0
Your cart

Your cart is empty

Browse All Departments
Price
  • R100 - R250 (1)
  • R250 - R500 (9)
  • R500+ (5,131)
  • -
Status
Format
Author / Contributor
Publisher

Books > Computing & IT > General theory of computing > Mathematical theory of computation

Adaptive Modelling, Estimation and Fusion from Data - A Neurofuzzy Approach (Hardcover, 2002 ed.): Chris Harris, Xia Hong,... Adaptive Modelling, Estimation and Fusion from Data - A Neurofuzzy Approach (Hardcover, 2002 ed.)
Chris Harris, Xia Hong, Qiang Gan
R2,697 Discovery Miles 26 970 Ships in 18 - 22 working days

In a world of almost permanent and rapidly increasing electronic data availability, techniques of filtering, compressing, and interpreting this data to transform it into valuable and easily comprehensible information is of utmost importance. One key topic in this area is the capability to deduce future system behavior from a given data input. This book brings together for the first time the complete theory of data-based neurofuzzy modelling and the linguistic attributes of fuzzy logic in a single cohesive mathematical framework. After introducing the basic theory of data-based modelling, new concepts including extended additive and multiplicative submodels are developed and their extensions to state estimation and data fusion are derived. All these algorithms are illustrated with benchmark and real-life examples to demonstrate their efficiency. Chris Harris and his group have carried out pioneering work which has tied together the fields of neural networks and linguistic rule-based algortihms. This book is aimed at researchers and scientists in time series modeling, empirical data modeling, knowledge discovery, data mining, and data fusion.

Collected Papers - Volume 2: 1935-1944 (Hardcover, 1st ed. 2019): Alfred Tarski Collected Papers - Volume 2: 1935-1944 (Hardcover, 1st ed. 2019)
Alfred Tarski
R4,887 Discovery Miles 48 870 Ships in 18 - 22 working days

Alfred Tarski was one of the two giants of the twentieth-century development of logic, along with Kurt Goedel. The four volumes of this collection contain all of Tarski's published papers and abstracts, as well as a comprehensive bibliography. Here will be found many of the works, spanning the period 1921 through 1979, which are the bedrock of contemporary areas of logic, whether in mathematics or philosophy. These areas include the theory of truth in formalized languages, decision methods and undecidable theories, foundations of geometry, set theory, and model theory, algebraic logic, and universal algebra.

Graph Drawing Software (Hardcover, 2004 ed.): Michael Junger, Petra Mutzel Graph Drawing Software (Hardcover, 2004 ed.)
Michael Junger, Petra Mutzel
R4,083 Discovery Miles 40 830 Ships in 18 - 22 working days

Automatic Graph Drawing is concerned with the layout of relational structures as they occur in Computer Science (Data Base Design, Data Mining, Web Mining), Bioinformatics (Metabolic Networks), Businessinformatics (Organization Diagrams, Event Driven Process Chains), or the Social Sciences (Social Networks). In mathematical terms, such relational structures are modeled as graphs or more general objects such as hypergraphs, clustered graphs, or compound graphs. A variety of layout algorithms that are based on graph theoretical foundations have been developed in the last two decades and implemented in software systems. After an introduction to the subject area and a concise treatment of the technical foundations for the subsequent chapters, this book features 14 chapters on state-of-the-art graph drawing software systems, ranging from general "tool boxes'' to customized software for various applications. These chapters are written by leading experts, they follow a uniform scheme and can be read independently from each other.

