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R 457.00
Turbo Codes
PREFACE The increasing demand on high data rate and quality of service in wireless communication has to cope with limited bandwidth and energy resources. More than 50 years ago, Shannon has paved the way to optimal usage of bandwidth and energy resources by bounding the spectral efficiency vs. signal to noise ratio trade-off. However, as any information theorist, Shannon told us what is the best we can do but not how to do it [1]. In this view, turbo codes are like a dream come true: they allow approaching the theoretical Shannon capacity limit very closely. However, for the designer who wants to implement these codes, at first sight they appear to be a nightmare. We came a huge step closer in striving the theoretical limit, but see the historical axiom repeated on a different scale: we know we can achieve excellent performance with turbo codes, but not how to realize this in real devices.
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Deep Code
Combining a bent lyric perception with a fragmentation redolent of French cubism, Coletti portrays contemporary urban experience, from power relations and personal loss to nights among city dwellers recording their convivial distress, glad and dissolute at once. Part teddy bear fleeing the cultish outlines of the American northwest, part Apollinaire in Brooklyn, Coletti culls his materials from the ether and assembles them into resonant structures at once intensely personal and strangely universal--a little outrageous--both confusingly lovely and apt in their ungainliness. Lines like "I'm nearly home is what everyone says" and "triceratops & the bad glue / that made us good friends," only begin to demonstrate the astute linguistic eye and deft line break sense of John Coletti. Praise for Deep Code: "A sonic surrealist typewriter clacks in rhythm across Colletti's brow. Read it in his sweet-eye glance: poetry grams of tender touch. Tuff cookie meat! & mystery. Shit is electric wire awesome stuff."----Thurston Moore "In Deep Code, we walk hand-in-hand with a street smart and tenderhearted city boy who, wanting "ALLLLLLL the experience", is immersed and so immerses the reader in contemporary cacophonies where "things collide" at a pace both expansive and measured. John Coletti expertly props our ears to what's striking and dare I say beautiful in the terrifying realities of this world. This book is "at ease / with not being at ease" and that, for me, is a guidepost. Reading Deep Code is like eating some kind of perfected pop rocks--all the colorful action, and just as true, but without the saccharine hangover."--Alli Warren "Deep code is a theory of expressive subterfuge performed as piecemeal continuities. Its poems are distressed & fine like all the chances we forget we're free to make for one another, edged to mellow like the contours of a party felt in general & intimate perception."--Dana Ward About the Author: John Coletti is the author of the book Mum Halo (2010) and the chapbooks Same Enemy Rainbow (2008) and Physical Kind (2005). With Anselm Berrigan, he is the author of the limited edition Skasers (2012).He has served as editor of The Poetry Project Newsletter and co-edits Open 24 Hours Press. Other projects include a collaborative print with artist Kiki Smith, a chapbook collaboration with Shana Moulton, and a libretto for Excelsior, an opera composed by Caleb Burhans commissioned by Chicago's Fifth House Ensemble which premiered in 2013.
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Jesus Code
Jesus gets attention not with exclamation marks, but with question marks.Jesus was always asking questions. Whether with a small group or large crowd, Jesus opened hearts and minds by asking questions that grasped attention and made one think. In The Jesus Code, author O. S. Hawkins poses fifty-two thought-provoking questions found throughout the Bible that believers should be able to answer as they grow in their faith and share their faith with others. Each question features a devotional thought to help readers find answers and promote further reflection.Sample questions include: What does the Lord require of you?Where can I go from Your Spirit?Who is my neighbor?What is your life? A vapor that appears and vanishes away?Why do you seek the living among the dead?Will a man rob God? As with The Joshua Code, all royalties will go to Mission:Dignity, whose mission supports retired pastors and their wives (or widows) living near poverty level.Features & Benefits:Includes 52 thought-provoking questions and answersHandsome burnished leathersoft binding for a rich, classic lookThis release follows peak of O.S. Hawkins’ book, The Joshua Code with sales of more than 150,000 unitsAll author royalties go toward Mission:Dignity, an organization that supports retired pastors and their spouses living near the poverty level
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Polar Codes
Understand a cutting-edge new class of error correction codes with this introduction Channel coding is a pivotal technique employed to account for potential errors due to channel noise or interference by adding layers of redundancy to information prior to transmission or storage. Should errors appear in the transmitted sequence upon reaching its destination, they can be corrected with reference to the redundant layers. Polar codes are a new class of error correction codes that provably achieve the capacity of binary discrete memoryless channels. Their distinct advantages have led to their incorporation in the logical control channels of the fifth generation of wireless communications (5G). Possessing robust and competitive error correction capabilities for short and medium-length codes positions them strategically to fulfill a pivotal role in various communication systems as we move towards the sixth generation of wireless communication (6G) and beyond. Polar Codes provides a thorough, accessible overview of this new class of codes and its applications. Beginning with the foundational theories underlying polar codes, it guides readers through the construction of polar codes, their variants, and their encoding and decoding processes. The result is a must-have for coding researchers and professionals looking to develop an edge in the wireless communications of the future. Polar Codes readers will also find: Continuous connections between discussed concepts and current 5G standards Snippets of code in MATLAB/Python to illustrate key tools End of chapter problems and bibliographical notes to facilitate learning and provide references for further reading. Polar Codes is ideal for graduate students and researchers in coding and information theory, as well as engineers working in communications and related industries.
