Springer springer nov 2002 (461 resultados)

Buch. Condición: Neu. Neuware - The last few decades have witnessed tremendous developments in nonlinear control theory. One of the most important of these is the model-based method of feedback linearisation in which a nonlinear system is transformed into a linear system by means of state feedback and nonlinear transformations. After feedback linearisation, a system can be dealt with by linear controller design. The extension of these techniques to include MIMO systems allows for the further simplification of controller design by decoupling the system. Strategies for Feedback Linearisation demonstrates this powerful technique in the light of research on neural networks which allow the identification of nonlinear models without the complicated and costly development of models based on physical laws. Dynamic or recurrent neural networks have inherent properties that allow them to approximate nonlinear dynamic systems. Strategies for the identification of nonlinear systems using such neural networks are presented in this monograph together with the use of such models for the design and application of input-output linearisation and decoupling methods. Strategies for Feedback Linearisation is written to serve academic and industrial researchers in non-linear control and system identification and practising control engineers interested in their application to real-world industrial systems. The reader will gain a balanced view of theoretical and practical issues: relevant mathematical proofs are provided as are case studies illustrating design and application issues.…

Buch. Condición: Neu. Neuware - With China's accession to the WTO in Spring 2002 it is essential that Western investors and business people get an effective 'tool kit' which enables them to succeed in the highly competitive Chinese market and to deal with the issues and changes that the WTO will bring. As a guide for western investors this book gives the answer to the 100 most crucial questions on operating or restructuring business in China. The question and answer format allows the reader to rapidly select information for a specific situation.…

Buch. Condición: Neu. Neuware - This book addresses a part of a problem. The problem is to determine the architecture of cognition, that is, the basic structures and mechanisms underlying cognitive processing. This is a multidimensional problem insofar as there appear to be many distinct types of mechanisms that interact in diverse ways during cognitive processing. Thus, we have memory, attention, learning, sensation, perception, and who knows what else, interacting to produce behavior. As a case in point, consider a bit of linguistic behavior. To tell a friend that I think Greg won a stunning victory, I must evidently rely on various bits of information stored in my memory, including who my friends are, who Greg is, what he won, and what natural languages I share with my friend. I must sense and perceive that my friend is within hearing distance, how loud I need to speak, how loud I am speaking, and whether my friend is paying attention. I must avail myself of what I know about the language I share with my friend, along with innumerable principles about human 'folk psychology. ' This book does not address the full range of contemporary theorizing about cognitive architecture, but only a part. It addresses theories of cognitive architecture that hypothesize that there exist cognitive representations, then begins to explore the possible structure of these representations. One of the leading hypotheses concerning the structure of cognitive representations is that it is akin to that found in symbolic logic.…

Buch. Condición: Neu. Neuware - Peroxisome Proliferator Activated Receptors (PPARs) attract great attention in light of the wide spectrum of genes of biological and medical relevance identified as under their control. As a consequence, our knowledge of the role of these receptors in physiology and pathology continues to grow at a fast pace and PPARs have become an interesting target for the treatment of many pathological conditions, including diabetes and atherosclerosis. This volume provides an authoritative view of the current clinical and scientific developments within this evolving area of study.…

Buch. Condición: Neu. Neuware - Taking Stock in Delinquency is the comprehensive synthesis of the empirical findings of seven important ongoing longitudinal studies of delinquency. The seven projects included in this volume represent much of the diversity found in individual-based panel studies of antisocial behavior. Individually and collectively, the results of these investigations have been published in a wide range of disciplinary outlets, thus making it difficult to identify common themes and general principles. This volume intends to provide a comprehensive and unified picture of empirical results, both within these studies and across them. One of the fundamental purposes of Taking Stock in Delinquency is to examine the extent to which these studies answer the basic question of the origins of delinquent and criminal careers despite their varying guiding theories, methods, and settings.Taking Stock in Delinquency is an important resource for criminologists, psychologists, sociologists, and upper-level students on juvenile delinquency, criminology, developmental psychology, and deviant behavior.…

