Master the capabilities of RethinkDB and implement them to develop efficient real-time web applications. The way to better database development is here! About This Book Master the powerful ReQL queries to manipulate your JSON data, Learn how to develop scalable, real-time web applications using RethinkDB and Node.js and deploy them for production, A detailed, step-by-step guide to help you master the concepts of RethinkDB programming with ease Who This Book Is For This book caters to all the real-time application developers looking forward to master their skills using RethinkDB. A basic understanding of RethinkDB and Node.js is essential to get the most out of this book. What You Will Learn Master the web-based management console for data-center configuration (sharding, replication, and more), database monitoring, and testing queries. Run queries using the ReQL language Perform Geospatial queries (such as finding all the documents with locations within 5km of a given point). Deal with time series data, especially across various times zones. Extending the functionality of RethinkDB and integrate it with third party libraries such as ElasticSearch to enhance our search In Detail RethinkDB has a lot of cool things to be excited about: ReQL (its readable,highly-functional syntax), cluster management, primitives for 21st century applications, and change-feeds. This book starts with a brief overview of the RethinkDB architecture and data modeling, and coverage of the advanced ReQL queries to work with JSON documents. Then, you will quickly jump to implementing these concepts in real-world scenarios, by building real-time applications on polling, data synchronization, share market, and the geospatial domain using RethinkDB and Node.js. You will also see how to tweak RethinkDB's capabilities to ensure faster data processing by exploring the sharding and replication techniques in depth. Then, we will take you through the more advanced administration tasks as well as show you the various deployment techniques using PaaS, Docker, and Compose. By the time you have finished reading this book, you would have taken your knowledge of RethinkDB to the next level, and will be able to use the concepts in RethinkDB to develop efficient, real-time applications with ease. Style and approach This book is a unique blend of comprehensive theory and real-world examples to help you master RethinkDB.

Deploy, configure, and run clusters of Docker containers with Swarm About This Book Get to grips with Docker Swarm, one of the key components of the Docker ecosystem. Optimize Swarm and SwarmKit features for scaling massive applications through containers. Learn about Docker’s scheduling tricks, high availability, security, and platform scalability. Who This Book Is For If you are a Linux admin or a Docker user who wants to natively manage Docker clusters, then this is the book for you. What You Will Learn Create and manage Swarm Mode clusters of any size Get a backstage view of the biggest Swarms ever built : Swarm2k and Swarm3k, with their 2,300 and 4,700 nodes Discovery mechanisms and Raft Deploy your containerized app on Swarm Administer Swarm clusters on AWS, Azure, and DigitalOcean Integrate Flocker volumes with Swarm Create and manage Swarms on OpenStack Magnum In Detail Docker Swarm serves as one of the crucial components of the Docker ecosystem and offers a native solution for you to orchestrate containers. It’s turning out to be one of the preferred choices for Docker clustering thanks to its recent improvements. This book covers Swarm, Swarm Mode, and SwarmKit. It gives you a guided tour on how Swarm works and how to work with Swarm. It describes how to set up local test installations and then moves to huge distributed infrastructures. You will be shown how Swarm works internally, what’s new in Swarmkit, how to automate big Swarm deployments, and how to configure and operate a Swarm cluster on the public and private cloud. This book will teach you how to meet the challenge of deploying massive production-ready applications and a huge number of containers on Swarm. You'll also cover advanced topics that include volumes, scheduling, a Libnetwork deep dive, security, and platform scalability. Style and approach A comprehensive guide that covers all aspects of Docker Swarm from setup to customization.

