Search (70 results, page 1 of 4)

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Abstract

Attemps to elaborate the relationships among tasks, user types, and tools for hypertext. A computer system was built for automatically converting books into hypertext and one book converts into Emaccs-Info, Guide, HyperTies, and a variant of SuperBook, called MaxiBook. Compares the performance of 3 classes of users - expers, novices and trainees - with different tasks on these different delivery vehicles, the tasks involving one search question and one browse question

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Abstract

Presents a model for an electronic book (hyper-book). Hyper-books are electronic books defined on the basis of the paper book metaphor. Gives a formal definition of the hyper-book model as a dynamic system. The model was implemented in a working system, and evaluated with a group of users. The evaluation has confirmed that the adoption of the book metaphor is very effective, as it guarantees ease of using and understanding the system

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Abstract

This article examines searcher behavior and affective response to a hypertext-based bibliographic information retrieval system called HyperLynx for searchers with different search skills and backgrounds. Search times and number of nodes visited were recorded for five specified search queries, and views of the system were recorded for each searcher. No significant differences were found in search times or user satisfaction with the system, indicating that a hypertext-based approach to bibliographic retrieval could be appropriate for a variety of searcher experience levels

Source

Journal of the American Society for Information Science. 46(1995) no.1, S.22-29

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Abstract

A provocative exploration of the fundamental differences between the printed book and electronic text and their implications for reading and understanding texts

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Abstract

This is the first comprehensive book on hypermedia nd the WWW that icludes features of the 2nd generation systems. Definitions, history, current technology and problems, leading-edge initiatives, future applications, all these are seen as an unfolding of a millenial communication medium that is not serving but involving even the non-technical person in a very technical world. Much of the promise of hypermedia lies in its applications to education, and this receives prominence in the book. The new hypermedia system 'HyperWave' is described in detail. The book's vision, organization, and easy-to-read style make it suitable as a source for information for the practitioner and the general reader. It may also serve both as a reference book for researchers and as a textbook

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Abstract

How to design and develop, maintain and use a hypermedia interface is the topic of this book. Based on a ESPRIT workshop, it discusses actual methodological issues comprising theoretical design aspects as well as detailed practical design proposals

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Abstract

The bibliography is arranged under the following headings: alternatives to HyperCard, bibliographies, biographies, books and book reviews, dictionaries, hardware, interviews, library applications, optical disc-related, theoretical and technical aspects and user's groups.

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Abstract

When the Web was invented, it was touted as a novel nonlinear medium for the written word. No longer would we be constrained by linear presentations! Hyperlinks would allow us to jump haphazardly from page to page, chapter to chapter, idea to idea! Texts would no longer need to run from beginning to end! This is misleading. A printed book is also multidimensional and potentially nonlinear. We can open it to any page, from any other page, for any reason. We can open several books at once. In fact, what makes a book special is its combination of linear structure (the order of the words) and nonlinear physicality (the bound papers). This linear/nonlinear duality is enhanced further by the index, which maps linearly sequenced pages in a nonlinear, informationally ordered structure (architecture). In truth, the online environment is crippled by an absence of linear structure. Imagine selecting a hard cover book, tearing off the covers, ripping pages into small pieces, and throwing them in a box. That box is like a computer file system, and the paper scraps are Web documents. Only one scrap can be retrieved from the box at a time, and it must be replaced before another can be accessed. Page numbers are meaningless. Global context is destroyed. And without page numbers or context, what happens to the index?

Issue

Beyond book indexing: how to get started in Web indexing, embedded indexing and other computer-based media. Ed. by D. Brenner u. M. Rowland.

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Abstract

Natural language generation techniques can be used to dynamically produce hypertext dynamic catalogues on the Web, resulting in DYNAMIC HYPERTEXT. A dynamic hypertext document can be tailored more precisely to a particular user's needs and background, thus helping the user to search more effectively. Describes the automatic generation of WWW documents and illustrates with 2 implemented systems

Date

1. 8.1996 22:08:06

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Abstract

This book constitutes a coherent anthology consisting of invited chapter-length papers on intelligent hypertext techniques with special emphasis on how to apply these techniques to the WWW. The book provides an introductory preface, chapters on information comprehension through hypertext, efficient techniques for adaptive hypermedia, annotated 3D environments on the Web, user models for customized hypertext, conceptual analysis of hypertext, two-level models of hypertext, the TELLTALE dynamic hypertext environment, hypertext for collaborative authoring, information retrieval and information agents

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Abstract

The subject of this book is the relationship between people and interactive media. Written by one of the world's leading experts on this subject, this book explores how hypermedia, groupware, and networks change the way in which people, gropus and organizations work and interact. Its wide-ranging focus discusses the emergence of new technologies and demonstrates by considering real-life case studies the impact each has had on the way we view and interact with colleagues and information. With its emphasis on actual examples of usage, the author provides both practitioners and students with a fascinating glimpse of the future of these media and their applications.