The Pre-Kernel as a Tractable Solution for Cooperative Games - An Exercise in Algorithmic Game Theory (Hardcover, 2014 ed.):... The Pre-Kernel as a Tractable Solution for Cooperative Games - An Exercise in Algorithmic Game Theory (Hardcover, 2014 ed.)
Holger Ingmar Meinhardt
R3,096 R1,924 Discovery Miles 19 240 Save R1,172 (38%) Ships in 10 - 15 working days

This present book provides an alternative approach to study the pre-kernel solution of transferable utility games based on a generalized conjugation theory from convex analysis. Although the pre-kernel solution possesses an appealing axiomatic foundation that lets one consider this solution concept as a standard of fairness, the pre-kernel and its related solutions are regarded as obscure and too technically complex to be treated as a real alternative to the Shapley value. Comprehensible and efficient computability is widely regarded as a desirable feature to qualify a solution concept apart from its axiomatic foundation as a standard of fairness. We review and then improve an approach to compute the pre-kernel of a cooperative game by the indirect function. The indirect function is known as the Fenchel-Moreau conjugation of the characteristic function. Extending the approach with the indirect function, we are able to characterize the pre-kernel of the grand coalition simply by the solution sets of a family of quadratic objective functions.

Cyberpatterns - Unifying Design Patterns with Security and Attack Patterns (Hardcover, 2014 ed.): Clive Blackwell, Hong Zhu Cyberpatterns - Unifying Design Patterns with Security and Attack Patterns (Hardcover, 2014 ed.)
Clive Blackwell, Hong Zhu
R3,424 R1,924 Discovery Miles 19 240 Save R1,500 (44%) Ships in 10 - 15 working days

Cyberspace in increasingly important to people in their everyday lives for purchasing goods on the Internet, to energy supply increasingly managed remotely using Internet protocols. Unfortunately, this dependence makes us susceptible to attacks from nation states, terrorists, criminals and hactivists. Therefore, we need a better understanding of cyberspace, for which patterns, which are predictable regularities, may help to detect, understand and respond to incidents better. The inspiration for the workshop came from the existing work on formalising design patterns applied to cybersecurity, but we also need to understand the many other types of patterns that arise in cyberspace.

A Generative Theory of Relevance (Hardcover, 2009 ed.): Victor Lavrenko A Generative Theory of Relevance (Hardcover, 2009 ed.)
Victor Lavrenko
R2,661 Discovery Miles 26 610 Ships in 18 - 22 working days

A modern information retrieval system must have the capability to find, organize and present very different manifestations of information - such as text, pictures, videos or database records - any of which may be of relevance to the user. However, the concept of relevance, while seemingly intuitive, is actually hard to define, and it's even harder to model in a formal way.

Lavrenko does not attempt to bring forth a new definition of relevance, nor provide arguments as to why any particular definition might be theoretically superior or more complete. Instead, he takes a widely accepted, albeit somewhat conservative definition, makes several assumptions, and from them develops a new probabilistic model that explicitly captures that notion of relevance. With this book, he makes two major contributions to the field of information retrieval: first, a new way to look at topical relevance, complementing the two dominant models, i.e., the classical probabilistic model and the language modeling approach, and which explicitly combines documents, queries, and relevance in a single formalism; second, a new method for modeling exchangeable sequences of discrete random variables which does not make any structural assumptions about the data and which can also handle rare events.

Thus his book is of major interest to researchers and graduate students in information retrieval who specialize in relevance modeling, ranking algorithms, and language modeling.

Foundations of Information Technology in the Era of Network and Mobile Computing - IFIP 17th World Computer Congress - TC1... Foundations of Information Technology in the Era of Network and Mobile Computing - IFIP 17th World Computer Congress - TC1 Stream / 2nd IFIP International Conference on Theoretical Computer Science (TCS 2002) August 25-30, 2002, Montreal, Quebec, Canada (Hardcover, 2002 ed.)
Ricardo Baeza-Yates, Ugo Montanari, Nicola Santoro
R4,351 Discovery Miles 43 510 Ships in 18 - 22 working days

In recent years, IT application scenarios have evolved in very innovative ways. Highly distributed networks have now become a common platform for large-scale distributed programming, high bandwidth communications are inexpensive and widespread, and most of our work tools are equipped with processors enabling us to perform a multitude of tasks. In addition, mobile computing (referring specifically to wireless devices and, more broadly, to dynamically configured systems) has made it possible to exploit interaction in novel ways.
To harness the flexibility and power of these rapidly evolving, interactive systems, there is need of radically new foundational ideas and principles; there is need to develop the theoretical foundations required to design these systems and to cope with the many complex issues involved in their construction; and there is need to develop effective principles for building and analyzing such systems.
Reflecting the diverse and wide spectrum of topics and interests within the theoretical computer science community, Foundations of Information Technology in the Era of Network and Mobile Computing is presented in two distinct but interrelated tracks:

