With more traditional web servers becoming obsolete, having knowledge on servers that achieve high scalability and optimal resource consumption using Node.js is the key to your app development success. Teaching you the essentials to making event-driven server-side apps, this book demonstrates how you can use less space and take less time for communication between web client and server.Contains numerous hands-on examples Explains implementation of real-time apps including Socket.IO and HTML5, and WebSockets Addresses practical Node.js advantages from specific design choices Demonstrates why knowledge and use of JavaScript is beneficial Includes an interactive online component with sample chapters Explains components of stand out apps including brevity and benchmarks Looking to enhance your abilities even further? Smashing Node.js: JavaScript Everywhere makes developing server-side apps accessible with its focus on JavaScript, open source, and easy-to-use language.

    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 Laura believes Sandrine and Jonathon were both murdered and that the key to the motive lies onboard Pandora.What secrets are hidden onboard Menzel’s yacht? What deals were brokered that are worth killing for? And can Laura get to the truth before she herself becomes just another inconvenient guest at the party?

    Charlotte, James and their seven children are independent spirits, united by strong family values.Living in a mining community is never easy, and when the shadow of impending war threatens, they must pull together to face the hardship to come. Can this close-knit family overcome whatever tragedy life throws at them?The Black Mountains, a moving saga of love, happiness and heartbreak, is perfect for fans of Rosie Goodwin and Katie Flynn. ‘Sensitive and exceptionally polished’ Manchester Evening News The Hillsbridge Sagas The Black Mountains The Emerald Valley The Hills and the Valley A Family Affair

    Perform this genius seemingly-mathematical feat on any napkin, any receipt, or even on your friend's arm.You can learn the famous Magic Square, and you can learn it in under 10 minutes.You will have a magician's Grand Finale, in your hands at any moment. This gets audible gasps, and you can wow people with this for the rest of your life...**************************THE PERFORMANCE:**************************Your friend will name a random number. You then speedily write 16 different numbers into a 4x4 grid. With a smug flourish, you then reveal that all combinations and directions within the grid add up to their chosen number. It is simply mind-blowing.Effortlessly perform a trick that it seems only a computer could perform, and learn how in 10 minutes from right now.

    An introduction to Python programming for beginners.

    But just how does the magic happen?In Black Hat Python, the latest from Justin Seitz (author of the best-selling Gray Hat Python), you'll explore the darker side of Python's capabilities writing network sniffers, manipulating packets, infecting virtual machines, creating stealthy trojans, and more. You'll learn how to:Create a trojan command-and-control using GitHubDetect sandboxing and automate common malware tasks, like keylogging and screenshottingEscalate Windows privileges with creative process controlUse offensive memory forensics tricks to retrieve password hashes and inject shellcode into a virtual machineExtend the popular Burp Suite web-hacking toolAbuse Windows COM automation to perform a man-in-the-browser attackExfiltrate data from a network most sneakilyInsider techniques and creative challenges throughout show you how to extend the hacks and how to write your own exploits.When it comes to offensive security, your ability to create powerful tools on the fly is indispensable. Learn how in Black Hat Python."

    This Box Set Includes 3 Books: Python Programming For Beginners - Learn The Basics Of Python In 7 Days! Python Programming For Intermediates - Learn The Basics Of Python In 7 Days! Python Programming For Advanced - Learn The Basics Of Python In 7 Days! Python Programming For Beginners - Learn The Basics Of Python In 7 Days! Here's what you'll learn from this book: ✓Introduction ✓Understanding Python: A Detailed Background ✓How Python Works ✓Python Glossary ✓How to Download and Install Python ✓Python Programming 101: Interacting With Python in Different Ways ✓How to Write Your First Python Program ✓Variables, Strings, Lists, Tuples, Dictionaries ✓About User-Defined Functions ✓How to Write User-Defined Functions in Python ✓About Coding Style ✓Practice Projects: The Python Projects for Your Practice Python Programming For Intermediates - Learn The Basics Of Python In 7 Days! Here's what you'll learn from this book: ✓ Shallow copy and deep copy ✓ Objects and classes in Python–including python inheritance, multiple inheritances, and so on ✓ Recursion in Python ✓ Debugging and testing ✓ Fibonacci sequence (definition) and Memoization in Python in Python ✓ Arguments in Python ✓ Namespaces in Python and Python Modules ✓ Simple Python projects for Intermediates Python Programming For Advanced - Learn The Basics Of Python In 7 Days! Here's what you'll learn from this book: ✓File management ✓Python Iterator ✓Python Generator ✓Regular Expressions ✓Python Closure ✓Python Property ✓Python Assert, and ✓Simple recap projects Start Coding Now!