Discover over 125 solution-based recipes to help you build applications for smartphones, tablets, and desktops About This Book Learn to build applications for Windows 10, the latest Windows version Develop your applications to be compatible with smartphones, tablets, and desktops This guide is packed with recipes covering major solutions to day-to-day problems faced by Windows programmers Who This Book Is For The book is dedicated to programmers with various experience of developing applications for Windows-based smartphones, tablets, and desktops—even beginners can find suitable content. What You Will Learn Start developing universal applications for Windows 10 Design user interface in the XAML language Use the MVVM design pattern with data binding Store data in files and in a database Use multimedia content and animations Capture data from built-in sensors Handle various Internet-based scenarios Test the application and submit it to the Windows Store In Detail Need to ensure you can always create the best Windows apps regardless of platformWhat you need are solutions to the biggest issues you can face, so you can always ensure you’re making the right choices and creating the best apps you can. The book starts with recipes that will help you set up the integrated development environment before you go ahead and design the user interface. You will learn how to use the MVVM design pattern together with data binding, as well as how to work with data in different file formats. Moving on, you will explore techniques to add animations and graphics to your application, and enable your solution to work with multimedia content. You will also see how to use sensors, such as an accelerometer and a compass, as well as obtain the current GPS location. You will make your application ready to work with Internet-based scenarios, such as composing e-mails or downloading files, before finally testing the project and submitting it to the Windows Store. By the end of the book, you will have a market-ready application compatible across different Windows devices, including smartphones, tablets, and desktops. Style and approach This quick-start book takes a cookbook format with recipes covering more than 125 solutions to help you create and build applications for Windows 10. The examples presented in the book use the free integrated development environment. A supporting set of codes that present solutions to problems described in particular chapters is available as well.

Combine the incredible powers of Spark, Mesos, Akka, Cassandra, and Kafka to build data processing platforms that can take on even the hardest of your data troubles! About This Book This highly practical guide shows you how to use the best of the big data technologies to solve your response-critical problems Learn the art of making cheap-yet-effective big data architecture without using complex Greek-letter architectures Use this easy-to-follow guide to build fast data processing systems for your organization Who This Book Is For If you are a developer, data architect, or a data scientist looking for information on how to integrate the Big Data stack architecture and how to choose the correct technology in every layer, this book is what you are looking for. What You Will Learn Design and implement a fast data Pipeline architecture Think and solve programming challenges in a functional way with Scala Learn to use Akka, the actors model implementation for the JVM Make on memory processing and data analysis with Spark to solve modern business demands Build a powerful and effective cluster infrastructure with Mesos and Docker Manage and consume unstructured and No-SQL data sources with Cassandra Consume and produce messages in a massive way with Kafka In Detail SMACK is an open source full stack for big data architecture. It is a combination of Spark, Mesos, Akka, Cassandra, and Kafka. This stack is the newest technique developers have begun to use to tackle critical real-time analytics for big data. This highly practical guide will teach you how to integrate these technologies to create a highly efficient data analysis system for fast data processing. We’ll start off with an introduction to SMACK and show you when to use it. First you’ll get to grips with functional thinking and problem solving using Scala. Next you’ll come to understand the Akka architecture. Then you’ll get to know how to improve the data structure architecture and optimize resources using Apache Spark. Moving forward, you’ll learn how to perform linear scalability in databases with Apache Cassandra. You’ll grasp the high throughput distributed messaging systems using Apache Kafka. We’ll show you how to build a cheap but effective cluster infrastructure with Apache Mesos. Finally, you will deep dive into the different aspect of SMACK using a few case studies. By the end of the book, you will be able to integrate all the components of the SMACK stack and use them together to achieve highly effective and fast data processing. Style and approach With the help of various industry examples, you will learn about the full stack of big data architecture, taking the important aspects in every technology. You will learn how to integrate the technologies to build effective systems rather than getting incomplete information on single technologies. You will learn how various open source technologies can be used to build cheap and fast data processing systems with the help of various industry examples