-Algorithms, Complexity and Models of Computation;
-Logic, Semantics, Specification and Verification.This volume contains 45 original and significant contributions addressing these foundational questions, as well as 4 papers by outstanding invited speakers. These papers were presented at the 2nd IFIP International Conference on Theoretical Computer Science (TCS 2002), which was held in conjunction with the 17th World Computer Congress, sponsored by the International Federation for Information Processing (IFIP), and which convened in Montreal, Quebec, Canada in August 2002."

Mathematical Logic For Computer Science (2nd Edition) (Hardcover, 2nd Revised edition): Zhongwan Lu Mathematical Logic For Computer Science (2nd Edition) (Hardcover, 2nd Revised edition)
Zhongwan Lu
R2,048 Discovery Miles 20 480 Ships in 18 - 22 working days

Mathematical logic is essentially related to computer science. This book describes the aspects of mathematical logic that are closely related to each other, including classical logic, constructive logic, and modal logic. This book is intended to attend to both the peculiarities of logical systems and the requirements of computer science.In this edition, the revisions essentially involve rewriting the proofs, increasing the explanations, and adopting new terms and notations.

High-Rate, High-Dimensional Quantum Key Distribution Systems (Hardcover, 1st ed. 2018): Nurul T. Islam High-Rate, High-Dimensional Quantum Key Distribution Systems (Hardcover, 1st ed. 2018)
Nurul T. Islam
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

This book describes a broad research program on quantum communication. Here, a cryptographic key is exchanged by two parties using quantum states of light and the security of the system arises from the fundamental properties of quantum mechanics. The author developed new communication protocols using high-dimensional quantum states so that more than one classical bit is transferred by each photon. This approach helps circumvent some of the non-ideal properties of the experimental system, enabling record key rates on metropolitan distance scales. Another important aspect of the work is the encoding of the key on high-dimensional phase-randomized weak coherent states, combined with so-called decoy states to thwart a class of possible attacks on the system. The experiments are backed up by a rigorous security analysis of the system, which accounts for all known device non-idealities. The author goes on to demonstrate a scalable approach for increasing the dimension of the quantum states, and considers attacks on the system that use optimal quantum cloning techniques. This thesis captures the current state-of-the-art of the field of quantum communication in laboratory systems, and demonstrates that phase-randomized weak coherent states have application beyond quantum communication.

Fault-Tolerance Techniques for High-Performance Computing (Hardcover, 1st ed. 2015): Thomas Herault, Yves Robert Fault-Tolerance Techniques for High-Performance Computing (Hardcover, 1st ed. 2015)
Thomas Herault, Yves Robert
R2,691 Discovery Miles 26 910 Ships in 18 - 22 working days

This timely text presents a comprehensive overview of fault tolerance techniques for high-performance computing (HPC). The text opens with a detailed introduction to the concepts of checkpoint protocols and scheduling algorithms, prediction, replication, silent error detection and correction, together with some application-specific techniques such as ABFT. Emphasis is placed on analytical performance models. This is then followed by a review of general-purpose techniques, including several checkpoint and rollback recovery protocols. Relevant execution scenarios are also evaluated and compared through quantitative models. Features: provides a survey of resilience methods and performance models; examines the various sources for errors and faults in large-scale systems; reviews the spectrum of techniques that can be applied to design a fault-tolerant MPI; investigates different approaches to replication; discusses the challenge of energy consumption of fault-tolerance methods in extreme-scale systems.