Buch. Condición: Neu. Neuware - The purpose ofthis book isto provide acritical appraisal oftheconcept thatschizophreniacan becaused by viralinfections. The ability of viruses to cause psychiatric symptoms is not in question - the mental depression following a bout with mononucleosis or hallucinations associated with herpesencephalitisarewell-described examples. However,aviraloriginfor chronic disorders such as autism, schizophrenia, and bipolar disorder, is another matter. The claim of an infectious etiology for these disorders has beenmetinthemainstream scientific community byavagueskepticism that occasionally erupts into stringent criticism. Too often, however, the viral hypotheses of these disorders is simply disregarded; marginalized with the hopethat itwillgoaway sothatthe 'serious' researchaimed atuncovering therealcauseoftheseillnesses willnotloseitsfocus.This beingsaid,much of the criticism is valid, and as a researcher with formal training in both neuroscience and viral immunology, I view the proposed viral etiology of thesedisorderswithaskepticaleye. Nevertheless, one cannot ignore the growing number of well-performed studies pointing to the role of viral infections as important antecedents of schizophreniaand other disorders inthe schizophreniaspectrum. Inthe last 30 years there have been hundreds of articles in peer-reviewed journals presenting evidenceorpositingtheoriestosuggestthatatleastsomecasesof schizophrenia have a viral origin. Moreover, many schizophrenia experts have been calling for the recognition that schizophrenia isa heterogeneous group of disorders that may have different causes. This idea of disease heterogeneity is reaching a crescendo, and there is undoubtedly a place for viruses among alternative etiologies; but we have to look. The intellectual climate tolooknowisbetterthanitwas20yearsago,inpartbecause inthe last 2 decades a number of chronic diseases of unknown etiology (e.g. gastric ulcers, Kaposi's sarcoma, hepatocellular carcinoma) have been ascribedtoinfectiouscauses.…

Buch. Condición: Neu. Neuware - Over the past 20 years, the field of information systems has grown dramatically in theoretical diversity and global reach. This growth is reflected in the language that policy makers and organizational stakeholders use when they talk about their IT plans. As information technology penetrates further into organizational and global life, it becomes ever more important to articulate assumptions embedded in the discourse. This will help to clarify the complex and yet conceptually improvised or pasted-up worldview that becomes embodied in systems. The assumptions point to particular domains of discourse. The discourse sets up conventions and boundaries. It thus shapes what can or cannot legitimately be talked about, researched, addressed, or solved within the scope of IT. A number of practical and theoretical topics are discussed in detail, including: \*Globalization, development, and space; \*Mobilization of power; \*ERP systems; \*IS planning and projects; \*Critical research and the study of discourse; \*Public institutions; \*Analytical frameworks. This book contains the selected proceedings of the Working Conference on Global and Organizational Discourse About Information Technology, sponsored by the International Federation for Information Processing (IFIP) and held in Barcelona, Spain in December 2002.…

Buch. Condición: Neu. Neuware - Is there only one bioethics Is a global bioethics possible Or, instead, does one encounter a plurality of bioethical approaches shaped by local cultural and national traditions Some thirty years ago a field of applied ethics emerged under the rubric `bioethics'. Little thought was given at the time to the possibility that this field bore the imprint of a particular American set of moral commitments. This volume explores the plurality of moral perspectives shaping bioethics. It is inspired by Kazumasa Hoshino's critical reflections on the differences in moral perspectives separating Japanese and American bioethics. The essays include contributions from Hong Kong, China, Japan, Texas, the United States, Germany, Switzerland, and Italy. The volume offers a rich perspective of the range of approaches to bioethics. It brings into question whether there is unambiguously one ethics for bioethics to apply. …

