Informatyka
Raphael Rafatpanah, Bruno Joseph D'mello
ReasonML, also known as Reason, is a new syntax and toolchain for OCaml that was created by Facebook and is meant to be approachable for web developers. Although OCaml has several resources, most of them are from the perspective of systems development. This book, alternatively, explores Reason from the perspective of web development.You'll learn how to use Reason to build safer, simpler React applications and why you would want to do so. Reason supports immutability by default, which works quite well in the context of React.In learning Reason, you will also learn about its ecosystem – BuckleScript, JavaScript interoperability, and various npm workflows. We learn by building a real-world app shell, including a client-side router with page transitions, that we can customize for any Reason project. You'll learn how to leverage OCaml's excellent type system to enforce guarantees about business logic, as well as preventing runtime type errors.You'll also see how the type system can help offload concerns that we once had to keep in our heads.We'll explore using CSS-in-Reason, how to use external JSON in Reason, and how to unit-test critical business logic. By the end of the book, you'll understand why Reason is exploding in popularity and will have a solid foundation on which to continue your journey with Reason.
Simeon Kostadinov
Developers struggle to find an easy-to-follow learning resource for implementing Recurrent Neural Network (RNN) models. RNNs are the state-of-the-art model in deep learning for dealing with sequential data. From language translation to generating captions for an image, RNNs are used to continuously improve results. This book will teach you the fundamentals of RNNs, with example applications in Python and the TensorFlow library. The examples are accompanied by the right combination of theoretical knowledge and real-world implementations of concepts to build a solid foundation of neural network modeling.Your journey starts with the simplest RNN model, where you can grasp the fundamentals. The book then builds on this by proposing more advanced and complex algorithms. We use them to explain how a typical state-of-the-art RNN model works. From generating text to building a language translator, we show how some of today's most powerful AI applications work under the hood.After reading the book, you will be confident with the fundamentals of RNNs, and be ready to pursue further study, along with developing skills in this exciting field.
Red Hat Enterprise Linux 8 Essentials. Learn to install, administer and deploy RHEL 8 systems
Neil Smyth
Red Hat Enterprise Linux 8 is one of the most secure and dependable operating systems available. For this reason, the ambitious system or network engineer will find a working knowledge of Red Hat Enterprise 8 to be an invaluable advantage in their respective fields. This book, now updated for RHEL 8.1, begins with a history of Red Enterprise Linux and its installation. You will be virtually perform remote system administration tasks with cockpit web interface and write shell scripts to maintain server-based systems without desktop installation. Then, you will set up a firewall system using a secure shell and enable remote access to Gnome desktop environment with virtual network computing (VNC). You’ll share files between the Red Hat Enterprise Linux 8 (RHEL 8) and Windows System using Samba client and NFS. You will also run multiple guest operating systems using virtualization and Linux containers, and host websites using RHEL 8 by installing an Apache web server. Finally, you will create logical disks using logical volume management and implement swap space to maintain the performance of a RHEL 8 system. By the end of this book, you will be armed with the skills and knowledge to install the RHEL 8 operating system and use it expertly.
Pablo Iranzo Gómez, Pedro Ibanez Requena, Miguel...
With Red Hat Enterprise Linux 9 becoming the standard for enterprise Linux used from data centers to the cloud, Linux administration skills are in high demand. With this book, you’ll learn how to deploy, access, tweak, and improve enterprise services on any system on any cloud running Red Hat Enterprise Linux 9.Throughout the book, you’ll get to grips with essential tasks such as configuring and maintaining systems, including software installation, updates, and core services. You’ll also understand how to configure the local storage using partitions and logical volumes, as well as assign and deduplicate storage. You’ll learn how to deploy systems while also making them secure and reliable.This book provides a base for users who plan to become full-time Linux system administrators by presenting key command-line concepts and enterprise-level tools, along with essential tools for handling files, directories, command-line environments, and documentation for creating simple shell scripts or running commands. With the help of command line examples and practical tips, you’ll learn by doing and save yourself a lot of time.By the end of the book, you’ll have gained the confidence to manage the filesystem, users, storage, network connectivity, security, and software in RHEL 9 systems on any footprint.
