Das vorliegende Buch behandelt die Klassifikation von Mustern, d.h. die Zuordnung genau einer von mehreren m-glichen Klassen oder Bedeutungen zu einem Muster. In einer umfassenden Darstellung werden alle Aspekte der Vorverarbeitung, Merkmalgewinnung und Klassifikation behandelt. Die zugrundeliegenden Prinzipien werden sorgf{ltig erl{utert, wobei insbesondereauch neuere Entwicklungen im Bereich der Ermittlung und Auswahl von Merkmalen und im Bereich der auf dynamischerProgrammierung beruhenden Klassifikation er-rtert werden.

Dieses Buch wendet sich an Studierende der Elektrotechnik sowie an Praktiker, die numerische Probleme der Netzwerkana- lyse schnell und einfach auf Basic-Rechnern loesen wollen, ohne selbst Programme schreiben zu mussen. Vorangestellt ist ein Kapitel mit den wesentlichen Formeln und Methoden der Netzwerkanalyse. Es dient z" Cd sehen Infor- mation fur das Studium und die Prufungsv0cbereitung und ist hilfreich fur Leser, die bei der Lekture der Programme und der ubungsaufgaben auf theoretische Schwierigkeiten stossen. Fur die Netzwerkanalyse braucht man nur wenige, aber univer- selle Programme. Hier werden vier leistungsfahige Standard- programme beschrieben. Ihre vielfaltigen Anwendungsmoeglich- keiten werden an zahlreichen UEbungsaufgaben demonstriert. Die UEbungsaufgaben behandeln alle wichtigen Fragestellungen der Netzwerkanalyse und koennen zur Klausurvorbereitung dienen. Fur elementare Netzwerkberechnungen ist ein Programm gedacht, das Kettenrechnungen in komplexer Arithmetik in einfacher Weise auszufuhren gestattet. Groessere Probleme werden haufig mit dem Maschenstrom- oder dem Knotenpunktpotentialverfahren geloest. Diese fuhren auf kom- plexe symmetrische lineare Gleichungssysteme, die mit dem komplexen Gauss-Algorithmus aufgeloest werden. Hierfur ist ein Programm vorgesehen, das die Symmetrie des Gleichungssystems ausnutzt, um die Eingabe zu vereinfachen, Speicher zu sparen und die Rechenzeit zu verkurzen. Der Benutzer muss allerdings das Gleichungssystem selbst aufstellen.

Leverage the latest parallel and concurrency features in .NET 6 when building your next application and explore the benefits and challenges of asynchrony, parallelism, and concurrency in .NET via practical examples Key Features Learn to implement parallel programming and handle concurrency in .NET efficiently Switch threads while debugging and learn how to monitor specific threads in Visual Studio Discover how to cancel tasks with callbacks, by polling, or by using a task with wait handles Book Description.NET has included managed threading capabilities since the beginning, but early techniques had inherent risks: memory leaks, thread synchronization issues, and deadlocks. This book will help you avoid those pitfalls and leverage the modern constructs available in .NET 6 and C# 10, while providing recommendations on patterns and best practices for parallelism and concurrency. Parallel, concurrent, and asynchronous programming are part of every .NET application today, and it becomes imperative for modern developers to understand how to effectively use these techniques. This book will teach intermediate-level .NET developers how to make their applications faster and more responsive with parallel programming and concurrency in .NET and C# with practical examples. The book starts with the essentials of multi-threaded .NET development and explores how the language and framework constructs have evolved along with .NET. You will later get to grips with the different options available today in .NET 6, followed by insights into best practices, debugging, and unit testing. By the end of this book, you will have a deep understanding of why, when, and how to employ parallelism and concurrency in any .NET application. What you will learn Prevent deadlocks and race conditions with managed threading Update Windows app UIs without causing exceptions Explore best practices for introducing asynchronous constructs to existing code Avoid pitfalls when introducing parallelism to your code Implement the producer-consumer pattern with Dataflow blocks Enforce data sorting when processing data in parallel and safely merge data from multiple sources Use concurrent collections that help synchronize data across threads Debug an everyday parallel app with the Parallel Stacks and Parallel Tasks windows Who this book is forThis book is for beginner to intermediate-level .NET developers who want to employ the latest parallel and concurrency features in .NET when building their applications. Readers should have a solid understanding of the C# language and any version of the .NET Framework or .NET Core.