Signal and Image Representation in Combined Spaces, Volume 7 (Hardcover): Yehoshua Zeevi, Ronald Coifman Signal and Image Representation in Combined Spaces, Volume 7 (Hardcover)
Yehoshua Zeevi, Ronald Coifman
R1,702 Discovery Miles 17 020 Ships in 10 - 15 working days

This text explains how advances in wavelet analysis provide new means for multiresolution analysis and describes its wide array of powerful tools. The book covers such topics as: the variations of the windowed Fourier transform; constructions of special waveforms suitable for specific tasks; the use of redundant representations in reconstruction and enhancement; applications of efficient numerical compression as a tool for fast numerical analysis; and approximation properties of various waveforms in different contexts.

An Introduction to Modern Mathematical Computing - With Mathematica (R) (Hardcover, 2012 ed.): Jonathan M. Borwein, Matthew P.... An Introduction to Modern Mathematical Computing - With Mathematica (R) (Hardcover, 2012 ed.)
Jonathan M. Borwein, Matthew P. Skerritt
R1,557 Discovery Miles 15 570 Ships in 18 - 22 working days

Thirty years ago mathematical, as opposed to applied numerical, computation was difficult to perform and so relatively little used. Three threads changed that: the emergence of the personal computer; the discovery of fiber-optics and the consequent development of the modern internet; and the building of the Three "M's" Maple, Mathematica and Matlab. We intend to persuade that Mathematica and other similar tools are worth knowing, assuming only that one wishes to be a mathematician, a mathematics educator, a computer scientist, an engineer or scientist, or anyone else who wishes/needs to use mathematics better. We also hope to explain how to become an "experimental mathematician" while learning to be better at proving things. To accomplish this our material is divided into three main chapters followed by a postscript. These cover elementary number theory, calculus of one and several variables, introductory linear algebra, and visualization and interactive geometric computation.

Proceedings Of The Sixth Asian Logic Conference (Paperback): Chitat Chong, Mariko Yasugi, Qi Feng, Qieyuan Huang, Decheng Ding Proceedings Of The Sixth Asian Logic Conference (Paperback)
Chitat Chong, Mariko Yasugi, Qi Feng, Qieyuan Huang, Decheng Ding
R2,521 Discovery Miles 25 210 Ships in 10 - 15 working days

This volume comprises a collection of twenty written versions of invited as well as contributed papers presented at the conference held from 20-24 May 1996 in Beijing, China. It covers many areas of logic and the foundations of mathematics, as well as computer science. Also included is an article by M. Yasugi on the Asian Logic Conference which first appeared in Japanese, to provide a glimpse into the history and development of the series.

Twenty Five Years of Constructive Type Theory (Hardcover): Giovanni Sambin, Jan M Smith Twenty Five Years of Constructive Type Theory (Hardcover)
Giovanni Sambin, Jan M Smith
R2,736 Discovery Miles 27 360 Ships in 10 - 15 working days

Per Martin-Loef's work on the development of constructive type theory has been of huge significance in the fields of logic and the foundations of mathematics. It is also of broader philosophical significance, and has important applications in areas such as computing science and linguistics. This volume draws together contributions from researchers whose work builds on the theory developed by Martin-Loef over the last twenty-five years. As well as celebrating the anniversary of the birth of the subject it covers many of the diverse fields which are now influenced by type theory. It is an invaluable record of areas of current activity, but also contains contributions from N. G. de Bruijn and William Tait, both important figures in the early development of the subject. Also published for the first time is one of Per Martin-Loef's earliest papers.

Robust Technology with Analysis of Interference in Signal Processing (Hardcover, 2003 ed.): Telman Aliev Robust Technology with Analysis of Interference in Signal Processing (Hardcover, 2003 ed.)
Telman Aliev
R2,763 Discovery Miles 27 630 Ships in 18 - 22 working days

Robust Technology with Analysis of Interference in Signal Processing discusses for the first time the theoretical fundamentals and algorithms of analysis of noise as an information carrier. On their basis the robust technology of noisy signals processing is developed. This technology can be applied to solving the problems of control, identification, diagnostics, and pattern recognition in petrochemistry, energetics, geophysics, medicine, physics, aviation, and other sciences and industries. The text explores the emergent possibility of forecasting failures on various objects, in conjunction with the fact that failures follow the hidden microchanges revealed via interference estimates. This monograph is of interest to students, postgraduates, engineers, scientific associates and others who are concerned with the processing of measuring information on computers.