Red Hat Enterprise Linux Server Cookbook. Click here to enter text
William Leemans
Dominating the server market, the Red Hat Enterprise Linux operating system gives you the support you need to modernize your infrastructure and boost your organization’s efficiency. Combining both stability and flexibility, RHEL helps you meet the challenges of today and adapt to the demands of tomorrow.This practical Cookbook guide will help you get to grips with RHEL 7 Server and automating its installation. Designed to provide targeted assistance through hands-on recipe guidance, it will introduce you to everything you need to know about KVM guests and deploying multiple standardized RHEL systems effortlessly. Get practical reference advice that will make complex networks setups look like child’s play, and dive into in-depth coverage of configuring a RHEL system. Also including full recipe coverage of how to set up, configuring, and troubleshoot SELinux, you’ll also discover how secure your operating system, as well as how to monitor it.
Benjamin Cane
Red Hat Enterprise Linux is an operating system that allows you to modernize your infrastructure, boost efficiency through virtualization, and finally prepare your data center for an open, hybrid cloud IT architecture. It provides the stability to take on today's challenges and the flexibility to adapt to tomorrow's demands.In this book, you begin with simple troubleshooting best practices and get an overview of the Linux commands used for troubleshooting. The book will cover the troubleshooting methods for web applications and services such as Apache and MySQL. Then, you will learn to identify system performance bottlenecks and troubleshoot network issues; all while learning about vital troubleshooting steps such as understanding the problem statement, establishing a hypothesis, and understanding trial, error, and documentation. Next, the book will show you how to capture and analyze network traffic, use advanced system troubleshooting tools such as strace, tcpdump & dmesg, and discover common issues with system defaults.Finally, the book will take you through a detailed root cause analysis of an unexpected reboot where you will learnto recover a downed system.
Redis 4.x Cookbook. Over 80 hand-picked recipes for effective Redis development and administration
Pengcheng Huang, Zuofei Wang
Redis is considered the world's most popular key-value store database. Its versatility and the wide variety of use cases it enables have made it a popular choice of database for many enterprises. Based on the latest version of Redis, this book provides both step-by-step recipes and relevant the background information required to utilize its features to the fullest. It covers everything from a basic understanding of Redis data types to advanced aspects of Redis high availability, clustering, administration, and troubleshooting. This book will be your great companion to master all aspects of Redis.The book starts off by installing and configuring Redis for you to get started with ease. Moving on, all the data types and features of Redis are introduced in detail. Next, you will learn how to develop applications with Redis in Java, Python, and the Spring Boot web framework. You will also learn replication tasks, which will help you to troubleshoot replication issues. Furthermore, you will learn the steps that need to be undertaken to ensure high availability on your cluster and during production deployment. Toward the end of the book, you will learn the topmost tasks that will help you to troubleshoot your ecosystem efficiently, along with extending Redis by using different modules.
Luigi Fugaro, Mirko Ortensi
In modern applications, efficiency in both operational and analytical aspects is paramount, demanding predictable performance across varied workloads. This book introduces you to Redis Stack, an extension of Redis and guides you through its broad data modeling capabilities. With practical examples of real-time queries and searches, you’ll explore Redis Stack’s new approach to providing a rich data modeling experience all within the same database server.You’ll learn how to model and search your data in the JSON and hash data types and work with features such as vector similarity search, which adds semantic search capabilities to your applications to search for similar texts, images, or audio files. The book also shows you how to use the probabilistic Bloom filters to efficiently resolve recurrent big data problems. As you uncover the strengths of Redis Stack as a data platform, you’ll explore use cases for managing database events and leveraging introduce stream processing features. Finally, you’ll see how Redis Stack seamlessly integrates into microservices architectures, completing the picture.By the end of this book, you’ll be equipped with best practices for administering and managing the server, ensuring scalability, high availability, data integrity, stored functions, and more.
