High Performance Computing: Modern Systems and Practices is a fully comprehensive and easily accessible treatment of high performance computing, covering fundamental concepts and essential knowledge while also providing key skills training. With this book, domain scientists will learn how to use supercomputers as a key tool in their quest for new knowledge. In addition, practicing engineers will discover how supercomputers can employ HPC systems and methods to the design and simulation of innovative products, and students will begin their careers with an understanding of possible directions for future research and development in HPC. Those who maintain and administer commodity clusters will find this textbook provides essential coverage of not only what HPC systems do, but how they are used. Covers enabling technologies, system architectures and operating systems, parallel programming languages and algorithms, scientific visualization, correctness and performance debugging tools and methods, GPU accelerators and big data problems Provides numerous examples that explore the basics of supercomputing, while also providing practical training in the real use of high-end computers Helps users with informative and practical examples that build knowledge and skills through incremental steps Features sidebars of background and context to present a live history and culture of this unique field Includes online resources, such as recorded lectures from the authors´ HPC courses
Modern statistics deals with large and complex data sets, and consequently with models containing a large number of parameters. This book presents a detailed account of recently developed approaches, including the Lasso and versions of it for various models, boosting methods, undirected graphical modeling, and procedures controlling false positive selections. A special characteristic of the book is that it contains comprehensive mathematical theory on high-dimensional statistics combined with methodology, algorithms and illustrations with real data examples. This in-depth approach highlights the methods´ great potential and practical applicability in a variety of settings. As such, it is a valuable resource for researchers, graduate students and experts in statistics, applied mathematics and computer science.
Still images use for many purposes in different professional fields, for example we use images in our driving license, passports and other identity cards. Therefore images are very essential to make critical judgments in our day today life. Because of this people are tend to use new technologies for most of their activities. Furthermore astrophysicist´s use still images taken by the Hubble telescope to investigate unknown parts of the universe. Even our scientists use high resolution images generated from the electron microscope along with their experiments. Today image evidence are playing big role in crime scene investigations and forensic computing. In Sri Lanka also our doctors use those Computed Tomography (CT) scanners, Magnetic Resonance Imaging (MRI) scanners and ´´X´´ rays to diagnose cancers in the human body which utterly use grayscale scan images for further diagnosis.
Learn how to manipulate functions and expressions to modify how the R language interprets itself. This book is an introduction to metaprogramming in the R language, so you will write programs to manipulate other programs. Metaprogramming in R shows you how to treat code as data that you can generate, analyze, or modify. R is a very high-level language where all operations are functions and all functions are data that can be manipulated. This book shows you how to leverage R´s natural flexibility in how function calls and expressions are evaluated, to create small domain-specific languages to extend R within the R language itself. What You´ll Learn Find out about the anatomy of a function in R Look inside a function call Work with R expressions and environments Manipulate expressions in R Use substitutions Who This Book Is For Those with at least some experience with R and certainly for those with experience in other programming languages.
This textbook introduces the ´´Fundamentals of Multimedia´´, addressing real issues commonly faced in the workplace. The essential concepts are explained in a practical way to enable students to apply their existing skills to address problems in multimedia. Fully revised and updated, this new edition now includes coverage of such topics as 3D TV, social networks, high-efficiency video compression and conferencing, wireless and mobile networks, and their attendant technologies. Features: presents an overview of the key concepts in multimedia, including color science; reviews lossless and lossy compression methods for image, video and audio data; examines the demands placed by multimedia communications on wired and wireless networks; discusses the impact of social media and cloud computing on information sharing and on multimedia content search and retrieval; includes study exercises at the end of each chapter; provides supplementary resources for both students and instructors at an associated website.
An indispensable collection of practical tips and real-world advice for tackling common Python problems and taking your code to the next level. Features interviews with high-profile Python developers who share their tips, tricks, best practices, and real-world advice gleaned from years of experience. The Hacker´s Guide to Python will teach you how to fine tune your Python code and give you a deeper understanding of how the language works under the hood. This essential guide distills years of Python experience into a handy collection of general advice and specific tips that will help you pick the right libraries, distribute your code correctly, build future-proof programs, and optimize your programs down to the bytecode. Author Julien Danjou, an OpenStack contributor (the largest open source project written in Python) covers a swath of important areas like scaling, testing, and porting your code. You´ll also learn directly from Python experts and get real-world (and time-saving) advice on topics like unit testing, packaging code, performances and optimizations, and designing APIs. Elevate your code and get seriously good at Python with The Hacker´s Guide to Python!