Walter Gautschi, Volume 2 - Selected Works with Commentaries (Hardcover, 2014 ed.): Claude Brezinski, Ahmed Sameh Walter Gautschi, Volume 2 - Selected Works with Commentaries (Hardcover, 2014 ed.)
Claude Brezinski, Ahmed Sameh
R4,277 Discovery Miles 42 770 Ships in 18 - 22 working days

Walter Gautschi has written extensively on topics ranging from special functions, quadrature and orthogonal polynomials to difference and differential equations, software implementations, and the history of mathematics. He is world renowned for his pioneering work in numerical analysis and constructive orthogonal polynomials, including a definitive textbook in the former, and a monograph in the latter area. This three-volume set, Walter Gautschi: Selected Works with Commentaries, is a compilation of Gautschi s most influential papers and includes commentaries by leading experts. The work begins with a detailed biographical section and ends with a section commemorating Walter s prematurely deceased twin brother. This title will appeal to graduate students and researchers in numerical analysis, as well as to historians of science. Selected Works with Commentaries, Vol. 1 Numerical Conditioning Special Functions Interpolation and Approximation Selected Works with Commentaries, Vol. 2 Orthogonal Polynomials on the Real Line Orthogonal Polynomials on the Semicircle Chebyshev Quadrature Kronrod and Other Quadratures Gauss-type Quadrature Selected Works with Commentaries, Vol. 3 Linear Difference Equations Ordinary Differential Equations Software History and Biography Miscellanea Works of Werner Gautschi Numerical Conditioning Special Functions Interpolation and Approximation Selected Works with Commentaries, Vol. 2 Orthogonal Polynomials on the Real Line Orthogonal Polynomials on the Semicircle Chebyshev Quadrature Kronrod and Other Quadratures Gauss-type Quadrature Selected Works with Commentaries, Vol. 3 Linear Difference Equations Ordinary Differential Equations Software History and Biography Miscellanea Works of Werner Gautschi

Algorithms and Architectures, Volume 1 (Hardcover): Cornelius T. Leondes Algorithms and Architectures, Volume 1 (Hardcover)
Cornelius T. Leondes
R2,282 Discovery Miles 22 820 Ships in 10 - 15 working days

This volume is the first diverse and comprehensive treatment of algorithms and architectures for the realization of neural network systems. It presents techniques and diverse methods in numerous areas of this broad subject. The book covers major neural network systems structures for achieving effective systems, and illustrates them with examples.
This volume includes Radial Basis Function networks, the Expand-and-Truncate Learning algorithm for the synthesis of Three-Layer Threshold Networks, weight initialization, fast and efficient variants of Hamming and Hopfield neural networks, discrete time synchronous multilevel neural systems with reduced VLSI demands, probabilistic design techniques, time-based techniques, techniques for reducing physical realization requirements, and applications to finite constraint problems.
A unique and comprehensive reference for a broad array of algorithms and architectures, this book will be of use to practitioners, researchers, and students in industrial, manufacturing, electrical, and mechanical engineering, as well as in computer science and engineering.
Key Features
* Radial Basis Function networks
* The Expand-and-Truncate Learning algorithm for the synthesis of Three-Layer Threshold Networks
* Weight initialization
* Fast and efficient variants of Hamming and Hopfield neural networks
* Discrete time synchronous multilevel neural systems with reduced VLSI demands
* Probabilistic design techniques
* Time-based techniques
* Techniques for reducing physical realization requirements
* Applications to finite constraint problems
* Practical realization methods for Hebbian type associative memory systems
*Parallel self-organizing hierarchical neural network systems
* Dynamics of networks of biological neurons for utilization in computational neuroscience
Practitioners, researchers, and students in industrial, manufacturing, electrical, and mechanical engineering, as well as in computer science and engineering, will find this volume a unique and comprehensive reference to a broad array of algorithms and architectures