Create beautiful data visualizations and interactive dashboards with Tableau About This Book Delve into the features and functionalities of Tableau from the ground up with this step-by-step guide that has over 50 "follow-me" recipes Build rich visualizations to effectively highlight the underlying trends and patterns in your data Build beautiful interactive dashboards and storyboards to stitch your visualizations together and tell a story Who This Book Is For This book is for anyone who wishes to use Tableau. It will be of use to both beginners who want to learn Tableau from scratch and to more seasoned users who simply want a quick reference guide. This book is a ready reckoner guide for you. The book will be such that both new & existing Tableau users who don’t know, or can’t recall how to perform different Tableau tasks can use the book and be benefited from it. What You Will Learn Get to grips with the Tableau workspace and terminologies and understand what data sources you can connect Learn to create basic charts like bar chart, stacked bar, pie chart, line chart, area chart, tree map & word cloud Go even further with more advanced visualizations such as scatter plot, box & whiskers plot, dual axis, bullet chart, Histograms, Maps, etc Use pre-defined calculation and change its scope and direction to affect outcome Learn to define Parameters and call them into parametric calculations that provide outcomes based on user inputs Build Dashboards and use Actions to link multiple sheets on the dashboard Connect to multiple data sources using Data Blending, Multiple Table Join within the same data source as well as across data sources, Custom SQL and learn to work with data Extracts Compute statistical trends, build forecasting models and use Reference lines for benchmarking In Detail Data is everywhere and everything is data! Visualization of data allows us to bring out the underlying trends and patterns inherent in the data and gain insights that enable faster and smarter decision making. Tableau is one of the fastest growing and industry leading Business Intelligence platforms that empowers business users to easily visualize their data and discover insights at the speed of thought. Tableau is a self-service BI platform designed to make data visualization and analysis as intuitive as possible. Creating visualizations with simple drag-and-drop, you can be up and running on Tableau in no time. Starting from the fundamentals such as getting familiarized with Tableau Desktop, connecting to common data sources and building standard charts; you will walk through the nitty gritty of Tableau such as creating dynamic analytics with parameters, blended data sources, and advanced calculations. You will also learn to group members into higher levels, sort the data in a specific order & filter out the unnecessary information. You will then create calculations in Tableau & understand the flexibility & power they have and go on to building story-boards and share your insights with others. Whether you are just getting started or whether you need a quick reference on a "how-to" question, This book is the perfect companion for you Style and approach This cookbook takes a step-by-step approach and the text systematically evolves to cover more involved functionalities. Every recipe includes illustrative screenshots which provide a detailed visual resource for each step.

Find out everything you need to know to build powerful robots with the most up-to-date ROS About This Book This comprehensive, yet easy-to-follow guide will help you find your way through the ROS framework Successfully design and simulate your 3D robot model and use powerful robotics algorithms and tools to program and set up your robots with an unparalleled experience by using the exciting new features from Robot Kinetic Use the latest version of gazebo simulator, OpenCV 3.0, and C++11 standard for your own algorithms Who This Book Is For This book is suitable for an ROS beginner as well as an experienced ROS roboticist or ROS user or developer who is curious to learn ROS Kinetic and its features to make an autonomous Robot. The book is also suitable for those who want to integrate sensors and embedded systems with other software and tools using ROS as a framework. What You Will Learn Understand the concepts of ROS, the command-line tools, visualization GUIs, and how to debug ROS Connect robot sensors and actuators to ROS Obtain and analyze data from cameras and 3D sensors Use Gazebo for robot/sensor and environment simulation Design a robot and see how to make it map the environment, navigate autonomously, and manipulate objects in the environment using MoveIt! Add vision capabilities to the robot using OpenCV 3.0 Add 3D perception capabilities to the robot using the latest version of PCL In Detail Building and programming a robot can be cumbersome and time-consuming, but not when you have the right collection of tools, libraries, and more importantly expert collaboration. ROS enables collaborative software development and offers an unmatched simulated environment that simplifies the entire robot building process. This book is packed with hands-on examples that will help you program your robot and give you complete solutions using open source ROS libraries and tools. It also shows you how to use virtual machines and Docker containers to simplify the installation of Ubuntu and the ROS framework, so you can start working in an isolated and control environment without changing your regular computer setup. It starts with the installation and basic concepts, then continues with more complex modules available in ROS such as sensors and actuators integration (drivers), navigation and mapping (so you can create an autonomous mobile robot), manipulation, Computer Vision, perception in 3D with PCL, and more. By the end of the book, you’ll be able to leverage all the ROS Kinetic features to build a fully fledged robot for all your needs. Style and approach This book is packed with hands-on examples that will help you program your robot and give you complete solutions using ROS open source libraries and tools. All the robotics concepts and modules are explained and multiple examples are provided so that you can understand them easily.