A pragmatic handbook to understand IoT technologies and market as well as implement cellular IoT solutions as part of an enterprise digital transformation affecting both operational cost savings and new business models Key Features * Practical guide for understanding all critical aspects of an Cellular IoT solution * Helps to identify the key enterprise IoT markets and the business cases for Cellular IoT * Apply best practices and case studies to develop robust end-to-end Cellular IoT solutions Book Description Although IoT technology managers may understand wireless local area network (WLAN) technologies like WiFi or Bluetooth, there are unique challenges when implementing a wireless wide area network (WWAN) IoT solution with cellular technologies such as choosing the optimal IoT device, cellular connectivity, and architecture. This book is a hands-on guide for understanding and implementing a robust, end-to-end cellular IoT solution by providing best practices for all aspects of the IoT solution. Beginning with a description of the top IoT markets in the context of an enterprise digital transformation leading to cost savings and new business models, this book provides a good understanding of the key components and best practices for implementing an IoT solution. While this book covers a description of all the leading IoT wireless technologies, the focus is on LTE and 5G cellular technologies with real-world case studies of end-to-end cellular IoT solutions for enterprise. By the end of this book, you will be able to identify the best wireless technologies for your IoT use-case and understand the architecture and best practices of a successful cellular IoT solution addressing the key pain points in the solution lifecycle. What you will learn * Understand the IoT market and how IoT enables enterprise digital transformation * Learn the various IoT wireless technologies and their trade-offs * Explore various IoT device types supported with use cases * Get to grips with LTE and 5G cellular technologies and how they enable IoT * Implement the best practices for end-to-end IoT solutions * Overcome the challenges during IoT solution lifecycle support * How to select the best Cellular IoT solution for the enterprise Who This Book Is For This book is for IOT technology leaders, executives and decision-makers considering or currently developing IoT solutions based on cellular technologies such as LTE and 5G. We can assume the reader understands the importance of IoT connectivity in the context of their application.

Get to grips with building reliable, scalable, and maintainable database solutions for enterprises and production databases Key Features Implement PostgreSQL 13 features to perform end-to-end modern database management Design, manage, and build enterprise database solutions using a unique recipe-based approach Solve common and not-so-common challenges faced while working to achieve optimal database performance Book DescriptionPostgreSQL has become the most advanced open source database on the market. This book follows a step-by-step approach, guiding you effectively in deploying PostgreSQL in production environments. The book starts with an introduction to PostgreSQL and its architecture. You'll cover common and not-so-common challenges faced while designing and managing the database. Next, the book focuses on backup and recovery strategies to ensure your database is steady and achieves optimal performance. Throughout the book, you'll address key challenges such as maintaining reliability, data integrity, a fault-tolerant environment, a robust feature set, extensibility, consistency, and authentication. Moving ahead, you'll learn how to manage a PostgreSQL cluster and explore replication features for high availability. Later chapters will assist you in building a secure PostgreSQL server, along with covering recipes for encrypting data in motion and data at rest. Finally, you'll not only discover how to tune your database for optimal performance but also understand ways to monitor and manage maintenance activities, before learning how to perform PostgreSQL upgrades during downtime. By the end of this book, you'll be well-versed with the essential PostgreSQL 13 features to build enterprise relational databases. What you will learn Understand logical and physical backups in Postgres Demonstrate the different types of replication methods possible with PostgreSQL today Set up a high availability cluster that provides seamless automatic failover for applications Secure a PostgreSQL encryption through authentication, authorization, and auditing Analyze the live and historic activity of a PostgreSQL server Understand how to monitor critical services in Postgres 13 Manage maintenance activities and performance tuning of a PostgreSQL cluster Who this book is forThis PostgreSQL book is for database architects, database developers and administrators, or anyone who wants to become well-versed with PostgreSQL 13 features to plan, manage, and design efficient database solutions. Prior experience with the PostgreSQL database and SQL language is expected.

Learn to design and develop safe and reliable software for embedded systems. Explore the internals of device drivers, RTOS, and TEE. Key Features * Identify and overcome challenges in embedded environments * Understand the steps required to increase the security of IoT solutions * Build safety-critical and memory-safe parallel and distributed embedded systems Book Description Embedded systems are self-contained units that have a dedicated purpose within a device. We come across a variety of applications of embedded systems in navigation tools, telecom applications, and networking equipment, to name just a few. Embedded Systems Architecture begins with a bird's eye view of embedded development and how it differs from the other systems that you may be familiar with. You'll first be guided to set up a development environment and then move on to the core system architectural concepts, exploring pragmatic designs, boot-up mechanisms, and memory management. Next, you'll look at the programming interface and device drivers to establish communication via TCP/IP and take measures to increase the security of IoT solutions. Lastly, you'll be introduced to parallel multithreaded applications through the development of a scheduler. By the end of the book, you will have explored various aspects of embedded architecture such as memory management, focusing on a memory-safe approach, multithreading, and the RTOS approach. What you will learn * Participate in the design and definition phase of an embedded product * Get to grips with writing code for ARM Cortex-M microcontrollers * Build an embedded development lab and optimize the workflow * Write memory-safe code * Understand the architecture behind the communication interfaces * Understand the design and development patterns for connected and distributed devices in the IoT * Master multitask parallel execution patterns and real-time operating systems * Learn about Trusted Execution Environment Who This Book Is For If you're a software developer or designer wanting to learn about embedded programming, this is the book for you. You'll also find this book useful if you're a less experienced or a beginner embedded programmer willing to expand your knowledge on embedded systems.