Aleksandar Pavic, Shamasis Bhattacharya
In a variety of online project management tools, Redmine markets itself as offering flexibility. Choosing the right management tool can mean the difference between the success and failure of a project. Flexible project management tools bend themselves to fit your needs, whether that’s communication regarding a simple project, or collaboration, or more complex project methodology such as SCRUM, or an issue-code relationship, or the need of different methodology for your project. Whether you are project manager or system administrator, this book provides valuable recipes to get the best possible performance out of your team, organization, infrastructure, and Redmine itself. Through a series of carefully crafted recipes covering the nitty-gritty of Redmine, you’ll be guided through the installation of Redmine, as well as how to fine-tune and customize your Redmine installation. Finally, we walk you through integrating Redmine with other softwares and databases like Tortoise SVN and Visual Studio and troubleshooting Redmine.
Refactoring in Java. Improving code design and maintainability for Java developers
Stefano Violetta
Refactoring in Java serves as an indispensable guide to enhancing your codebase’s quality and maintainability.The book begins by helping you get to grips with refactoring fundamentals, including cultivating good coding habits and identifying red flags. You’ll explore testing methodologies, essential refactoring techniques, and metaprogramming, as well as designing a good architecture. The chapters clearly explain how to refactor and improve your code using real-world examples and proven techniques. Part two equips you with the ability to recognize code smells, prioritize tasks, and employ automated refactoring tools, testing frameworks, and code analysis tools. You’ll discover best practices to ensure efficient code improvement so that you can navigate complexities with ease. In part three, the book focuses on continuous learning, daily practices enhancing coding proficiency, and a holistic view of the architecture. You’ll get practical tips to mitigate risks during refactoring, along with guidance on measuring impact to ensure that you become an efficient software craftsperson.By the end of this book, you’ll be able to avoid unproductive programming or architecturing, detect red flags, and propose changes to improve the maintainability of your codebase.
Refactoring with C++. Explore modern ways of developing maintainable and efficient applications
Dmitry Danilov
Despite the prevalence of higher-level languages, C++ is still running the world, from bare-metal embedded systems to distributed cloud-native systems. C++ is on the frontline whenever there is a need for a performance-sensitive tool supporting complex data structures. The language has been actively evolving for the last two decades.This book is a comprehensive guide that shows you how to implement SOLID principles and refactor legacy code using the modern features and approaches of C++, the standard library, Boost library collection, and Guidelines Support Library by Microsoft. The book begins by describing the essential elements of writing clean code and discussing object-oriented programming in C++. You’ll explore the design principles of software testing with examples of using popular unit testing frameworks such as Google Test. The book also guides you through applying automated tools for static and dynamic code analysis using Clang Tools.By the end of this book, you’ll be proficient in applying industry-approved coding practices to design clean, sustainable, and readable real-world C++ code.
Matt Eland, Steve Smith
Software projects start as brand-new greenfield projects, but invariably become muddied in technical debt far sooner than you’d expect. In Refactoring with C#, you'll explore what technical debt is and how it arises before walking through the process of safely refactoring C# code using modern tooling in Visual Studio and more recent C# language features using C# 12 and .NET 8. This book, written by a Microsoft MVP, will guide you through the process of refactoring safely through advanced unit testing with XUnit and libraries like Moq, Snapper, and Scientist .NET. You'll explore maintainable code through SOLID principles and defensive coding techniques made possible in newer versions of C#. You'll also find out how to run code analysis and write custom Roslyn analyzers to detect and resolve issues unique to your code.The nature of coding is changing, and you'll explore how to use AI with the GitHub Copilot Chat to refactor, test, document, and generate code before ending with a discussion about communicating technical debt to leadership and getting organizational buy-in to refactor your code in enterprise organizations and in agile teams.By the end of this book, you'll understand the nature of refactoring and see how you can safely, effectively, and repeatably pay down the technical debt in your application while adding value to your business.
Brian Rossney, Ciaran Kavanagh
MetaHuman Creator (MHC) is an online, user-friendly 3D design tool for creating highly realistic digital humans that can be animated within Unreal Engine (UE) and enhanced with motion capture technology. This means that filmmakers and game developers now have access to a high quality, affordable solution that was previously only available to specialist studios.This book will focus on using UE5 and MHC from a filmmaker angle. Firstly, you’ll understand how to use the online MHC to create a digital character, changing its facial structure, body type, and clothing. After that, you’ll learn all the necessary steps to bring the character into UE5 and set it up for animation. Then, using an iPhone and a webcam to capture face and body movements, you’ll mix these motion capture files, refine the animations using the MetaHuman Control Rig, and save these takes to be reused and edited again within the Level Sequencer. On top of that, you’ll learn how to create a rendered video file for film production using both the Level Sequencer and a VR Cinematic Camera. By the end of this book, you’ll have created your own MetaHuman character, as well as face and body motion capture data, and learned the necessary skills to give your future projects further realism and creative control.