    Things are bound to get hot when the men of Crimson Security are involved. Book 1 My name is Darby Connors and I’m in deep. Maybe too deep for me to make it out alive. It isn’t the first time I’ve been in trouble while doing my job, but this time feels different. Something is coming for me. Someone is coming for me. Hendrix Crimson is assigned to guard my body, and guard it, he does. Caught up in the mess I’ve made, he tries to help me solve the case I’m working on so he only has to worry about one killer coming after me. Book 2 My name is Lacey Holt and I do not need help from Jagger Crimson. Someone is messing with my family, and my ranch, trying to drag up painful family memories. They’ve convinced my dad that my brother’s murderer is back and ready to pick off the rest of our family. I know better. I know that I can take care of it without Jagger, too. He’s a constant distraction and all he’ll do is get in my way. Convincing my dad of that is another story. When it becomes clear that the threat is directed at me, he is ready to ship me off to safety. I’m an adult, though. I’m tough. There’s nothing that this hidden bully can do to run me off my family land. Except for kidnap me and lock me away. So, maybe I do need Jagger after all. Not that I’d ever want to admit that to him. Book 3 Left an orphan after a rough childhood, I was taken in by the president of a rough Motorcycle Club. Given plenty of room to grow, I was treated like a princess. Until I wasn’t. When things in the club change and a new president takes his throne, I’m in more danger than ever. Sold and then saved by Jackson, I owe him my life. It’s not anything he’s interested in, though. Jackson comes with baggage, but I get it. I have my own. Who can help that when we unpack it, things get a little messy? Book 4 I’m not who I used to be. Detective Rain Willows died while being held captive by a very bad man. Now, I don’t know who I am. I’m not a cop. I’m barely a human some days. I’m scared. I lost everything. I gained some scars. The bad man is still after me. Thad Brooks has an ax to grind with me, but he feels like the only thing standing between me and death. I don’t want to admit that I’m afraid, or that I need help, but when things get bad enough, I’m not too stubborn to wave the white flag. Book 5 My only desire in life is to get my daughter back. At any cost, including my life. My name is Clara Crimson and I’m not a good person. I live with a monster and I have killed. I don’t deserve to be happy, but she does. Cash Crimson, my ex-husband, has every reason to hate me and he does. He probably would like to watch me die, but he thinks he needs me to find our daughter. What we find isn’t what we expected, though. I’m not sure either of us will survive it. I’m not sure I want to. We have to keep our daughter safe. We have to get close and remember we’re on the same team. It's time to bring down the man who destroyed us.

    – President Barack Obama calls America’s alliance with Israel “unshakeable.” The Masada Complex questions this assertion with a realistic political thriller taking place in Arizona, Washington and Jerusalem.The Masada Complex unveils a chilling scenario. Its hero is Masada El-Tal, a beautiful Israeli expatriate, currently an investigative reporter in Arizona. Her exposure of a bribe payment causes a disgraced U.S. senator to commit suicide. Angered by Israel’s supposed culpability, an angry Congress moves to terminate all military aid to the Jewish state. At the same time, someone repeatedly attempts to assassinate Masada, whose relentless investigation becomes a race against time, leading to a shocking discovery and a spectacular climax.

    Small for his age and in his first year of high school, Justin's only friend has become a bully and harasses him at every turn. But Justin has a secret. He feels no pain from the punches and shoves that come his way and, at his mother's request, must pretend to be normal even though he wants to fight back.A mysterious message on his computer sends him in search of knowledge about the legendary Titans. While at the local library, he is confronted by a frightening group of men who follow him and attack his home.Justin must escape, but there seems no way out and leaving his ailing mother behind is something Justin does not want to do. But Justin's mother and a family friend urge him to get to a place of safety; a sanctuary where he may, perhaps, learn more about his strange gift and it's connection with the long-dead Titans.