Master text-taming techniques and build effective text-processing applications with R About This Book Develop all the relevant skills for building text-mining apps with R with this easy-to-follow guide Gain in-depth understanding of the text mining process with lucid implementation in the R language Example-rich guide that lets you gain high-quality information from text data Who This Book Is For If you are an R programmer, analyst, or data scientist who wants to gain experience in performing text data mining and analytics with R, then this book is for you. Exposure to working with statistical methods and language processing would be helpful. What You Will Learn Get acquainted with some of the highly efficient R packages such as OpenNLP and RWeka to perform various steps in the text mining process Access and manipulate data from different sources such as JSON and HTTP Process text using regular expressions Get to know the different approaches of tagging texts, such as POS tagging, to get started with text analysis Explore different dimensionality reduction techniques, such as Principal Component Analysis (PCA), and understand its implementation in R Discover the underlying themes or topics that are present in an unstructured collection of documents, using common topic models such as Latent Dirichlet Allocation (LDA) Build a baseline sentence completing application Perform entity extraction and named entity recognition using R In Detail Text Mining (or text data mining or text analytics) is the process of extracting useful and high-quality information from text by devising patterns and trends. R provides an extensive ecosystem to mine text through its many frameworks and packages. Starting with basic information about the statistics concepts used in text mining, this book will teach you how to access, cleanse, and process text using the R language and will equip you with the tools and the associated knowledge about different tagging, chunking, and entailment approaches and their usage in natural language processing. Moving on, this book will teach you different dimensionality reduction techniques and their implementation in R. Next, we will cover pattern recognition in text data utilizing classification mechanisms, perform entity recognition, and develop an ontology learning framework. By the end of the book, you will develop a practical application from the concepts learned, and will understand how text mining can be leveraged to analyze the massively available data on social media. Style and approach This book takes a hands-on, example-driven approach to the text mining process with lucid implementation in R.

SAFE AT HOME Leah Murphy just wants to feel safe again after a violent break-in. Moving to Blue Falls, Texas, is the first step. Renting the bunkhouse from rancher Tyler Lowe is the second. But Leah is uneasy around the handsome cowboy, despite his kindness. Tyler knows all too well how difficult it is to rebuild trust. He’s trying to help his young niece heal from her own dark memories. When he sees how Maddie responds to Leah, he can’t help feeling grateful—and attracted to the beautiful woman. He knows he has to move slowly to win Leah’s heart, but he also knows she’s worth the wait.

New York Times bestseller Carla Cassidy kicks off another gripping Colton romance in cowboy country! After years in hiding, Josie Colton has her life back. But to settle a family promise, she must find an old clue buried at the Colton Valley Ranch. She enlists the help of ranch foreman Tanner Grange—in exchange for working as his twin toddlers’ new nanny. On their search, the single dad soon begins to lasso Josie’s heart. Tanner agrees to assist Josie and is alarmed how the Colton beauty fits so perfectly into his life. He’s got his lands full investigating the disappearance of his boss and caring for his little girls. When it’s clear someone will kill to stop Josie from uncovering the clue, Tanner vows to protect her…for life!