Sayon Dutta
Reinforcement learning (RL) allows you to develop smart, quick and self-learning systems in your business surroundings. It's an effective method for training learning agents and solving a variety of problems in Artificial Intelligence - from games, self-driving cars and robots, to enterprise applications such as data center energy saving (cooling data centers) and smart warehousing solutions.The book covers major advancements and successes achieved in deep reinforcement learning by synergizing deep neural network architectures with reinforcement learning. You'll also be introduced to the concept of reinforcement learning, its advantages and the reasons why it's gaining so much popularity. You'll explore MDPs, Monte Carlo tree searches, dynamic programming such as policy and value iteration, and temporal difference learning such as Q-learning and SARSA. You will use TensorFlow and OpenAI Gym to build simple neural network models that learn from their own actions. You will also see how reinforcement learning algorithms play a role in games, image processing and NLP.By the end of this book, you will have gained a firm understanding of what reinforcement learning is and understand how to put your knowledge to practical use by leveraging the power of TensorFlow and OpenAI Gym.
Dipti Chhatrapati, Dipti Chhatrapati, Bjoern Rapp
Adnan Masood, Heather Dawe, Ed Price, Dr....
Responsible AI in the Enterprise is a comprehensive guide to implementing ethical, transparent, and compliant AI systems in an organization. With a focus on understanding key concepts of machine learning models, this book equips you with techniques and algorithms to tackle complex issues such as bias, fairness, and model governance. Throughout the book, you’ll gain an understanding of FairLearn and InterpretML, along with Google What-If Tool, ML Fairness Gym, IBM AI 360 Fairness tool, and Aequitas. You’ll uncover various aspects of responsible AI, including model interpretability, monitoring and management of model drift, and compliance recommendations. You’ll gain practical insights into using AI governance tools to ensure fairness, bias mitigation, explainability, privacy compliance, and privacy in an enterprise setting. Additionally, you’ll explore interpretability toolkits and fairness measures offered by major cloud AI providers like IBM, Amazon, Google, and Microsoft, while discovering how to use FairLearn for fairness assessment and bias mitigation. You’ll also learn to build explainable models using global and local feature summary, local surrogate model, Shapley values, anchors, and counterfactual explanations.By the end of this book, you’ll be well-equipped with tools and techniques to create transparent and accountable machine learning models.
Responsive Web Design. Modernizacja witryny
Inayaili de León
Projektowanie responsywnych stron WWW (ang. Responsive Web Design) jest koniecznością. Wynika to z rosnącej liczby przeróżnych urządzeń mobilnych, wykorzystywanych przez rzeszę użytkowników. Nowoczesne podejście do RWD wymaga zmiany sposobu myślenia. Utrzymywanie oddzielnych wersji witryny jest nieefektywne. Zamiast tego należy utworzyć jeden, spójny i responsywny projekt strony. Na takiej stronie cały układ będzie ulegał płynnym przekształceniom, aby zapewnić komfort przeglądania niezależnie od wymiarów wyświetlacza. Oczywiście dotyczy to również stron istniejących, które powinny zostać zmodernizowane. Niniejsza książka jest przeznaczona dla osób, które planują zmodernizowanie swojej witryny w celu zapewnienia jej responsywności. Przedstawiono tu mnóstwo praktycznych wskazówek pozwalających na wdrożenie nowej wersji witryny, nawet gdy brakuje czasu i środków. Dowiesz się, jak rozplanować adaptację projektów i wzorców przy różnych breakpointach oraz jak zadbać o responsywność obrazów. Opisano tu takie techniki, jak przekształcanie siatek stałych w siatki płynne, stosowanie komponentów wielokrotnego użytku, korzystanie z zapytań medialnych. Pokazano, jak korzystać z przydatnych wzorców projektowych, na przykład wzorców nawigacji. Dzięki tej praktycznej książce zmodernizowanie witryny będzie o wiele łatwiejsze i... mniej stresujące! Niektóre zagadnienia omówione w książce: realistyczne planowanie modernizacji i tworzenie harmonogramu prac analiza treści witryny przed jej przeprojektowaniem zarządzanie wrażeniami użytkownika (UX, z ang. User Experiences) domieszki, funkcje i arkusze stylów testowanie modernizowanej witryny i jej publikacja Czy Twoja strona jest już responsywna? Inayaili de León zajmuje się projektowaniem witryn WWW od 2003 r. Obecnie pracuje w Canonical, firmie rozwijającej system Ubuntu, gdzie doskonali narzędzia do projektowania graficznego online. Znakiem firmowym de León są eleganckie, przyjazne użytkownikowi projekty stron. Jest również pisarką, autorką licznych artykułów, publikowanych m.in. w A List Apart, 24 Ways, Smashing Magazine i .net Magazine, oraz bloga Web Designer Notebook (https://webdesignernotebook.com). Inayaili de León mieszka w swoim ulubionym mieście — Londynie. Uwielbia koty i leniwe drzemki.