Learn Intel 64 assembly language and architecture, become proficient in C, and understand how the programs are compiled and executed down to machine instructions, enabling you to write robust, high-performance code. Low-Level Programming explains Intel 64 architecture as the result of von Neumann architecture evolution. The book teaches the latest version of the C language (C11) and assembly language from scratch. It covers the entire path from source code to program execution, including generation of ELF object files, and static and dynamic linking. Code examples and exercises are included along with the best code practices. Optimization capabilities and limits of modern compilers are examined, enabling you to balance between program readability and performance. The use of various performance-gain techniques is demonstrated, such as SSE instructions and pre-fetching. Relevant Computer Science topics such as models of computation and formal grammars are addressed, and their practical value explained. What You´ll Learn Low-Level Programming teaches programmers to: Freely write in assembly language Understand the programming model of Intel 64 Write maintainable and robust code in C11 Follow the compilation process and decipher assembly listings Debug errors in compiled assembly code Use appropriate models of computation to greatly reduce program complexity Write performance-critical code Comprehend the impact of a weak memory model in multi-threaded applications Who This Book Is For Intermediate to advanced programmers and programming students
The digital revolution poses a mortal threat to the major creative industries--music, publishing, television, and the movies. The ease with which digital files can be copied and distributed has unleashed a wave of piracy with disastrous effects on revenue. Cheap, easy self-publishing is eroding the position of these gatekeepers and guardians of culture. Does this revolution herald the collapse of culture, as some commentators claim? Far from it. In Digital Renaissance, Joel Waldfogel argues that digital technology is enabling a new golden age of popular culture, a veritable digital renaissance. By reducing the costs of production, distribution, and promotion, digital technology is democratizing access to the cultural marketplace. More books, songs, television shows, and movies are being produced than ever before. Nor does this mean a tidal wave of derivative, poorly produced kitsch; analyzing decades of production and sales data, as well as bestseller and best-of lists, Waldfogel finds that the new digital model is just as successful at producing high-quality, successful work as the old industry model, and in many cases more so. The vaunted gatekeeper role of the creative industries proves to have been largely mythical. The high costs of production have stifled creativity in industries that require ever-bigger blockbusters to cover the losses on ever-more-expensive failures.
A microstrip patch antenna has a conducting patch which is made of such metals as copper or gold and printed on a grounded dielectric substrate. These antennas are low profile, lightweight, easy fabrication, conformable to planar and non-planar surfaces compatible with MMIC design. A conventional microstrip patch antenna has the disadvantage of narrow bandwidth this poses a challenging task for the microstrip antenna designer to meet the broadband technique. The antennas for portable WLAN device require broadband, high gain, and compact design. As a result of these parameters, multiband antenna techniques have attracted more attention. Recently many new technologies have been proposed for multiband antenna design. In this work rectangular and an equal area, triangular patch antennas are designed and simulated. Overall comparison is made between the antennas.
Read hilarious stories with serious lessons that Michael Lopp extracts from his varied and sometimes bizarre experiences as a manager at Apple, Pinterest, Palantir, Netscape, Symantec, Slack, and Borland. Many of the stories first appeared in primitive form in Lopp´s perennially popular blog, Rands in Repose. The Third Edition of Managing Humans contains a whole new season of episodes from the ongoing saga of Lopp´s adventures in Silicon Valley, together with classic episodes remastered for high fidelity and freshness. Whether you´re an aspiring manager, a current manager, or just wondering what the heck a manager does all day, there is a story in this book that will speak to you-and help you survive and prosper amid the general craziness of dysfunctional bright people caught up in the chase of riches and power. Scattered in repose among these manic misfits are managers, an even stranger breed of people who, through a mystical organizational ritual, have been given power over the futures and the bank accounts of many others. Lopp´s straight-from-the-hip style is unlike that of any other writer on management and leadership. He pulls no punches and tells stories he probably shouldn´t. But they are magically instructive and yield Lopp´s trenchant insights on leadership that cut to the heart of the matter-whether it´s dealing with your boss, handling a slacker, hiring top guns, or seeing a knotty project through to completion. Writing code is easy. Managing humans is not. You need a book to help you do it, and this is it. What You´ll Learn Lead engineers Handle conflict Hire well Motivate employees Manage your boss Discover how to say no Understand different engineering personalities Build effective teams Run a meeting well Scale teams Who This Book Is For Managers and would-be managers staring at the role of a manager wondering why they would ever leave the safe world of bits and bytes for the messy world of managing humans. The book covers handling conflict, managing wildly differing personality types, infusing innovation into insane product schedules, and figuring out how to build a lasting and useful engineering culture.