    Ideal for processing large datasets, the Apache Hadoop framework is an open source implementation of the MapReduce algorithm on which Google built its empire. This comprehensive resource demonstrates how to use Hadoop to build reliable, scalable, distributed systems: programmers will find details for analyzing large datasets, and administrators will learn how to set up and run Hadoop clusters. Complete with case studies that illustrate how Hadoop solves specific problems, this book helps you:Use the Hadoop Distributed File System (HDFS) for storing large datasets, and run distributed computations over those datasets using MapReduce Become familiar with Hadoop's data and I/O building blocks for compression, data integrity, serialization, and persistence Discover common pitfalls and advanced features for writing real-world MapReduce programs Design, build, and administer a dedicated Hadoop cluster, or run Hadoop in the cloud Use Pig, a high-level query language for large-scale data processing Take advantage of HBase, Hadoop's database for structured and semi-structured data Learn ZooKeeper, a toolkit of coordination primitives for building distributed systems If you have lots of data -- whether it's gigabytes or petabytes -- Hadoop is the perfect solution. Hadoop: The Definitive Guide is the most thorough book available on the subject. "Now you have the opportunity to learn about Hadoop from a master-not only of the technology, but also of common sense and plain talk." -- Doug Cutting, Hadoop Founder, Yahoo!

    You’ll learn how each of these platform-agnostic patterns work, when they might be useful in the cloud, and what impact they’ll have on your application architecture. You’ll also see an example of each pattern applied to an application built with Windows Azure.The patterns are organized into four major topics, such as scalability and handling failure, and primer chapters provide background on each topic. With the information in this book, you’ll be able to make informed decisions for designing effective cloud-native applications that maximize the value of cloud services, while also paying attention to user experience and operational efficiency.Learn about architectural patterns for:Scalability. Discover the advantages of horizontal scaling. Patterns covered include Horizontally Scaling Compute, Queue-Centric Workflow, and Auto-Scaling.Big data. Learn how to handle large amounts of data across a distributed system. Eventual consistency is explained, along with the MapReduce and Database Sharding patterns.Handling failure. Understand how multitenant cloud services and commodity hardware influence your applications. Patterns covered include Busy Signal and Node Failure.Distributed users. Learn how to overcome delays due to network latency when building applications for a geographically distributed user base. Patterns covered include Colocation, Valet Key, CDN, and Multi-Site Deployment.

    The R language provides everything you need to do statistical work, but its structure can be difficult to master. This collection of concise, task-oriented recipes makes you productive with R immediately, with solutions ranging from basic tasks to input and output, general statistics, graphics, and linear regression.Each recipe addresses a specific problem, with a discussion that explains the solution and offers insight into how it works. If you're a beginner, R Cookbook will help get you started. If you're an experienced data programmer, it will jog your memory and expand your horizons. You'll get the job done faster and learn more about R in the process.Create vectors, handle variables, and perform other basic functionsInput and output dataTackle data structures such as matrices, lists, factors, and data framesWork with probability, probability distributions, and random variablesCalculate statistics and confidence intervals, and perform statistical testsCreate a variety of graphic displaysBuild statistical models with linear regressions and analysis of variance (ANOVA)Explore advanced statistical techniques, such as finding clusters in your dataWonderfully readable, R Cookbook serves not only as a solutions manual of sorts, but as a truly enjoyable way to explore the R language--one practical example at a time.--Jeffrey Ryan, software consultant and R package author

    Developed by computer science instructors, books in the For the absolute beginner series teach the principles of programming through simple game creation. You will acquire the skills that you need for more practical Python programming applications and you will learn how these skills can be put to use in real-world scenarios. Best of all, by the time you finish this book you will be able to apply the basic principles you've learned to the next programming language you tackle.Features Fun approach to a difficult topic Readers will create games with Python as they learn the fundamentals of this programming language The CD will include games that readers can cut and paste into their own Web site The author provides challenges at the end of chapters to push readers to program on their own.