Responsive Web Design. Nowoczesne strony WWW na przykładach
Frahaan Hussain
Aplikacje internetowe, które dobrze działają i ładnie wyglądają wyłącznie na ekranach komputerów osobistych, już jakiś czas temu zostały uznane za przestarzałe. Przejrzysty blog, piękna strona z portfolio czy ciekawy profil z galerią zdjęć w portalu społecznościowym muszą doskonale wyglądać na urządzeniach z ekranami o rozmaitych rozmiarach i proporcjach oraz różnej rozdzielczości. Wzrost liczby urządzeń wyposażanych w przeglądarki jest jednym z sygnałów, że internet się zmienia. Projekty responsywne są odpowiedzią na tego rodzaju zmiany. Projektant aplikacji, który ma ambicję podążać za wymogami współczesnego internetu, musi sprawnie realizować takie projekty. Ta książka jest szybkim i przystępnym przewodnikiem, dzięki któremu zdobędziesz wiedzę o sposobach włączania responsywności do procesu projektowania i budowania różnorodnych aplikacji. Opanujesz również dobre praktyki tworzenia stron WWW oraz ogólne zasady poprawnego programowania. Poszczególne przykłady bazują na powszechnie znanych technologiach i językach, takich jak HTML, CSS i JavaScript, a także na coraz popularniejszym frameworku Bootstrap. Prędko wykorzystasz obfitość zawartej tu wiedzy o wszelkich aspektach responsywności oraz o korzystaniu z Bootstrapa w projektach i programowaniu aplikacji WWW. Nauczysz się też dobierać frameworki najlepiej pasujące do specyfiki aktualnie tworzonego projektu. W efekcie Twoje strony staną się profesjonalne, kreatywne i prawdziwie responsywne. Dzięki tej książce: dowiesz się, dlaczego obecnie strony powinny być tworzone jako responsywne nauczysz się personalizować frameworki i tworzyć szablony wielokrotnego użytku zaczniesz budować semantyczną strukturę strony z elementów HTML5 nauczysz się określania osobowości strony za pomocą CSS3 będziesz zawsze wybierać odpowiednie frameworki zaimplementujesz funkcje Bootstrapa na stronie Strona responsywna: nowoczesna, dynamiczna, dostosowana do potrzeb!
