and concentrates your attention on making great interactive experiences.Unity in Action teaches you how to write and deploy games. You'll master the Unity toolset from the ground up, adding the skills you need to go from application coder to game developer. Each sample project illuminates specific Unity features and game development strategies. As you read and practice, you'll build up a well-rounded skill set for creating graphically driven 2D and 3D game applications.You'll need to know how to program, in C# or a similar OO language. No previous Unity experience or game development knowledge is assumed.

    In this book, you’ll learn how many of the most fundamental data science tools and algorithms work by implementing them from scratch. If you have an aptitude for mathematics and some programming skills, author Joel Grus will help you get comfortable with the math and statistics at the core of data science, and with hacking skills you need to get started as a data scientist. Today’s messy glut of data holds answers to questions no one’s even thought to ask. This book provides you with the know-how to dig those answers out. Get a crash course in Python Learn the basics of linear algebra, statistics, and probability—and understand how and when they're used in data science Collect, explore, clean, munge, and manipulate data Dive into the fundamentals of machine learning Implement models such as k-nearest Neighbors, Naive Bayes, linear and logistic regression, decision trees, neural networks, and clustering Explore recommender systems, natural language processing, network analysis, MapReduce, and databases

    This guide also helps you understand the many data-mining techniques in use today.Based on an MBA course Provost has taught at New York University over the past ten years, Data Science for Business provides examples of real-world business problems to illustrate these principles. You’ll not only learn how to improve communication between business stakeholders and data scientists, but also how participate intelligently in your company’s data science projects. You’ll also discover how to think data-analytically, and fully appreciate how data science methods can support business decision-making.Understand how data science fits in your organization—and how you can use it for competitive advantageTreat data as a business asset that requires careful investment if you’re to gain real valueApproach business problems data-analytically, using the data-mining process to gather good data in the most appropriate wayLearn general concepts for actually extracting knowledge from dataApply data science principles when interviewing data science job candidates

     The Industrial Revolution which took place in Great Britain between the middle of the eighteenth century and the middle of the nineteenth transformed British industry and society and made Great Britain the most powerful nation in the world. The Industrial Revolution didn’t happen due to one, single factor but rather to a number of separate yet related developments which interacted to change the world profoundly and completely. Improvements in the production of iron allowed the construction of efficient, reliable steam engines. These steam engines were then used in the production of iron to improve the quality and quantity of iron production even further. Manufacturing became concentrated in factories filled with automated machinery while canals and improved roads allowed raw materials to be brought to these factories and for finished products to be distributed. Inside you will read about... ✓ Transport and the Rise of Global Trade ✓ The Iron Heart of the Industrial Revolution ✓ The Power of Steam ✓ The Lives of Workers during the Industrial Revolution ✓ The Rise of Labor Movements And much more! During the the Industrial Revolution, people became used to the availability of cheap, mass-produced items transported to the point of sale from other parts of the country or even other parts of the world. However, people also became used to living in large cities and working in factories and mills, often for meager wages and in dangerous and exhausting conditions. Progress made a small number of people very wealthy, but it also condemned a large portion of the British population to living and working in danger and squalor. Opposition to the Industrial Revolution came from skilled workers who saw their jobs being replaced by machines and from influential poets who deplored the loss of what they regarded as an idyllic, rural, agrarian way of life. This opposition was brutally repressed, and even those who tried to champion the rights of workers sometimes found themselves under attack by the British Army. The Industrial Revolution changed almost everything about the British way of life, and it spread from Great Britain to most of the developed countries of the world. This is the story of a revolution which continues to affect all of us in the modern world.

    Whether you are a beginner or an advanced student of meditation, Qigong or Yoga, this book is for you! The dozens of easy to follow warm up exercises and ancient meditation techniques alone is worth the cost of this course. However, Oceanic Mind introduces not only the finest techniques, but a complete meditation strategy training for consistently profound meditation. The strategy training transforms meditation into a much much easier and a more customized process. Regardless of your background, you will love this book.

    Try out more than 1,000 commands to find and get software, monitor system health and security, and access network resources. Then, apply the skills you learn from this book to use and administer desktops and servers running Ubuntu, Debian, and KNOPPIX or any other Linux distribution.