Get familiar with all the concepts related to Raspberry Pi and MQTT, build innovative IoT projects, and discover how to scale these projects to the next level Key Features Learn some of the most popular tools used in IoT - Raspberry Pi, MQTT, ESP8266 and more Build exciting projects such as an IoT weather station and a smart switch board Discover the advantages of taking your MQTT broker global Book DescriptionThe future of IoT has the potential to be limitless. Wouldn't it be great if you could add it to your own technological stacks? But where to start? With the basics, of course. In this book, you will start by learning about the most popular hardware and communication protocol, Raspberry Pi and MQTT. You will see how to use them together by setting up your own MQTT server on Raspberry Pi and understand how it works. This book explores MQTT in detail, including the clients and devices that you can connect to your server. You will discover two very popular IoT development boards among project developers: the ESP8266 and ESP32 development boards. Then, you will learn how to build interactive dashboards on your Pi and monitor your client devices. The book also shows you how to build a dashboard using another popular software - Node-RED. You will be able to put your skills to the test by creating two full-scale projects. That's not all: you will also learn how to host your own MQTT server on a virtual cloud service. Finally, you will be guided on how to move forward from here, what technologies to learn, and some project recommendations to polish or test your knowledge. By the end of this book, you will be able to build meaningful projects using Raspberry Pi and MQTT and create dashboards for your projects on Node-RED. What you will learn Configure and use a Raspberry Pi for IoT projects Implement the MQTT communication protocol for projects Understand how to set up the NodeMCU and ESP32 boards as MQTT clients Control a NodeMCU board through a Node-RED dashboard hosted on Raspberry Pi Get LAMP server, Home Assistant, and MariaDB on the Raspberry Pi Set up an online MQTT broker on a cloud service or enterprise service provider platform Build full-scale, end-to-end prototype projects Who this book is forThis book is for students who are interested in IoT and want to build projects using the available developer hardware. Educators who want to introduce a course on IoT into their curriculum, technology enthusiasts, and IoT developers who are just getting started will also benefit from this book. No prior knowledge about the two main topics that the book covers is required - Raspberry Pi and MQTT. A basic understanding of what IoT is will also be useful but not mandatory.

This book is about the company culture that helped drive Arm Limited's spectacular growth to become the world's leading semiconductor Intellectual Property (IP) company. Its extremely power-efficient processor technology has been licensed to hundreds of semiconductor chip manufacturers and Original Equipment Manufacturers (OEMs). Arm is still largely unknown to the broader public, yet Arm's technology is nearly ubiquitous and has been a foundational building block of the global rise of the smartphone. Arm-based microprocessors power over 95% of the world's mobile phones. However, this book is not about technology. It's about how a company grew from being a small start-up in Cambridge, UK with 12 people and a GBP1.75m cash investment to a global organization with over 5,000 employees in over 50 countries and more than $1.5bn revenue in 2016 when SoftBank acquired it for $32bn. Arm Limited was founded as Advanced RISC Machines in November 1990, a joint venture between a British computer manufacturer, Acorn Computers Limited and its much larger US competitor, Apple Computers Inc. The purpose of the new venture was to develop and proliferate the uniquely power-efficient and high-performance RISC-based microprocessor technology that had been developed several years earlier by Acorn. Using first-hand interviews with founders and the author's knowledge, this book charts some of the key people involved in the birth of the technology and the company Advanced RISC Machines. It considers how their behaviors and decisions led to the creation of the licensing business model and the strategy that underpinned Arm's later success. This book reveals some of the layers that help explain how the combination of culture, strategy and execution built the world's leading semiconductor IP company. It provides insight into ten essential ingredients of Arm's success, including the company's unique proposition, how the early business model and strategy were formed, the creation and evolution of the winning culture, the ecosystem of shared success and how Arm stayed unified throughout a period of extraordinary growth. The purpose of the book is to help readers create a culture of inclusiveness, collaboration and innovation within their own organizations. The book provides examples from Arm's history which should provide inspiration and guidance for making the necessary changes to enable a winning culture. Additional details of interest to history lovers include the stories behind the BBC Microcomputer prototype, the Acorn RISC Machine microprocessor development, Advanced RISC Machines' creation, the partnership-focused licensing business model's development, the nearly lost design-win at Nokia for their new GSM mobile, the 20+ billion selling Cortex (R)-M product that almost didn't happen and the battle for smartphones and tablets with Intel. www.culturewon.com

