Node.js Design Patterns. Design and implement production-grade Node.js applications using proven patterns and techniques - Third Edition

Mario Casciaro, Luciano Mammino

In this book, we will show you how to implement a series of best practices and design patterns to help you create efficient and robust Node.js applications with ease.We kick off by exploring the basics of Node.js, analyzing its asynchronous event driven architecture and its fundamental design patterns. We then show you how to build asynchronous control flow patterns with callbacks, promises and async/await. Next, we dive into Node.js streams, unveiling their power and showing you how to use them at their full capacity. Following streams is an analysis of different creational, structural, and behavioral design patterns that take full advantage of JavaScript and Node.js. Lastly, the book dives into more advanced concepts such as Universal JavaScript, scalability and messaging patterns to help you build enterprise-grade distributed applications.Throughout the book, you’ll see Node.js in action with the help of several real-life examples leveraging technologies such as LevelDB, Redis, RabbitMQ, ZeroMQ, and many others. They will be used to demonstrate a pattern or technique, but they will also give you a great introduction to the Node.js ecosystem and its set of solutions.

Mastering ROS for Robotics Programming. Best practices and troubleshooting solutions when working with ROS - Third Edition

Lentin Joseph, Jonathan Cacace

The Robot Operating System (ROS) is a software framework used for programming complex robots. ROS enables you to develop software for building complex robots without writing code from scratch, saving valuable development time. Mastering ROS for Robotics Programming provides complete coverage of the advanced concepts using easy-to-understand, practical examples and step-by-step explanations of essential concepts that you can apply to your ROS robotics projects.The book begins by helping you get to grips with the basic concepts necessary for programming robots with ROS. You'll then discover how to develop a robot simulation, as well as an actual robot, and understand how to apply high-level capabilities such as navigation and manipulation from scratch. As you advance, you'll learn how to create ROS controllers and plugins and explore ROS's industrial applications and how it interacts with aerial robots. Finally, you'll discover best practices and methods for working with ROS efficiently.By the end of this ROS book, you'll have learned how to create various applications in ROS and build your first ROS robot.

The Applied Data Science Workshop. Get started with the applications of data science and techniques to explore and assess data effectively - Second Edition

Alex Galea

From banking and manufacturing through to education and entertainment, using data science for business has revolutionized almost every sector in the modern world. It has an important role to play in everything from app development to network security.Taking an interactive approach to learning the fundamentals, this book is ideal for beginners. You’ll learn all the best practices and techniques for applying data science in the context of real-world scenarios and examples.Starting with an introduction to data science and machine learning, you’ll start by getting to grips with Jupyter functionality and features. You’ll use Python libraries like sci-kit learn, pandas, Matplotlib, and Seaborn to perform data analysis and data preprocessing on real-world datasets from within your own Jupyter environment. Progressing through the chapters, you’ll train classification models using sci-kit learn, and assess model performance using advanced validation techniques. Towards the end, you’ll use Jupyter Notebooks to document your research, build stakeholder reports, and even analyze web performance data.By the end of The Applied Data Science Workshop, you’ll be prepared to progress from being a beginner to taking your skills to the next level by confidently applying data science techniques and tools to real-world projects.

Machine Learning: Make Your Own Recommender System. Build Your Recommender System with Machine Learning Insights

Oliver Theobald

With an introductory overview, the course prepares you for a deep dive into the practical application of Scikit-Learn and the datasets that bring theories to life. From the basics of machine learning to the intricate details of setting up a sandbox environment, this course covers the essential groundwork for any aspiring data scientist.The course focuses on developing your skills in working with data, implementing data reduction techniques, and understanding the intricacies of item-based and user-based collaborative filtering, along with content-based filtering. These core methodologies are crucial for creating accurate and efficient recommender systems that cater to the unique preferences of users. Practical examples and evaluations further solidify your learning, making complex concepts accessible and manageable.The course wraps up by addressing the critical topics of privacy, ethics in machine learning, and the exciting future of recommender systems. This holistic approach ensures that you not only gain technical proficiency but also consider the broader implications of your work in this field. With a final look at further resources, your journey into machine learning and recommender systems is just beginning, armed with the knowledge and tools to explore new horizons.