New Developments in Approximation Theory - 2nd International Dortmund Meeting (IDoMAT) '98, Germany, February 23-27, 1998... New Developments in Approximation Theory - 2nd International Dortmund Meeting (IDoMAT) '98, Germany, February 23-27, 1998 (Hardcover)
Manfred Mueller, Etc, Martin Buhmann, Detlef Mache, Michael Felten
R2,459 Discovery Miles 24 590 Ships in 10 - 15 working days

Feller Semigroups, Bernstein type Operators and Generalized Convexity Associated with Positive Projections.- Gregory's Rational Cubic Splines in Interpolation Subject to Derivative Obstacles.- Interpolation by Splines on Triangulations Oleg Davydov.- On the Use of Quasi-Newton Methods in DAE-Codes.- On the Regularity of Some Differential Operators.- Some Inequalities for Trigonometric Polynomials and their Derivatives.- Inf-Convolution and Radial Basis Functions.- On a Special Property of the Averaged Modulus for Functions of Bounded Variation.- A Simple Approach to the Variational Theory for Interpolation on Spheres.- Constants in Comonotone Polynomial Approximation - A Survey.- Will Ramanujan kill Baker-Gammel-Wills? (A Selective Survey of Pade Approximation).- Approximation Operators of Binomial Type.- Certain Results involving Gammaoperators.- Recent research at Cambridge on radial basis functions.- Representation of quasi-interpolants as differential operators and applications.- Native Hilbert Spaces for Radial Basis Functions I.- Adaptive Approximation with Walsh-similar Functions.- Dual Recurrence and Christoffel-Darboux-Type Formulas for Orthogonal Polynomials.- On Some Problems of Weighted Polynomial Approximation and Interpolation.- Asymptotics of derivatives of orthogonal polynomials based on generalized Jacobi weights. Some new theorems and applications.- List of participants.

Cyber-Physical System Design from an Architecture Analysis Viewpoint - Communications of NII Shonan Meetings (Hardcover, 1st... Cyber-Physical System Design from an Architecture Analysis Viewpoint - Communications of NII Shonan Meetings (Hardcover, 1st ed. 2017)
Shin Nakajima, Jean-Pierre Talpin, Masumi Toyoshima, Huafeng Yu
R3,268 Discovery Miles 32 680 Ships in 10 - 15 working days

Providing a wide variety of technologies for ensuring the safety and dependability of cyber-physical systems (CPS), this book offers a comprehensive introduction to the architecture-centric modeling, analysis, and verification of CPS. In particular, it focuses on model driven engineering methods including architecture description languages, virtual prototyping, and formal analysis methods. CPS are based on a new design paradigm intended to enable emerging software-intensive systems. Embedded computers and networks monitor and control the physical processes, usually with the help of feedback loops where physical processes affect computations and vice versa. The principal challenges in system design lie in this constant interaction of software, hardware and physics. Developing reliable CPS has become a critical issue for the industry and society, because many applications such as transportation, power distribution, medical equipment and tele-medicine are dependent on CPS. Safety and security requirements must be ensured by means of powerful validation tools. Satisfying such requirements, including quality of service, implies having formally proven the required properties of the system before it is deployed. The book is concerned with internationally standardized modeling languages such as AADL, SysML, and MARTE. As the effectiveness of the technologies is demonstrated with industrial sample cases from the automotive and aerospace sectors, links between the methods presented and industrial problems are clearly understandable. Each chapter is self-contained, addressing specific scientific or engineering problems, and identifying further issues. In closing, it includes perspectives on future directions in CPS design from an architecture analysis viewpoint.