Get to grips with key IoT aspects along with modern trends, architectures, and technologies that support IoT solutions, such as cloud computing, modern app architecture paradigms, and data analytics Key Features Understand the big picture of designing production-grade IoT solutions from an industry expert Get up and running with the development and designing aspects of the Internet of Things Solve business problems specific to your domain using different IoT platforms and technologies Book DescriptionWith the rising demand for and recent enhancements in IoT, a developer with sound knowledge of IoT is the need of the hour. This book will help you design, build, and operate large-scale E2E IoT solutions to transform your business and products, increase revenue, and reduce operational costs. Starting with an overview of how IoT technologies can help you solve your business problems, this book will be a useful guide to helping you implement end-to-end IoT solution architecture. You'll learn to select IoT devices; real-time operating systems; IoT Edge covering Edge location, software, and hardware; and the best IoT connectivity for your IoT solution. As you progress, you'll work with IoT device management, IoT data analytics, IoT platforms, and put these components to work as part of your IoT solution. You'll also be able to build IoT backend cloud from scratch by leveraging the modern app architecture paradigms and cloud-native technologies such as containers and microservices. Finally, you'll discover best practices for different operational excellence pillars, including high availability, resiliency, reliability, security, cost optimization, and high performance, which should be applied for large-scale production-grade IoT solutions. By the end of this IoT book, you'll be confident in designing, building, and operating IoT solutions. What you will learn Understand the detailed anatomy of IoT solutions and explore their building blocks Explore IoT connectivity options and protocols used in designing IoT solutions Understand the value of IoT platforms in building IoT solutions Explore real-time operating systems used in microcontrollers Automate device administration tasks with IoT device management Master different architecture paradigms and decisions in IoT solutions Build and gain insights from IoT analytics solutions Get an overview of IoT solution operational excellence pillars Who this book is forThis book is for E2E solution architects, systems and technical architects, and IoT developers looking to design, build, and operate E2E IoT applications and solutions. Basic knowledge of cloud computing, software engineering, and distributed system design will help you get the most out of this book.

The Igth century was distinguished by the construction of machines with enormous power. During the last decade rapid progress has been made in the development of a completely different type of machine. These new machines, the electronic computers, are not built to generate power or to do mechanical work, but to perform logical operations and ca1culations. This new concept will have a profound influence on engineering, science, ami economy. In fact, the first effects of this development are already taking shape today. It is the purpose 01 this book to give a survey of the basic principles and applications of computers for the benefit of those who hitherto did not work with them, but who might have use for them in the future. The rapid progress of the engineering science has, naturally, led to a situation in which the practicing scientist and engineer cannot keep abreast of the progress in neighboring fields. The chapters of this book were prepared by distinguished experts in the field of computers for the non-expert who does not intend to become an expert, but W}: l0 wants Jo acquire a general understanding of the problems and solutions which he needs to effectively perform the work in his proper field. We address this book to the engineers and scientists who want to know the performance of computers, as weH as to the managers who are rnainly concerned with their econornic aspect.

Mit der programmgesteuerten Rechenanlage (Ziffern-Rechenautomat) ist vor etwa zwanzig Jahren ein Maschinentyp auf den Plan getreten, der Leistungen zu voll bringen imstande ist, die bis dahin der menschlichen Geistestatigkeit vorbehalten waren. Zu der Kraft-Maschine, welche menschliche Muskelkraft ersetzt, kam die Informations-Maschine *) hinzu, welche logisch erfaBbare Tatigkeiten der mensch lichen Ratio ausfiihren und somit den Menschen auf einer hoheren, der geistigen, Ebene entlasten kann. 1m Zuge der Entwicklung hat sich die programmgesteuerte Rechenanlage, der Prototyp der InformationsmaschiI'l'2, ein viel groBeres Anwendungsfeld erschlossen, als es durch die Interessen der Mathematiker gekennzeichnet ist. Andere Maschinentypen sind hinzugekommen, auf welche die Bezeichnung Rechen Automat nurmehr bedingt paBt, die aber andererseits Anspruch haben, ebenbiirtig an deren Seite gestellt zu werden. Dabei denkt man zum Beispiel an die tech nischen Modelle zur Beschreibung von Lernvorgangen, an Spezialzweckanlagen zur Datenverarbeitung, Spracheniibersetzung, logischen Beweisfiihrung, zur Aus fiihrung von Strategiespielen usw. In Anbetracht der Vielfalt der Interessen er scheint es nicht unbillig zu fragen, wo, an welcher Stelle im Gebaude der Natur und technischen Wissenschaften wir uns iiberhaupt befinden, ob eine einfache Interpretation des Sachverhalts iiberhaupt moglich ist, die uns ein Zurechtfinden erlaubt."