Cassandra High Availability. Harness the power of Apache Cassandra to build scalable, fault-tolerant, and readily available applications

Robbie Strickland

Build and Code Creative Robots with LEGO BOOST. Unleash your creativity and imagination by building exciting robotics projects

Ashwin Shah, Mr. Manoj Patel

LEGO BOOST is a feature-rich creative toolbox that helps kids to develop science, technology, engineering, and mathematics (STEM) skills in a fun way. The LEGO BOOST kit consists of motors, sensors, and more than 840 LEGO pieces to bring various multifunctional robots to life. This book will take you on an interesting and enjoyable journey where you will have fun building robots while developing your problem-solving and logical thinking skills.This book is an end-to-end guide that will take you from a beginner to expert level of robot building with LEGO BOOST and Scratch. Starting with the unboxing and a brief introduction to LEGO BOOST, you'll quickly get your first robotic model up and running. You'll understand how to use the electronic and non-electronic components and have fun building a range of intriguing robotics projects with increasing complexity and advanced functionality. Throughout the book, you'll work on a variety of amazing projects, such as building your own R2D2, a fictional character from Star Wars, that will pique your curiosity to learn robotics and help you explore the full potential of the LEGO BOOST kit. Once you've had fun working with the projects, you'll be introduced to an interesting challenge for you to solve by yourself!By the end of this book, you'll have gained the skills to build creative robotics projects with the LEGO BOOST creative toolbox, and have built on your logical thinking and problem-solving skills.

Moodle 1.9 Theme Design: Beginner's Guide. Customize the appearance of your Moodle Theme using its powerful theming engine

Paul James Gadsdon, Moodle Trust, Paul Gadsdon

Moodle is a highly extensible virtual learning environment and is used to deliver online teaching and training materials. Theming is one of the main features of Moodle that can be used to customize your online courses and make them look exactly how you want them to. If you have been looking for a book that will help you develop Moodle Themes that you are proud of, and that your students would enjoy, then this is the book for you.This book will show you how to create themes for Moodle, change pre-installed Moodle themes, and download new themes from various resources on the Internet. It is filled with suggestions and examples for adapting classroom activities to the Virtual Learning Environment.This book starts off by introducing Moodle, explaining what it is, how it works, and what tools you might need to create a stunning Moodle theme. It then moves on to show you in detailed steps how to choose and change a Moodle theme, and explains what Moodle themes are and how they work. It shows you how to change an existing theme and test the changes that you have made.The latter half of this book will start you off on the road to creating your own themes from scratch. It provides detailed instructions to guide you through the stages of creating a stunning theme for your Moodle site. From planning theme creation, through to the slicing and dicing, and more advanced Moodle theming processes, this book will give you step-by-step instructions to create your own Moodle theme.

Learn LLVM 12. A beginner's guide to learning LLVM compiler tools and core libraries with C++

Kai Nacke

LLVM was built to bridge the gap between compiler textbooks and actual compiler development. It provides a modular codebase and advanced tools which help developers to build compilers easily. This book provides a practical introduction to LLVM, gradually helping you navigate through complex scenarios with ease when it comes to building and working with compilers.You’ll start by configuring, building, and installing LLVM libraries, tools, and external projects. Next, the book will introduce you to LLVM design and how it works in practice during each LLVM compiler stage: frontend, optimizer, and backend. Using a subset of a real programming language as an example, you will then learn how to develop a frontend and generate LLVM IR, hand it over to the optimization pipeline, and generate machine code from it. Later chapters will show you how to extend LLVM with a new pass and how instruction selection in LLVM works. You’ll also focus on Just-in-Time compilation issues and the current state of JIT-compilation support that LLVM provides, before finally going on to understand how to develop a new backend for LLVM.By the end of this LLVM book, you will have gained real-world experience in working with the LLVM compiler development framework with the help of hands-on examples and source code snippets.