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Construction and Evolution of Code Generators
Automatic code generation is an essential cornerstone of model-driven approaches to software development. Currently, lots of techniques are available that support the specification and implementation of code generators, such as engines based on templates or rule-based transformations. All those techniques have in common that code generators are either directly programmed or described by means of textual specifications. This monograph presents Genesys, a general approach, which advocates the graphical development of code generators for arbitrary source and target languages, on the basis of models and services. In particular, it is designed to support incremental language development on arbitrary metalevels. The use of models allows building code generators in a truly platform-independent and domain-specific way. Furthermore, models are amenable to formal verification methods such as model checking, which increase the reliability and robustness of the code generators. Services enable the reuse and integration of existing code generation frameworks and tools regardless of their complexity, and at the same time manifest as easy-to-use building blocks which facilitate agile development through quick interchangeability. Both, models and services, are reusable and thus form a growing repository for the fast creation and evolution of code generators.
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Nonlinear Programming Codes
...The increasing importance of mathematical programming for the solution of complex nonlinear systems arising in practical situations requires the development of qualified optimization software. In recent years, a lot of effort has been made to implement efficient and reliable optimization programs and we can observe a wide distribution of these programs both for research and industrial applications. In spite of their practical importance only a few attempts have been made in the past to come to comparative conclusions and to give a designer the possibility to decide which optimization program could solve his individual problems in the most desirable way. Box [BO 1966J, Huang, Levy [HL 1970J, Himmelblau [HI 1971J, Dumi- tru [DU 1974], and More, Garbow, Hillstrom [MG 1978] for example compared algorithms for unres~ricied u~~illii~Gtiv~ y~~~le~~, B~~n [BD 1970], McKeown [MK 1975], and Ramsin, Wedin [RW 1977l studied codes for nonlinear least squares problems. Codes for the linear case are compared by Bartels [BA 1975.J and Schittkowski, Stoer [SS 1979J.Extensive tests for geometric programming algorithms are found in Dembo [DE 1976bJ, Rijckaert [RI 1977], and Rijckaert, Martens [RM 1978J.
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Clean Code in C#
Develop your programming skills by exploring essential topics such as code reviews, implementing TDD and BDD, and designing APIs to overcome code inefficiency, redundancy, and other problems arising from bad codeKey FeaturesWrite code that cleanly integrates with other systems while maintaining well-defined software boundariesUnderstand how coding principles and standards enhance software qualityLearn how to avoid common errors while implementing concurrency or threadingBook DescriptionTraditionally associated with developing Windows desktop applications and games, C# is now used in a wide variety of domains, such as web and cloud apps, and has become increasingly popular for mobile development. Despite its extensive coding features, professionals experience problems related to efficiency, scalability, and maintainability because of bad code. Clean Code in C# will help you identify these problems and solve them using coding best practices.The book starts with a comparison of good and bad code, helping you understand the importance of coding standards, principles, and methodologies. You’ll then get to grips with code reviews and their role in improving your code while ensuring that you adhere to industry-recognized coding standards. This C# book covers unit testing, delves into test-driven development, and addresses cross-cutting concerns. You’ll explore good programming practices for objects, data structures, exception handling, and other aspects of writing C# computer programs. Once you’ve studied API design and discovered tools for improving code quality, you’ll look at examples of bad code and understand which coding practices you should avoid.By the end of this clean code book, you’ll have the developed skills you need in order to apply industry-approved coding practices to write clean, readable, extendable, and maintainable C# code.What you will learnWrite code that allows software to be modified and adapted over timeImplement the fail-pass-refactor methodology using a sample C# console applicationAddress cross-cutting concerns with the help of software design patternsWrite custom C# exceptions that provide meaningful informationIdentify poor quality C# code that needs to be refactoredSecure APIs with API keys and protect data using Azure Key VaultImprove your code’s performance by using tools for profiling and refactoringWho this book is forThis coding book is for C# developers, team leads, senior software engineers, and software architects who want to improve the efficiency of their legacy systems. A strong understanding of C# programming is required.