Responsive Web Design. Projektowanie elastycznych witryn w HTML5 i CSS3
Ben Frain
Niezbędnik każdego projektanta WWW! Jeżeli pamiętasz czasy przed rewolucją mobilną, to z łatwością przypomnisz sobie rozdzielczości królujące w tamtym okresie: 800×600 oraz 1024×768 pikseli. Nie było tabletów, smartfonów, netbooków i telewizorów podłączonych do internetu. Projektant stron WWW napotykał w swojej pracy wiele utrudnień, jednak nie musiał zmagać się z różnorodnością ekranów, jak webmasterzy naszej dekady. Obecnie projektowanie stron dopasowanych do wymogów różnych urządzeń to niezwykle cenna umiejętność. Dzięki tej książce zdobędziesz ją w mig! Już za chwilę skorzystasz z możliwości HTML5 i CSS3, by stworzyć stronę, która zachwyci użytkownika, i to niezależnie od platformy, na której będzie jej używał. Co najważniejsze, żeby to osiągnąć, nie będziesz musiał przygotowywać kilku wersji jednej strony! W trakcie lektury poznasz nowości z CSS3 i HTML5. Dowiesz się, jak uzyskać rewelacyjne efekty, atrakcyjne wizualnie układy oraz decydować o rozmieszczeniu elementów w zależności od docelowej rozdzielczości. Książka ta jest obowiązkową lekturą dla każdego projektanta i programisty stron internetowych. Po prostu musisz ją mieć! Przekonaj się, jak łatwo: obsługiwać różne rozdzielczości ekranów korzystać z plików multimedialnych wspierać starsze przeglądarki tworzyć lepsze strony WWW Zaoszczędź czas — twórz uniwersalne strony WWW!
Responsive Web Design. Projektowanie elastycznych witryn w HTML5 i CSS3. Wydanie II
Ben Frain
Profesjonalnie wykonana strona internetowa powinna działać bez zarzutu nie tylko na komputerze stacjonarnym, lecz także na tablecie czy telefonie. Użytkownicy chcą korzystać z aplikacji sieciowych w każdych warunkach i uruchamiać je na urządzeniach o najprzeróżniejszych rozmiarach czy parametrach. Należy się spodziewać, że wkrótce katalog urządzeń podłączanych do internetu znacznie się poszerzy. W takich warunkach projektant koniecznie musi zadbać o responsywność, aby tworzone przez niego strony internetowe dostosowywały się do zmiennych warunków i zachowywały funkcjonalność. Niniejsza książka stanowi kompletne źródło informacji potrzebnych do napisania responsywnej strony internetowej. Jeśli znasz HTML i CSS, możesz z jej pomocą zbudować taką aplikację. Znajdziesz tu opis wszystkich podstawowych aspektów responsywnych projektów stron i dowiesz się, jak korzystać z najbardziej przydatnych technik w technologiach HTML5 i CSS3. Co więcej, odkryjesz najlepsze metody pisania i dostarczania kodu, obrazów i plików. Dzięki licznym przykładom i opisom bez trudu dostosujesz swój projekt do wymagań telefonów komórkowych i wielu innych urządzeń. Wydanie drugie uzupełniono o opis prawie wszystkich najnowszych technik i narzędzi potrzebnych do budowy responsywnych aplikacji internetowych. W tej książce znajdziesz: opis elementów potrzebnych do zbudowania responsywnych stron internetowych informacje o zapytaniach medialnych, ich składni i sposobach wykorzystania omówienie projektowania struktury i układów płynnych oraz wykorzystania modelu Flexbox wskazówki co do wykorzystania niezwykłych możliwości CSS3 i HTML5 wytyczne dotyczące grafiki SVG oraz metody obsługi obrazów SVG z poziomu JavaScriptu wyjaśnienie, jak tworzyć przejścia, transformacje i formularze spis dobrych praktyk kodowania responsywnych stron internetowych Responsywne strony internetowe — będą równie piękne nawet po latach!
Ben Frain
Responsive Web Design with HTML5 and CSS, Fifth Edition, is the very latest, up-to-date version of one of the bestselling books on HTML5 and CSS. It emphasizes pragmatic application, teaching the approaches needed to build websites and applications, with downloadable examples.Written in Ben's friendly and easy-to-follow style, this title can be read as a complete guide, or used as a reference for each topic.If you're a backend dev looking to understand the front of the web stack and its possibilities, or perhaps a frontend dev looking for a comprehensive resource on everything new in HTML and CSS to build the most efficient UIs, this is the book for you. Even if you are deferring your code writing to AI, this book gives you the requisite knowledge to understand the validity and efficiency of AI's output.Among the many topics, we cover approaches for better accessibility, utilizing variable fonts, explainers on the latest color manipulation techniques and functions, in-depth coverage of bleeding-edge features such as scroll-driven animations, view transitions, CSS anchor positioning, CSS layers, container queries, nesting, and much more.By the end, you'll not only have a thorough understanding of responsive web design and what's possible with the latest HTML5 and CSS, but also know how to best implement each technique.