Computational Logic (Hardcover, 1999. 2nd Print): Ulrich Berger, Helmut Schwichtenberg Computational Logic (Hardcover, 1999. 2nd Print)
Ulrich Berger, Helmut Schwichtenberg
R4,257 Discovery Miles 42 570 Ships in 18 - 22 working days

Recent developments in computer science clearly show the need for a better theoretical foundation for some central issues. Methods and results from mathematical logic, in particular proof theory and model theory, are of great help here and will be used much more in future than previously. This book provides an excellent introduction to the interplay of mathematical logic and computer science. It contains extensively reworked versions of the lectures given at the 1997 Marktoberdorf Summer School by leading researchers in the field.
Topics covered include: proof theory and specification of computation (J.-Y. Girard, D. Miller), complexity of proofs and programs (S. R. Buss, S. S. Wainer), computational content of proofs (H. Schwichtenberg), constructive type theory (P. Aczel, H. Barendregt, R. L. Constable), computational mathematics, (U. Martin), rewriting logic (J. Meseguer), and game semantics (S. Abramski).

Advances in Computer Algebra - In Honour of Sergei Abramov's' 70th Birthday, WWCA 2016, Waterloo, Ontario, Canada... Advances in Computer Algebra - In Honour of Sergei Abramov's' 70th Birthday, WWCA 2016, Waterloo, Ontario, Canada (Hardcover, 1st ed. 2018)
Carsten Schneider, Eugene Zima
R2,680 Discovery Miles 26 800 Ships in 18 - 22 working days

This book discusses the latest advances in algorithms for symbolic summation, factorization, symbolic-numeric linear algebra and linear functional equations. It presents a collection of papers on original research topics from the Waterloo Workshop on Computer Algebra (WWCA-2016), a satellite workshop of the International Symposium on Symbolic and Algebraic Computation (ISSAC'2016), which was held at Wilfrid Laurier University (Waterloo, Ontario, Canada) on July 23-24, 2016. This workshop and the resulting book celebrate the 70th birthday of Sergei Abramov (Dorodnicyn Computing Centre of the Russian Academy of Sciences, Moscow), whose highly regarded and inspirational contributions to symbolic methods have become a crucial benchmark of computer algebra and have been broadly adopted by many Computer Algebra systems.

Integration of World Knowledge for Natural Language Understanding (Hardcover, 2012): Ekaterina Ovchinnikova Integration of World Knowledge for Natural Language Understanding (Hardcover, 2012)
Ekaterina Ovchinnikova
R2,672 Discovery Miles 26 720 Ships in 18 - 22 working days

This book concerns non-linguistic knowledge required to perform computational natural language understanding (NLU). The main objective of the book is to show that inference-based NLU has the potential for practical large scale applications. First, an introduction to research areas relevant for NLU is given. We review approaches to linguistic meaning, explore knowledge resources, describe semantic parsers, and compare two main forms of inference: deduction and abduction. In the main part of the book, we propose an integrative knowledge base combining lexical-semantic, ontological, and distributional knowledge. A particular attention is payed to ensuring its consistency. We then design a reasoning procedure able to make use of the large scale knowledge base. We experiment both with a deduction-based NLU system and with an abductive reasoner. For evaluation, we use three different NLU tasks: recognizing textual entailment, semantic role labeling, and interpretation of noun dependencies.

Number Theoretic Methods in Cryptography - Complexity lower bounds (Hardcover, 1999 ed.): Igor Shparlinski Number Theoretic Methods in Cryptography - Complexity lower bounds (Hardcover, 1999 ed.)
Igor Shparlinski
R1,507 Discovery Miles 15 070 Ships in 18 - 22 working days

The book introduces new techniques which imply rigorous lower bounds on the complexity of some number theoretic and cryptographic problems. These methods and techniques are based on bounds of character sums and numbers of solutions of some polynomial equations over finite fields and residue rings. It also contains a number of open problems and proposals for further research. We obtain several lower bounds, exponential in terms of logp, on the de grees and orders of * polynomials; * algebraic functions; * Boolean functions; * linear recurring sequences; coinciding with values of the discrete logarithm modulo a prime p at suf ficiently many points (the number of points can be as small as pI/He). These functions are considered over the residue ring modulo p and over the residue ring modulo an arbitrary divisor d of p - 1. The case of d = 2 is of special interest since it corresponds to the representation of the right most bit of the discrete logarithm and defines whether the argument is a quadratic residue. We also obtain non-trivial upper bounds on the de gree, sensitivity and Fourier coefficients of Boolean functions on bits of x deciding whether x is a quadratic residue. These results are used to obtain lower bounds on the parallel arithmetic and Boolean complexity of computing the discrete logarithm. For example, we prove that any unbounded fan-in Boolean circuit. of sublogarithmic depth computing the discrete logarithm modulo p must be of superpolynomial size.