Buch. Condición: Neu. Neuware - The literature on equilibrium behavior of customers and servers in queuing systems is rich. However, there is no comprehensive survey of this field. Moreover, what has been published lacks continuity and leaves many issues uncovered. One of the main goals of this book is to review the existing literature under one cover. Other goals are to edit the known results in a unified manner, classify them and identify where and how they relate to each other, and fill in some gaps with new results. In some areas we explicitly mention open problems. We hope that this survey will motivate further research and enable researchers to identify important open problems. The models described in this book have numerous applications. Many examples can be found in the cited papers, but we have chosen not to include applications in the book. Many of the ideas described in this book are special cases of general principles in Economics and Game Theory. We often cite references that contain more general treatment of a subject, but we do not go into the details. we have highlighted the results For each topic covered in the book, that, in our opinion, are the most important. We also present a brief discussion of related results. The content of each chapter is briefly de scribed below. Chapter 1 is an introduction. It contains basic definitions, models and solution concepts which will be used frequently throughout the book.…

Buch. Condición: Neu. Neuware - Africa, the cradle of many old civilizations, is the second largest world continent, and the homeland of nearly one-eighth of the world population. Despite Africa's richness in natural resources, the average income per person, after excluding a few countries, is the lowest all over the world, and the percentage of inhabitants infected with contagious diseases is the highest. Development of Africa to help accommodate the ever-increasing population and secure a reasonable living standard to all inhabitants, though an enormous challenge is extremely necessary. Water is the artery of life, without it all living creatures on earth cannot survive. As such, a thorough knowledge of the meteorological and hydrological processes influencing the yield and quality of the water resources, surface and subsurface, and their distribution and variability in time and space is unavoidable for the overall development of any part of the world. It is highly probable that the said knowledge is at present a top priority to Africa, a continent that has been for so long-and probably still-devastated by the endless ambitions of colonial powers not to forget the corruption and destruction practiced by the internal powers, at least in some countries. The present book 'Hydrology and Water Resources of Africa' is written with the aim of bringing together in one volume a fair amount of knowledge any professional involved in hydrology and water resources of Africa needs to know.…