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Bestseller Code
'If you're someone who dreams of penning a bestseller, read this book' The Week'What if the success of E.L.James and Dan Brown was not so random? What if there were an algorithm that could pick out the bestseller DNA concealed within these books before they're published? This is the audacious claim made by Jodie Archer and Matthew Jockers ... Smart, savvy and full of ideas' Fiona Wilson, The TimesGirl on the Train. Fifty Shades. The Goldfinch. Why do some books capture the whole world's attention? In The Bestseller Code, Archer and Jockers boldly claim that not only can mega-hits be explained and identified - but they've built the algorithm to prove it. Using cutting-edge text mining techniques, they have developed a model that analyses theme, plot, style and character to explain why some books resonate more than others with readers. Provocative, entertaining, and ground-breaking, The Bestseller Code explores the hidden patterns at work in the biggest hits and, more importantly, the real reasons we love to read.'Non-formulaic, eye-opening, deeply-researched - and really worth your time' GQ 'When a story captures the imagination of millions, that's magic. Can you qualify magic? Archer and Jockers just may have done so' Sylvia Day, no.1 bestselling author'The claims are eye-grabbing . . . and also highly plausible' Robert Douglas-Fairhurst, Spectator'Thought-provoking and interesting ... Here is a book worth reading' David Bond, Financial Times
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Introduction to the Theory of Error-Correcting Codes
A complete introduction to the many mathematical tools used to solve practical problems in coding. Mathematicians have been fascinated with the theory of error-correcting codes since the publication of Shannon's classic papers fifty years ago. With the proliferation of communications systems, computers, and digital audio devices that employ error-correcting codes, the theory has taken on practical importance in the solution of coding problems. This solution process requires the use of a wide variety of mathematical tools and an understanding of how to find mathematical techniques to solve applied problems. Introduction to the Theory of Error-Correcting Codes, Third Edition demonstrates this process and prepares students to cope with coding problems. Like its predecessor, which was awarded a three-star rating by the Mathematical Association of America, this updated and expanded edition gives readers a firm grasp of the timeless fundamentals of coding as well as the latest theoretical advances. This new edition features: * A greater emphasis on nonlinear binary codes * An exciting new discussion on the relationship between codes and combinatorial games * Updated and expanded sections on the Vashamov-Gilbert bound, van Lint-Wilson bound, BCH codes, and Reed-Muller codes * Expanded and updated problem sets. Introduction to the Theory of Error-Correcting Codes, Third Edition is the ideal textbook for senior-undergraduate and first-year graduate courses on error-correcting codes in mathematics, computer science, and electrical engineering.
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Code Generation with Templates
Templates are used to generate all kinds of text, including computer code. The last decade, the use of templates gained a lot of popularity due to the increase of dynamic web applications. Templates are a tool for programmers, and implementations of template engines are most times based on practical experience rather than based on a theoretical background. This book reveals the mathematical background of templates and shows interesting findings for improving the practical use of templates. First, a framework to determine the necessary computational power for the template metalanguage is presented. The template metalanguage does not need to be Turing-complete to be useful. A non-Turing-complete metalanguage enforces separation of concerns between the view and model. Second, syntactical correctness of all languages of the templates and generated code is ensured. This includes the syntactical correctness of the template metalanguage and the output language. Third, case studies show that the achieved goals are applicable in practice. It is even shown that syntactical correctness helps to prevent cross-site scripting attacks in web applications. The target audience of this book is twofold. The first group exists of researcher interested in the mathematical background of templates. The second group exists of users of templates. This includes designers of template engines on one side and programmers and web designers using templates on the other side
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Introduction to Error Control Codes
This textbook provides a firm foundation to the field of error control codes, leading the student step by step through this complex topic, beginning with single parity code checks and repetition codes. Through these basic error-control mechanisms the fundamental principles of error detection and correction, minimum distance and error-control limits are considered. With the use of detailed examples the reader is guided from basic error-control codes through to linear codes, cyclic codes, linear feedback shift registers, vector fields, Galois fields, BCH codes and convolutional codes Throughout the book there are many detailed examples to illustrate the principles to the student, and complex mathematical proofs are omitted where possible to keep the text concise and easy to follow. The chapter on the treatment of linear codes avoids reference to vector spaces, enabling the reader to gain an understanding of linear codes sufficient to move onto cyclic codes without the distraction of the complexity of vector spaces. A subsequent chapter considers vector spaces and revisits linear codes in the context of vector spaces.
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Organic Codes
The genetic code appeared on Earth with the first cells. The codes of cultural evolution arrived almost four billion years later. These are the only codes that are recognized by modern biology. In this book, however, Marcello Barbieri explains that there are many more organic codes in nature, and their appearance not only took place throughout the history of life but marked the major steps of that history. A code establishes a correspondence between two independent 'worlds', and the codemaker is a third party between those 'worlds'. Therefore the cell can be thought of as a trinity of genotype, phenotype and ribotype. The ancestral ribotypes were the agents which gave rise to the first cells. The book goes on to explain how organic codes and organic memories can be used to shed new light on the problems encountered in cell signalling, epigenesis, embryonic development, and the evolution of language.
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