Adaptive hypertext and hypermedia

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Andrew Dillon

Electronic documents offer the possibility of presenting virtually unlimited amounts of information to readers in forms which can be rapidly searched and structured to suit their needs. However, poor design and a failure to consider the user often combine to compromise the realization of this potential.; In this book, Dillon examines the issues involved in designing usable electronic documents from the perspective of the designer. It examines the human issues underlying information usage and emphasizes the issue of usability as the main problem in the electronic medium's failure to gain mass acceptance. In an attempt to provide a relevant description of the reading process that supports a more informed view of the issues, a series of studies examining readers and their views as well as uses of texts is reported. The results lead to the proposal of a user-centred framework that provides a broad qualitative model of the important issues for designers to consider when developing an electronic document.; "Designing Usable Electronic Text" focuses attention on aspects that are central to usability, and concludes with an analysis of the likely uses of such a framework and the realistic potential for electronic documents.

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Armin Gruen, Thomas S. Huang

This book brings together concepts and approaches from the fields of photogrammetry and computer vision. In particular, it examines techniques relating to quantitative image analysis, such as orientation, camera modelling, system calibration, self-calibration and error handling. The chapters have been contributed by experts in the relevant fields, and there are examples from automated inspection systems and other real-world cases. The book provides study material for students, researchers, developers and practitioners.

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Robin Sahner, Kishor S. Trivedi, Antonio Puliafito

Performance and Reliability Analysis of Computer Systems: An Example-Based Approach Using the SHARPE Software Package provides a variety of probabilistic, discrete-state models used to assess the reliability and performance of computer and communication systems. The models included are combinatorial reliability models (reliability block diagrams, fault trees and reliability graphs), directed, acyclic task precedence graphs, Markov and semi-Markov models (including Markov reward models), product-form queueing networks and generalized stochastic Petri nets. A practical approach to system modeling is followed; all of the examples described are solved and analyzed using the SHARPE tool. In structuring the book, the authors have been careful to provide the reader with a methodological approach to analytical modeling techniques. These techniques are not seen as alternatives but rather as an integral part of a single process of assessment which, by hierarchically combining results from different kinds of models, makes it possible to use state-space methods for those parts of a system that require them and non-state-space methods for the more well-behaved parts of the system. The SHARPE (Symbolic Hierarchical Automated Reliability and Performance Evaluator) package is the `toolchest' that allows the authors to specify stochastic models easily and solve them quickly, adopting model hierarchies and very efficient solution techniques. All the models described in the book are specified and solved using the SHARPE language; its syntax is described and the source code of almost all the examples discussed is provided. Audience: Suitable for use in advanced level courses covering reliability and performance of computer and communications systems and by researchers and practicing engineers whose work involves modeling of system performance and reliability.

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Thomas Plagemann, Vera Goebel (eds

This book constitutes the refereed proceedings of the 5th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services, IDMS'98, held in Oslo, Norway, in September 1998. The 23 revised full papers presented were carefully selected from a total of 68 submissions. Also included are seven position statements. The book is divided into topical sections on distributed multimedia applications; platforms for collaborative systems; MPEG; coding for WWW, wireless, and mobile environments; QoS and user aspects; flow control, congestion control, and multimedia streams; multimedia servers, documents, and authoring; and storage servers.