Buch. Condición: Neu. Neuware - L'intervento chirurgico rappresenta la tecnica elettiva per il trattamento delle fratture della regione trocanterica. Gli Autori pertanto presentano le metodiche di sintesi più utilizzate descrivendone, con ampia iconografia, le tecniche chirurgiche.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Based on a graduate course given by the author at Yale University this book deals with complex analysis (analytic capacity), geometric measure theory (rectifiable and uniformly rectifiable sets) and harmonic analysis (boundedness of singular integral operators on Ahlfors-regular sets). In particular, these notes contain a description of Peter Jones' geometric traveling salesman theorem, the proof of the equivalence between uniform rectifiability and boundedness of the Cauchy operator on Ahlfors-regular sets, the complete proofs of the Denjoy conjecture and the Vitushkin conjecture (for the latter, only the Ahlfors-regular case) and a discussion of X. Tolsa's solution of the Painlevé problem. 140 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book provides readers with the tools needed to understand the physical basis of special relativity and will enable a confident mathematical understanding of Minkowski's picture of space-time. It features a large number of examples and exercises, ranging from the rather simple through to the more involved and challenging. Coverage includes acceleration and tensors and has an emphasis on space-time diagrams. 208 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -What was British imperialism and was it an important element of modern globalization Were economic, political or military factors paramount in imperial expansion Do post-colonial theories assist or mislead historians How have histories of imperialism changed, and are current analyses satisfactory Robert Johnson's invaluable guide offers a succint, easy-to-follow introduction to the key issues and historiography of British imperialism from its origins to the conversion to the Commonwealth. British Imperialism- provides concise introductions to key questions and debates- takes a question-based approach to analysis of the material- offers an assessment of the significance of economic, military and political factors in imperial expansion and decolonization- presents critical appraisals of the most recent controversies including neo-colonialism, cultural imperialism, post-colonial theory, and gender and imperialism- includes a useful guide to further readingUsing vivid examples, Johnson clearly explains the nature of British imperialism and enables the reader to understand the causes, course and immediate consequences of the British-colonial encounter on a world-wide scale. His book is an essential starting point for all those new to the subject and a helpful introduction to more recent debates. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book presents the revised version of seven tutorials given at the NETWORKING 2002 Conference in Pisa, Italy in May 2002.The lecturers present a coherent view of the core issues in the following areas:- peer-to-peer computing and communications- mobile computing middleware- network security in the multicast framework- categorizing computing assets according to communication patterns- remarks on ad-hoc networking- communication through virtual technologies- optical networks. 208 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Phase transformations in solids typically lead to surprising mechanical behaviour with far reaching technological applications. The mathematical modeling of these transformations in the late 80s initiated a new field of research in applied mathematics, often referred to as mathematical materials science, with deep connections to the calculus of variations and the theory of partial differential equations. Thisvolume gives a brief introduction to the essential physical background, in particular for shape memory alloys and a special class of polymers (nematic elastomers).Then the underlying mathematical concepts are presented with a strong emphasis on the importance of quasiconvex hulls of sets for experiments, analytical approaches, and numerical simulations. 228 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This challenging work develops a radical theory of the new world order to argue that as the globalization of power intensifies, so too do globalized forms of resistance. Stephen Gill explains how the dialectic of power and resistance involves issues of governance, economy and culture. This struggle is reflected in the questions of American supremacy, the power of capital, market civilization and surveillance power. Thus new forms of political agency and collective action are emerging to challenge dominant powers. 238 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -John Sherman is the only work of realistic fiction Yeats ever completed. The novelette contains many biographical elements and is of interest for its treatment of Yeats's recurring themes. It examines the debate between nationality and cosmopolitan and looks at the conflict between the self and the Anti-self. Dhoya depicts a liaison between a mortal and a fairy, a motif that recurs in Yeats's poetry and other works. The texts are supplemented by an introduction and detailed explanatory notes by the editor, Richard Finneran. 105 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Rethinking Human Rights brings together a team of authors from fields as diverse as political theory, peace studies, international law and media studies - concerned with a new international agenda of human rights promotion. The collection presents an original and tightly argued critique of current trends and deals with a range of questions concerning the implication of human rights approaches for humanitarian aid, state sovereignty, international law, democracy and political autonomy. 246 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Over more than two centuries the development of economic theory has created a wide array of different theories, concepts and results. Nevertheless, there is no general theory, which mrifies these varied theories into a comprehensive one. Economics has been split between partial and conflicting representations of the functioning of market economies. We have a collection of separate theories such as the Marxian economics, the Keynesian economics, the general equilibrium theory, and the neoclassical growth theory. These diverse economic theories have co-existed but not in a structured relationship with each other. Economic students are trained to understand economic phenomena by severally incompatible theories one by one in the same course. Since the end of Second Wodd War many crises in economic theory have been announced. The economist experienced the crisis of the general equilibrium economics, the crisis of the neoclassical growth economics, the crisis of the Keynesian economics, not to mention the crises of the Marxian economics. It is quite reasonable to expect the loss of confidence in theoretical economics even among professional economists after so many crises in a very short period of time. But a crisis offers new opportmrities for change, either for better or for worse. The past crises in theoretical economics may be perceived as a historical opportmrity to construct a general economic theory by which the traditional theories are integrated into a higher whole. 248 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book explains key financial concepts, mathematical tools and theories of mathematical finance. It is organized in four parts. The first brings together a number of results from discrete-time models. The second develops stochastic continuous-time models for the valuation of financial assets (the Black-Scholes formula and its extensions), for optimal portfolio and consumption choice, and for obtaining the yield curve and pricing interest rate products. The third part recalls some concepts and results of equilibrium theory and applies this in financial markets. The last part tackles market incompleteness and the valuation of exotic options. 340 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book focuses on changes in environmental and economic policies in six developing countries. It shows how domestic politics interact with international actors such as multilateral institutions. It offers lively accounts of the behaviour of political actors, interest groups and the civil society, in particular environmentalists. It shows how ideas such as those of neoliberal economics affect policymaking, in particular during or after crisis, but also how social protest and demands for sustainable development are mobilized. 251 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the papers presented at the 5th International Conference on Discovery Science (DS 2002) held at the M ovenpick Hotel, Lub eck, G- many, November 24 26, 2002. The conference was supported by CorpoBase, DFKI GmbH, and JessenLenz. The conference was collocated with the 13th International Conference on - gorithmic Learning Theory (ALT 2002). Both conferences were held in parallel and shared ve invited talks as well as all social events. The combination of ALT 2002 and DS 2002 allowed for a comprehensive treatment of recent de- lopments in computational learning theory and machine learning some of the cornerstones of discovery science. In response to the call for papers 76 submissions were received. The program committee selected 17 submissions as regular papers and 29 submissions as poster presentations of which 27 have been submitted for publication. This selection was based on clarity, signi cance, and originality, as well as on relevance to the rapidly evolving eld of discovery science. 484 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this monograph, we study the problem of high-dimensional indexing and systematically introduce two efficient index structures: one for range queries and the other for similarity queries. Extensive experiments and comparison studies are conducted to demonstrate the superiority of the proposed indexing methods.Many new database applications, such as multimedia databases or stock price information systems, transform important features or properties of data objects into high-dimensional points. Searching for objects based on these features is thus a search of points in this feature space. To support efficient retrieval in such high-dimensional databases, indexes are required to prune the search space. Indexes for low-dimensional databases are well studied, whereas most of these application specific indexes are not scaleable with the number of dimensions, and they are not designed to support similarity searches and high-dimensional joins. 168 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the papers selected for presentation at the Thirteenth - nual International Symposium on Algorithms and Computation (ISAAC 2002) tobeheldinVancouver,CanadaonNovember21-23,2002.Thisisthe rsttime thatISAAChasventuredintoNorthAmerica,asitistraditionallyheldinthe Asia-Paci c region. ISAAC is an annual international symposium that covers the very broad areas of algorithms and computing in general. The scope of this symposium - cludes both theoretical and applied research from these elds. The main aim of the symposium is to promote the exchange of ideas in this active research community. The speci c themes targeted for ISAAC 2002 were Computational Geometry,AlgorithmsandDataStructures,ApproximationAlgorithms,Ran- mizedAlgorithms,GraphDrawingandGraphAlgorithms,Combinatorial- timization,ComputationalBiology,ComputationalFinance,Cryptography,and Parallel and Distributed Computing. Inresponsetoourcallforpapers,wereceivedcloseto160submissions.The challenging task of selecting the papers for presentation was performed by the membersofourprogramcommittee,theirsupportsta ,andreferees.Allof them deserve special thanks for their hard work in the di cult task of selecting amere54papersfromthehigh-qualitysubmissions.Unfortunately,duetothe timeconstraintsimposedbyathree-dayconference,wewereforcedtoturn away many excellent papers. John Iacono will receive the traditionalbestpaperaward for his paper entitled KeyIndependentOptimality. Our three invited speakers are Luc Devroye from McGill University who will speak onRandomTries,J anos Pach from New York University who will speak onMonotoneDrawingsofPlanarGraphs,andNic- las Pippenger from the University of British Columbia who will speak on the ExpectedAcceptanceCountsforFiniteAutomatawithAlmostUniformInput. No conference can succeed without exceptional local organization. For the often overlooked and thankless task of nding a suitable venue and banquet location,dealingwiththelogisticsofregistration,organizinglunchesandco ee, etc.,wewouldliketothankthetheorganizingcommittee,NadjaRence,andOlga Stachova for all their e orts above and beyond the call of duty. We thank our sponsorsSimonFraserUniversity,thePaci cInstituteofMathematicalSciences, the institute for Mathematics of Information Technology and Complex Systems, andBajaiInc.fortheirgeneroussupport.Finally,wethankalltheauthorsand participants. We hope this edition of ISAAC will be a success. 676 pp. Englisch. …