How to Melt a Frozen Heart A kiss to warm the heart… Since his wife’s death, architect Brendan Grant's heart has been in the deep freeze, iced up and inpenetrable. Until a sick cat brings him reluctantly to Nora Anderson’s door. Nora has a reputation for mending broken creatures, but Brendan wonders if her healing touch works on people too. For spending time with Nora and her orphaned nephew is defrosting his defences. But Nora is like a lioness protecting the new life she has struggled to create for herself and her nephew. She won’t let just anyone past the threshold… The Man Behind the Pinstripes Becca Taylor has worked hard to overcome her troubled past and start a new life. But when Caleb Fairchild marches into her life, the instant attraction between them is the last thing she needs! CEO Caleb learnt the heard way not to suffer fools and to be careful of whom to trust. Why should Becca, gorgeous as she is, be any different? But he can't help but be drawn to her; to want to get close to her. So when her secrets are blown out into the open, betrayal seems inevitable. Unlessthe truth can start to crack the iron walls he's built around his heart… Falling for Mr Mysterious Betrayed by her cheating boyfriend, Emily Silver rushes to the refuge of her cousin’s city apartment. Only he’s away, and she’s greeted by his friend Jude Marlowe. Crime writer Jude is as mysterious as the novels he writes…and though she fights it, Emily can’t help but be intrigued. For beneath his remoteness lies a man whose eyes reveal a world of pain. Jude has a secret. And the more he falls for Emily, the more he knows he shouldn’t. For he may not be able to offer Emily the lifetime together that they both deserve…

New York Times bestselling author Linda Goodnight welcomes you back home to Honey Ridge, Tennessee, with another beautiful story full of hope, haunting mystery, and the power to win your heart Renowned yet private, thriller writer Hayden Winters lives a life colored by lies. Deeply ashamed of his past, his hunger for an honest relationship and dreams of starting a family remain unsatisfied, and he can trust no one with his secrets. He’s determined to outrun his personal demons, but the charming old Peach Orchard Inn and a woman whose presence is as gentle as a sparrow’s song stops him in his tracks. Carrie Riley is afraid of everything from flying to thunderstorms, and pretty much of life itself. But meeting the enigmatic writer staying at the inn emboldens her to learn everything about him. When they discover a vulnerable boy hiding at the inn, Hayden is compelled to help Carrie protect him. Soon they’re led to a centuries-old mystery that haunts Hayden's sleep, and his only safe haven is Carrie. As the secrets of the past and present cause their lives to become entwined, all that’s left to come to light is love―if the grim truth doesn't tear them apart first.

Between an Idaho snowstorm and a killer on the loose, this cowboy has his work cut out for him Ever since beautifiul city-girl Sierra Hyde arrived on his doorstep, Pike Hastings’s quiet Idaho ranch life has become a chaotic swirl of deception, murder—and unbelievable attraction. Sierra, who’s a much better private investigator than country girl, needs Pike’s help to unravel the truth behind too many mysteries. As the evidence builds, this rugged cowboy finds himself willing to do whatever it takes to both keep Sierra safe and convince her to stay by his side. But trying to tame her independent spirit is harder than wrangling a calf. Though not as hard as it'll be to get her out of his heart when she no longer needs his protection…

A Texas Ranger with everything to lose… Going undercover to keep the former wife of a Texas crime boss alive is risky business for Texas Ranger Bryce Johnson. Kylie Scott may have evidence that could put her ex-husband’s family away forever. If she lives long enough to testify. For five years, Kylie managed to stay off the mob’s radar. With her cover blown, the former model is forced to flee the close-knit community that had embraced her. On the run again–this time with the seductive lawman who’s risking his career to protect her–Kylie battles her powerful desire for Bryce. If they survive, do they stand a snowball’s chance at a future together?

A castle to call home… After years in foster care, Jo Conaill has never settled anywhere. Travelling to Ireland to claim a surprise inheritance – a castle! – is a chance to reconnect with her past. And when she’s rescued by handsome landowner Finn, their sizzling chemistry is undeniable… Except Finn turns out to be Lord of Glenconaill, who she must share her inheritance with! Jo has no plans to stay, but living in the castle with gorgeous Finn is an unexpected temptation. Has she found the home she’s always craved in Finn’s arms…?

