Tag: Codes

Free Download Sociological Theory for Digital Society: The Codes that Bind Us Together
by Ori Schwarz
English | 2023 | ISBN: 1509542965 | 218 Pages | True ePUB | 0.59 MB

Free Download New Advances in Designs, Codes and Cryptography
English | 2024 | ISBN: 3031486781 | 452 Pages | PDF EPUB (True) | 40 MB
This volume records and disseminates selected papers from the Stinson66 conference, including surveys, prospectives, and papers presenting original and current research. It contains four accessible surveys of topics in combinatorial designs and related topics, ranging from a tutorial survey of connections to classical group theory, to surveys of "hot topics" in current research. It also contains a prospective paper identifying topics for future research efforts, co-authored by one of the elder statesmen of the field, Alex Rosa. Finally, the research papers examine topics ranging from pure mathematics to applied work in computing, networking, communications, and cryptography.

Free Download P. Arnold, "Modern Geotechnical Design Codes of Practice "
English | ISBN: 1614991626 | 2012 | 344 pages | PDF | 8 MB
The ground is one of the most highly variable of engineering materials. It is therefore not surprising that geotechnical designs depend on local site conditions and local engineering experience. Engineering practices, relating to investigation and design methods (site understanding) and to safety levels acceptable to society, will therefore vary between different regions. The challenge in geotechnical engineering is to make use of worldwide geotechnical experience, established over many years, to aid in the development and harmonization of geotechnical design codes. Given the significant uncertainties involved, empiricism and engineering judgment will undoubtedly always be an essential element of geotechnical design. However, rigorous and scientific approaches based on probability theory are finding increased attention in the calibration of modern geotechnical codes of practice and these codes can and should be used to aid fundamental engineering judgment. Containing contributions on Code Implementation, Code Application and Code Development, this book provides a single resource that code developers, practitioners, and researchers can use to understand the different choices made by national code developers around the world. Furthermore, the book highlights some of the key challenges faced worldwide concerning the ongoing process of harmonizing geotechnical design code specifications.

Free Download Codes, Systems, and Graphical Models by Brian Marcus, Joachim Rosenthal
English | PDF | 2001 | 520 Pages | ISBN : 0387951733 | 43.7 MB
Coding theory, system theory, and symbolic dynamics have much in common. Among the central themes in each of these subjects are the construction of state space representations, understanding of fundamental structural properties of sequence spaces, construction of input/output systems, and understanding the special role played by algebraic structure. A major new theme in this area of research is that of codes and systems based on graphical models.

Free Download Algebraic Function Fields and Codes by Henning Stichtenoth
English | PDF (True) | 2009 | 363 Pages | ISBN : 3540768777 | 5 MB
15 years after the ?rst printing of Algebraic Function Fields and Codes,the mathematics editors of Springer Verlag encouraged me to revise and extend the book. Besides numerous minor corrections and amendments, the second edition di?ers from the ?rst one in two respects. Firstly I have included a series of exercises at the end of each chapter. Some of these exercises are fairly easy and should help the reader to understand the basic concepts, others are more advanced and cover additional material. Secondly a new chapter titled "Asymptotic Bounds for the Number of Rational Places" has been added. This chapter contains a detailed presentation of the asymptotic theory of function ?elds over ?nite ?elds, including the explicit construction of some asymptotically good and optimal towers. Based on these towers, a complete and self-contained proof of the Tsfasman-Vladut-Zink Theorem is given. This theorem is perhaps the most beautiful application of function ?elds to coding theory. The codes which are constructed from algebraic function ?elds were ?rst introduced by V. D. Goppa. Accordingly I referred to them in the ?rst edition as geometric Goppa codes. Since this terminology has not generally been – cepted in the literature, I now use the more common term algebraic geometry codes or AG codes. I would like to thank Alp Bassa, Arnaldo Garcia, Cem Guneri, ¨ Sevan Harput and Alev Topuzo? glu for their help in preparing the second edition.

Free Download Codes of Modernity: Chinese Scripts in the Global Information Age by Uluğ Kuzuoğlu
English | November 28th, 2023 | ISBN: 0231209398 | 324 pages | True PDF | 37.28 MB
In the late nineteenth century, Chinese reformers and revolutionaries believed that there was something fundamentally wrong with the Chinese writing system. The Chinese characters, they argued, were too cumbersome to learn, blocking the channels of communication, obstructing mass literacy, and impeding scientific progress. What had sustained a civilization for more than two millennia was suddenly recast as the root cause of an ongoing cultural suicide. China needed a new script to survive in the modern world.

Free Download Turbo Codes: Desirable and Designable by Alexandre Giulietti , Bruno Bougard , Liesbet Perre
English | PDF | 2004 | 158 Pages | ISBN : 1402076606 | 14.4 MB
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.

Free Download Codes et turbocodes by Claude Berrou
Français | PDF (True) | 2007 | 408 Pages | ISBN : 2287327398 | 6.4 MB
Cet ouvrage est consacré à l’une des fonctions essentielles des systèmes de télécommunications modernes : le codage de canal ou codage correcteur d’erreurs. À la croisée de la théorie de l’information, des mathématiques et de l’électronique, le codage de canal a connu de nombreux développements depuis les travaux fondateurs de Claude Shannon. Du simple code de Hamming (1950) aux récents turbocodes (1993) en passant par les codes LDPC (1962), le codage de canal a considérablement évolué et a intégré des concepts de plus en plus sophistiqués, en particulier le traitement probabiliste de l’information.

Free Download Classification Algorithms for Codes and Designs by Petteri Kaski , Patric R.J. Östergård
English | PDF | 2006 | 414 Pages | ISBN : 3540289909 | 4 MB
A new starting-point and a new method are requisite, to insure a complete [classi?cation of the Steiner triple systems of order 15]. This method was furnished, and its tedious and di?cult execution und- taken, by Mr. Cole. F. N. Cole, L. D. Cummings, and H. S. White (1917) [129] The history of classifying combinatorial objects is as old as the history of the objects themselves. In the mid-19th century, Kirkman, Steiner, and others became the fathers of modern combinatorics, and their work – on various objects, including (what became later known as) Steiner triple systems – led to several classi?cation results. Almost a century earlier, in 1782, Euler [180] published some results on classifying small Latin squares, but for the ?rst few steps in this direction one should actually go at least as far back as ancient Greece and the proof that there are exactly ?ve Platonic solids. One of the most remarkable achievements in the early, pre-computer era is the classi?cation of the Steiner triple systems of order 15, quoted above. An onerous task that, today, no sensible person would attempt by hand calcu- tion. Because, with the exception of occasional parameters for which com- natorial arguments are e?ective (often to prove nonexistence or uniqueness), classi?cation in general is about algorithms and computation.