    THE 'MUST-HAVE' COMPLETE COLLECTIONIn this irresistible, 'must-have' collection you get ALL the Legendary Ancient Writers, AND get ALL their plays, books and works at the same time. But that is not all..MULTIPLE TRANSLATIONSIn addition, you will also get 2 other important benefits:*Multiple translations of many of the works, covering their translation into Rhyming Verse, Blank Verse and Prose.*In-Depth Footnotes, Introductions and Explanations.INCLUDED WORKS: WORKS OF HOMER:THE ILIAD*ALEXANDER POPE TRANSLATION - Verse*SAMUEL BUTLER TRANSLATION - Prose*EARL OF DERBY TRANSLATION - Verse*LANG, LEAF, MYERS TRANSLATION - Prose*WILLIAM COWPER TRANSLATION - Blank VerseTHE ODYSSEY*ALEXANDER POPE TRANSLATION - Verse*SAMUEL BUTLER TRANSLATION - Prose*LANG, BUTCHER TRANSLATION - Prose*WILLIAM COWPER TRANSLATION - Blank VerseWORKS OF OVID:*HEORIDES *ARS AMORICA, AMORES (The Love Poems)*METAMORPHOSESWORKS OF SOPHOCLESTHE OEDIPUS TRILOGY:*ANTIGONE*KING OEDIPUS*OEDIPUS AT COLONOS*AIAS*ELECTRA*THE TRACHINIAN MAIDENS*PHILOCTETESWORKS OF VIRGIL*THE AENEID - Prose*THE AENEID - Verse*ECOLOGUES*GEORGICSWORKS OF APOLLONIUS*ARGONAUTICA (JASON AND THE ARGONAUTS,THE GOLDEN FLEECE)WORKS OF QUINTUS*POSTHOMERICAWORKS OF HESIOD*WORK AND DAYS*THEOGONY*HOMERICA AND HYMNS(including many rarities such as 'Contest between Hesiod and Homer' and 'The Small Iliad')WORKS OF EURIPIDES*ANDROMACHE*RHESUS*HECUBA*ION*HERACLES*HERACLIEDAE*HELEN*ELECTRA*CYCLOPS*ALCESTIS*ORESTES*PHOENISSAE*MEDEA*HIPPOLYTUS*BACCHAE*IPHIGENIA IN AULIDE*IPHIGENIA IN TAURIS*TROJAN WOMENWORKS OF APULEIUS*THE GOLDEN ASS*APOLOGIA (A DISCOURSE IN MAGIC)WORKS OF APOLLODORUS*LIBRARYWORKS OF AESOP*COMPLETE FABLESWORKS OF AESCHYLUS*PERSIANS*PROMETHEUS BOUND*SEVEN AGAINST THEBES*SUPPLIANTS*AGAMEMNON*LIBATION BEARERS*EUMENIDES*CHOEPORIWORKS OF ARISTOPHANES*THE ELEVEN COMEDIESYOUR ENVIABLE COLLECTIONImagine the joy of having this exclusive collection, which rivals many libraries, at your fingertips. Imagine the incredible pleasure of reading these nuggets of literature gold, discovering inspiration in the kind of fantastic, mythological tales you love.PLUS YOU GET FREE BONUSES:*Biographies of each of the Writers - Details of their colorful histories, intriguing personal lives and remarkable adventures in the ancient world.*Easy to navigate 'Table of Contents' - jump between works and between chapters in each work easily.

    Madhusudhan Konda provides an overview of these, including strings in switch statements, multi-catch exception handling, try-with-resource statements, the new File System API, extensions of the JVM, support for dynamically-typed languages, and the fork and join framework for task parallelism.

    Red Notice by Bill Browder | A 15-minute Summary & Analysis PLEASE NOTE: This is an unofficial summary and analysis of the book and NOT the original book. Inside this Instaread Summary & Analysis of Red Notice Summary of entire book Introduction to the Important People in the book Key Takeaways and Analysis of Key Takeaways Analysis of the Themes and Author’s Style