Mathematical Control Theory - Deterministic Finite Dimensional Systems (Hardcover, 2nd ed. 1998): Eduardo D Sontag Mathematical Control Theory - Deterministic Finite Dimensional Systems (Hardcover, 2nd ed. 1998)
Eduardo D Sontag
R2,394 Discovery Miles 23 940 Ships in 10 - 15 working days

Geared primarily to an audience consisting of mathematically advanced undergraduate or beginning graduate students, this text may additionally be used by engineering students interested in a rigorous, proof-oriented systems course that goes beyond the classical frequency-domain material and more applied courses. The minimal mathematical background required is a working knowledge of linear algebra and differential equations. The book covers what constitutes the common core of control theory and is unique in its emphasis on foundational aspects. While covering a wide range of topics written in a standard theorem/proof style, it also develops the necessary techniques from scratch. In this second edition, new chapters and sections have been added, dealing with time optimal control of linear systems, variational and numerical approaches to nonlinear control, nonlinear controllability via Lie-algebraic methods, and controllability of recurrent nets and of linear systems with bounded controls.

Geometry, Mechanics, and Dynamics - The Legacy of Jerry Marsden (Hardcover, 2015 ed.): Dong Eui Chang, Darryl D Holm, George... Geometry, Mechanics, and Dynamics - The Legacy of Jerry Marsden (Hardcover, 2015 ed.)
Dong Eui Chang, Darryl D Holm, George Patrick, Tudor Ratiu
R3,703 Discovery Miles 37 030 Ships in 10 - 15 working days

This book illustrates the broad range of Jerry Marsden's mathematical legacy in areas of geometry, mechanics, and dynamics, from very pure mathematics to very applied, but always with a geometric perspective. Each contribution develops its material from the viewpoint of geometric mechanics beginning at the very foundations, introducing readers to modern issues via illustrations in a wide range of topics. The twenty refereed papers contained in this volume are based on lectures and research performed during the month of July 2012 at the Fields Institute for Research in Mathematical Sciences, in a program in honor of Marsden's legacy. The unified treatment of the wide breadth of topics treated in this book will be of interest to both experts and novices in geometric mechanics. Experts will recognize applications of their own familiar concepts and methods in a wide variety of fields, some of which they may never have approached from a geometric viewpoint. Novices may choose topics that interest them among the various fields and learn about geometric approaches and perspectives toward those topics that will be new for them as well.

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
WTF - Capturing Zuma: A Cartoonist's…
Zapiro Paperback R295 R272 Discovery Miles 2 720
Cancer - Navigating The Journey
Cherry Armstrong Paperback R390 R360 Discovery Miles 3 600
Cook, Eat, Repeat - Ingredients, Recipes…
Nigella Lawson Hardcover R785 R684 Discovery Miles 6 840
Loves Torment - The Torment Of Love
Charlotte Fay Hardcover R789 Discovery Miles 7 890
Security in Computing Systems…
Joachim Biskup Hardcover R4,154 Discovery Miles 41 540
Madam & Eve: Family Meeting
Stephen Francis Paperback R220 R203 Discovery Miles 2 030
Illustrations of the Bible, by Westall…
Richard Westall Paperback R604 Discovery Miles 6 040
Microsoft Windows 2000 Network and…
Corp. Paperback R875 R779 Discovery Miles 7 790
Charming Small Hotel Guides: Italy
Fiona Duncan Paperback R501 R420 Discovery Miles 4 200
MATLAB (R) for Engineers Explained
Fredrik Gustafsson, Niclas Bergman Hardcover R1,432 Discovery Miles 14 320

 

Partners