Joos Vandewalle – författare

Multi-Valued and Universal Binary Neurons deals with two new types of neurons: multi-valued neurons and universal binary neurons. These neurons are based on complex number arithmetic and are hence much more powerful than the typical neurons used in artificial neural networks. Therefore, networks with such neurons exhibit a broad functionality. They can not only realise threshold input/output maps but can also implement any arbitrary Boolean function. Two learning methods are presented whereby these networks can be trained easily. The broad applicability of these networks is proven by several case studies in different fields of application: image processing, edge detection, image enhancement, super resolution, pattern recognition, face recognition, and prediction. The book is hence partitioned into three almost equally sized parts: a mathematical study of the unique features of these new neurons, learning of networks of such neurons, and application of such neural networks. Most of this work was developed by the first two authors over a period of more than 10 years and was only available in the Russian literature. With this book we present the first comprehensive treatment of this important class of neural networks in the open Western literature. Multi-Valued and Universal Binary Neurons is intended for anyone with a scholarly interest in neural network theory, applications and learning. It will also be of interest to researchers and practitioners in the fields of image processing, pattern recognition, control and robotics.

This is the first book devoted entirely to total least squares. The authors give a unified presentation of the TLS problem. A description of its basic principles are given, the various algebraic, statistical and sensitivity properties of the problem are discussed, and generalizations are presented. Applications are surveyed to facilitate uses in an even wider range of applications. Whenever possible, comparison is made with the well-known least squares methods.A basic knowledge of numerical linear algebra, matrix computations, and some notion of elementary statistics is required of the reader; however, some background material is included to make the book reasonably self-contained.

‘I’he int,ernational Association for Cryptologic Research (IACK) organizes two inter- tioilill coiifcrcnces every year, one in Europe and one in the United States. EUROCRI’PT ’89 was the seventh European conference and was held in Houthalen, Belgium on April 10-13, 1989. With close to 300 participants, it was perhaps the largest open conferencr on c:rypt,ogra.phy ever held. The field of cryptography is expanding not only because of the increased vulnerability of computer systems and networks to a11 increasing range of threats, but also because of t1ic ra.pid progress in cryptographic methods, that t,he readers can witness by reading the book. The present proceedings contain nearly all contributions which were presented including the talks at the rump session. The chapters correspond to the sessions at the conference. It wa5 the first time that a rump session was organized on a Eurocrypt conference. Sixteen impromptu talks were given, and the authors were invited to submit short abstracts of their presentations. Because of the special character of this session, the editors have taken the liberty to shorten some of these.

This volume is based on a course held several times, andagain in 1993, at the ESAT Laboratorium of the Department ofElectrical Engineering at the Katholieke Universiteit Leuvenin Belgium. These courses are intended for both researchersin computer security and cryptography and for practitionersin industry and government.The contributors of the 1991 course were invited to submitrevised and updated versions of their papers for inclusionin a book. This volume is the final result; it is well-balanced between basic theory and real life applications,between mathematical background and juridical aspects, andbetween technical developments and standardization issues.Some of the topics are public key cryptography, hashfunctions, secure protocols, digital signatures, securityarchitectures, network security, and data encryptionstandards (DES).