FROM SUMMER LOVE . . . TO FOREVER FAMILY? In all her life, Izzy Lambert has only told one lie–fourteen years ago. Now that her teenage summer love is back in town she's on a mission to cover it up. But how do you hide a gangly fourteen-year-old boy? Years ago, when golden boy Nate Thayer left Thunder Ridge, he never looked back. Izzy was from the wrong side of the tracks and they weren't ready to be parents to their unborn baby. Adoption was the answer. Now Nate's back home and seeing Izzy is like pouring gasoline on a fire that never died. But an even bigger surprise awaits him–finding out she wasn't the only one he left behind….

He was a man of action—especially when it came to protecting his new undercover partner… At ninenteen, Andrea Gordon's life was forever changed. After proving herself instrumental in a bank hostage crisis, she became one of Omega Sector's top agents. Four years later, her skill at reading people is unrivaled—until she meets fellow profiler Brandon Han. Paired together to track a serial killer who has been targeting at-risk women, the two become entangled beyond the case. Their mutual attraction deepens as they get closer to the truth. But when Andrea's own sordid past surfaces, they will both be forced to question everything about the assignment…and each other.

HER ROCKY MOUNTAIN BODYGUARD Nannying six children was supposed to be the toughest part of Lexie DeMille’s new job. Then their massive Aspen residence was attacked and it was clear someone had a very personal vendetta to settle. A job that required TST Security and its best bodyguard, Mason Steele. His focus should only have been on securing the remote mountain hideaway. But unraveling Lexie’s secrets became critical to the case and to his own private agenda. Under a veneer of domesticity was a Marine brat with more survival skills than your average nanny. Something about her had driven her assailant into a violent rage. And that same thing blurred the parameters of Mason’s detail–and would test his every survival instinct.

Sometimes the only way to forgiveness is sin… Sean Dryden—the superhot all-American golden boy—has always gotten under Kentucky Lee’s skin. She can’t remember a time when she wasn’t in love with the Special Ops Aviation pilot…even when he got engaged to her best friend. What Kentucky never knew is that Sean broke it off with Lynnie just a week before she died. Something has come apart in Sean—too many missions, too much loss. Only Kentucky seems to understand him…and the undercurrent running between them is tangible. That need to touch and taste—to remind themselves they’re still alive. Can the fire in her warm his frozen heart?

Lovers at long last? Behind her good-girl fa?ade, Camille Ryan harboured a secret desire to write erotic romances. When one of her racy stories fell into the wrong hands, she had no choice but to flee her bible-thumping Georgia town. Now her father’s unexpected health scare turns her world upside down and brings the pseudonymous author back home to Fairdell—and to the man she sacrificed her happiness to protect. Remington Krane never got over losing Camille. When he shows up on her doorstep demanding answers, desire once again ignites, culminating in a night of passion they’ve waited years to fulfil. Camille fears the scandalous truth could ruin the business scion’s mayoral bid. But when another woman orchestrates a campaign that could sabotage his second chance with Camille, it’s Remi’s turn to give up everything—except the woman he loves.

Forbidden to the A-lister When Grace Watson last saw Liam Carter, she was in black lingerie and a trench coat at his door, while he gently—mortifyingly!—turned her down. Now Liam is Hollywood’s hottest property and Grace is the top physical therapist he needs to literally get him back on his feet. Grace tempted him then and she tempts him even more now. As her kindness banishes the demons that have always haunted him, is it possible that their second chance can heal his damaged heart? The Hollywood Hills Clinic Where doctors to the stars work miracles by day— and explore their hearts' desires by night…

The billionaire bachelor’s baby! When party planner Eliza Dunne meets billionaire Jake Marlow at a wedding, she decides to finally give into the sparks that have always fizzed between them! The connection is so intense that Jake can’t resist Eliza – but with the divorce only just final after his unhappy marriage, he’s not ready for anything serious. But when Eliza tells him her shocking news – she’s pregnant with his baby! – he has one certainty: he wants to be at the centre of his new family, as a husband and father…