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Abstract

When document components are classified and then recombined during document re-use, a semantic net may serve as the classification language. A theory of analogical inheritance, applied to this semantic net, guides the reorganisation of document components. Authors index paragraphs from various sources with node-link-node triples from a semantic net and then use programs to transverse the semantic net and generate various outlines. The program examines node and link names in deciding which path to take. Describes how these techniques helped in the re-use: parts of an existing book to write a new one

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Abstract

Electronic texts offer new ways to store, retrieve, update, and cross-link information. Hypermedia documents require new levels of organization and strict discipline from authors, editors, and managers. This book provides a step-by step guide to all aspects of hypermedia development, from strategic decision-making to editing formats and production methods

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Abstract

With the growth of hypertext and multimedia applications that support and encourage browsing it is time to take a penetrating look at browsing behaviour. Several dimensions of browsing are exemined, to find out: first, what is browsing and what cognitive processes are associated with it: second, is there a browsing strategy, and if so, are there any differences between how subject-area experts and novices browse; and finally, how can this knowledge be applied to improve the design of hypertext systems. Two groups of students, subject-area experts and novices, were studied while browsing a Macintosh HyperCard application on the subject The Vietnam War. A protocol analysis technique was used to gather and analyze data. Components of the GOMS model were used to describe the goals, operators, methods, and selection rules observed: Three browsing strategies were identified: (1) search-oriented browse, scanning and and reviewing information relevant to a fixed task; (2) review-browse, scanning and reviewing intersting information in the presence of transient browse goals that represent changing tasks, and (3) scan-browse, scanning for interesting information (without review). Most subjects primarily used review-browse interspersed with search-oriented browse. Within this strategy, comparisons between subject-area experts and novices revealed differences in tactics: experts browsed in more depth, seldom used referential links, selected different kinds of topics, and viewed information differently thatn did novices. Based on these findings, suggestions are made to hypertext developers

Source

IEEE transactions on systems, man and cybernetics. 22(1992) no.5, S.865-884

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Abstract

Navigating through hyperlinks within a Web site to look for information from one of its Web pages without the support of a site map can be inefficient and ineffective. Although the content of a Web site is usually organized with an inherent structure like a topic hierarchy, which is a directed tree rooted at a Web site's homepage whose vertices and edges correspond to Web pages and hyperlinks, such a topic hierarchy is not always available to the user. In this work, we studied the problem of automatic generation of Web sites' topic hierarchies. We modeled a Web site's link structure as a weighted directed graph and proposed methods for estimating edge weights based on eight types of features and three learning algorithms, namely decision trees, naïve Bayes classifiers, and logistic regression. Three graph algorithms, namely breadth-first search, shortest-path search, and directed minimum-spanning tree, were adapted to generate the topic hierarchy based on the graph model. We have tested the model and algorithms on real Web sites. It is found that the directed minimum-spanning tree algorithm with the decision tree as the weight learning algorithm achieves the highest performance with an average accuracy of 91.9%.

Date

22. 3.2009 12:51:47

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Footnote

Übers. des Titels: Hypermedia, the successor to the book, film and video

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Footnote

Vgl.: http://www.tandfonline.com/doi/book/10.1081/E-ELIS3.

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Abstract

Discussions and presentations dealt with attempts to clarify the different concepts in multimedia, object-oriented methods for multimedia, multimedia from psychological perspectives, synchronization problems in multimedia, ccoperative work using multimedia, multimedia interface builders, and so on. There was also a small exhibition presenting 4 different systems ranging from commercial products to research prototypes. The book is divided into 8 parts, on fundamentals, interaction, synchronization, demonstration presentations, cooperative work, information systems, multimedia systems and conclusions

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Date

19.10.1995 10:22:53

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