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains the papers presented at the 13th Annual Conference on Algorithmic Learning Theory (ALT 2002), which was held in Lub eck (Germany) during November 24-26, 2002. The main objective of the conference was to p- vide an interdisciplinary forum discussing the theoretical foundations of machine learning as well as their relevance to practical applications. The conference was colocated with the Fifth International Conference on Discovery Science (DS 2002). The volume includes 26 technical contributions which were selected by the program committee from 49 submissions. It also contains the ALT 2002 invited talks presented by Susumu Hayashi (Kobe University, Japan) on 'Mathematics Based on Learning', by John Shawe-Taylor (Royal Holloway University of L- don, UK) on 'On the Eigenspectrum of the Gram Matrix and Its Relationship to the Operator Eigenspectrum', and by Ian H. Witten (University of Waikato, New Zealand) on 'Learning Structure from Sequences, with Applications in a Digital Library' (joint invited talk with DS 2002). Furthermore, this volume - cludes abstracts of the invited talks for DS 2002 presented by Gerhard Widmer (Austrian Research Institute for Arti cial Intelligence, Vienna) on 'In Search of the Horowitz Factor: Interim Report on a Musical Discovery Project' and by Rudolf Kruse (University of Magdeburg, Germany) on 'Data Mining with Graphical Models'. The complete versions of these papers are published in the DS 2002 proceedings (Lecture Notes in Arti cial Intelligence, Vol. 2534). ALT has been awarding the E. 432 pp. Englisch.…

Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This is the most thorough treatment of normal forms currently existing in book form. There is a substantial gap between elementary treatments in textbooks and advanced research papers on normal forms. This book develops all the necessary theory 'from scratch' in just the form that is needed for the application to normal forms, with as little unnecessary terminology as possible. 524 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The growth of the Internet and the availability of powerful computers and hi- speed networks as low-cost commodity components are changing the way we do computing. These new technologies have enabled the clustering of a wide variety of geographically distributed resources, such as supercomputers, storage systems, data sources, and special devices and services, which can then be used as a uni ed resource. Furthermore, they have enabled seamless access to and interaction among these distributed resources, services, applications, and data. The new paradigm that has evolved is popularly termed 'Grid computing'. Grid computing and the utilization of the global Grid infrastructure have presented signi cant challenges at all levels, including application development, progr- ming models, systems, infrastructures and services, networking, and security, and have led to the development of a global research community. Grid 2002 is the third in a series of workshops developed to provide a - rum for this growing Grid Computing research community. Grid 2000, the rst workshop in the series, was chaired by Rajkumar Buyya and Mark Baker, and was held in conjunction with HiPC 2002 in Bangalore, India. Grid 2001 (Chair: Craig A. Lee) and Grid 2002 were held in conjunction with Supercomputing, the world's premier meeting for high-performance computing. 336 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book constitutes the refereed proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2002, held in Singapore, in December 2002.The 34 revised full papers presented together with two invited contributions were carefully reviewed and selected from 173 submissions on the basis of 875 review reports. The papers are organized in topical sections on public key cryptography, authentication, theory, block ciphers, distributed cryptography, cryptanalysis, public key cryptanalysis, secret sharing, digital signatures, applications, Boolean functions, key management, and ID-based cryptography. 596 pp. Englisch.…

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book provides an overview of interfaces to social information spaces, illustrated by several contemporary systems including Usenet News and CoWebs. Beginning with a general outline of those systems and a history of Usenet News, it looks at the problems of exploring virtual communities and distributed information systems, and of finding information in electronic environments. It outlines the successes and failures of traditional approaches like information filtering, collaborative filtering and information retrieval, and assesses new approaches such as visualisations of social processes and social navigation.Among the key questions covered are:- What aspects of an online group are important to its participants - How can the specific characteristics of a social information space be used to improve the design of the interface From Usenet to CoWebs will be essential reading for practitioners working on information spaces, conferencing systems, virtual communities and innovative interfaces to information spaces. It will also provide useful background reading for anyone studying or researching in these areas. 276 pp. Englisch.…