Search (18 results, page 1 of 1)

  • × theme_ss:"Hypertext"
  • × author_ss:"Rada, R."
  1. Rada, R.: Hypertext and paper : a special synergy (1991) 0.03 
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    Abstract
    Some people argure that hypertext is easy to write, is hard to create by converting existing text into hypertext, and has a massive market. This paper argures the contrary. First, Hypertext is hard to write. Second, automatically converting a text into hypertext is, to a first approximation, easy. Third, successful marketing of hypertext depends on having a large volume of material that is also available in paper form
    Source
    International journal of information management. 11(1991) no.1, S.14-22
    Type
    a
  2. You, G.-N:; Rada, R.: ¬A systematic approach to outline manipulation (1994) 0.00 
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    Abstract
    Outlines (Tables of contents) reflect a conceptual model and can serve as a cognitive aid in reading and writing hypertext
    Type
    a
  3. Rada, R.; Wang, W.; Birchall, A.: Retrieval hierarchies in hypertext (1993) 0.00 
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  4. Rada, R.: Converting a textbook to hypertext (1992) 0.00 
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  5. Rada, R.: Hypertext writing and document reuse : the role of a semantic net (1990.) 0.00 
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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
    Type
    a
  6. Rada, R.: Writing and reading hypertext : an overview (1989) 0.00 
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  7. Chen, C.; Rada, R.: Interacting with hypertext : a meta-analysis of experimental studies (1996) 0.00 
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    Abstract
    Presents a study on hypertext examining the cognitive styles and spatial ability of users; the complexity of tasks; and the strucutre of information organization and the visualization of the structure. Future work on hypertext usability should emphasize task taxonomies along with longitudinal and ethnographic studies for a deep understanding of the interactions between users and hypertext
    Type
    a
  8. Rada, R.; Bird, G.; Zheng, M.: Hypertext interchange using ICA (1995) 0.00 
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    Type
    a
  9. Chen, C.; Rada, R.; Zeb, A.: ¬An extended fisheye view browser for collaborative writing (1994) 0.00 
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    Abstract
    Investigates information-seeking tasks and associated cognitve issues in the context of interacting with an evolving collaborative hypertext. Fishexe view browsers were used to facilitate exploring in a large information space. The fishexe view browser was extended to incorporate word frequencies. The effects of the fisheye view browser and the changing document were tested with 2x2 factorial experiment. Multivariate tests founs a significant interaction between the 2 factors and a significant main effect of the fisheye view browser. The users who had access to the word frequency information performed their tasks more effectively than the users without access to word frequencies. This work implies that several aspects of an evolving hypertext might als be useful incorporated in an associated fishexe view browser
    Type
    a
  10. Wang, W.; Rada, R.: Experiences with semantic net based hypermedia (1995) 0.00 
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    Abstract
    The Many Using and Creating Hypermedia (MUCH) systems is based on the Dexter model and treats the storage layer as a semantic net. The MUCH system provides a numer of recommended link types for representing application domain concepts, such as thesauri, documents and annotations. users of the system are expected to use those link types in the course of authoring meaningful hypermedia. based on the logs of usage of the MUCH system over 2 years by over 200 people, contrary to the designers' expectations, users did not exploit the ability to type semantic links. Typically authors used the default link type regardless of their semantic intentions. When a link type other than the default type was chosen, that choice was often inconsistent with the way another user would able a similar link. The system has proven to be useful for authoring conventional documents. Authors, however, were not practically able to produce hypertext documents. Based on these experiences a new system, RICH (Reusable Intelligent Collaborative Hypermedia), has been designed and built which emphasizes rules for typing links and maintaining the integrity of the semantic net
    Type
    a
  11. Rada, R.; You, G.-N.: Balanced outlines and hypertext (1992) 0.00 
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    Abstract
    Navigation problems in a hypertext migth be reduced, if mutiple, coherent views of the hypertext were available. Document outlines help readers appreciate the structure and meaning of the document. Proposes measures of syntactic and lexical balance in an outline and show in a sample of documents the degree to which these balances occur. Based on balance in an outline, a method for semi-automatically generating an alternative outline is applied to one textbook. The textbook with both its original and its alternative outline is availbale in hypertext, and subjects who were asked to evaluate this hypertext noted that the alternative outline would help readers compare concepts in the textbook
    Type
    a
  12. Chen, C.; Rada, R.: ¬A conceptual model for supporting collaborative authoring and use (1994) 0.00 
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    Abstract
    This paper discusses some problems encountered in hypermedia-based collaboration and reuse, and presents a conceptual framework to resolve these problems. Three suggestions are made based on the discussion: (1) extra organizational structures are necessary in shared hypermedia to support collaborative interactions; (2) an abstract schema is a key to capture the dynamic nature of the shared hypermedia; (3) an integration of the schema evolution approach and the workflow approach is recommended for an open system hypermedia teamwork support. The whole authoring environment is divided into several component spaces with particular respect to the Dexter Hypertext Reference Model. Not only can this separation reduce the overall complexitiy of working within such an environment, but it also conforms more closely with human cognitive needs in collaborative authoring and reuse activities
    Type
    a
  13. Rada, R.; Murphy, C.: Searching verses browsing in hypertext (1992) 0.00 
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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
    Type
    a
  14. Rada, R.: Focus on links : a holistic view of hypertext (1991) 0.00 
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    Abstract
    The disciplines of human-computer interaction, computer-supported collaborative work, information storage and retrieval, and artificial intelligence should complement one another in the new discipline of hypertext. This holistic view of hypertext focuses on links: links within a document (microtext), links among documents (macrotext), links among people (grouptext), and dynamic links (expertext). The principles and systems which are relevant to creating and accessing hypertext can be usefully presented under the heading of text, microtext, macrotext, grouptext and expertext. From text to expertext, people consistently use hierarchical structures, particularly hierarchical semantic nets, to organize information
    Type
    a
  15. Rada, R.: Small, medium, and large hypertext (1991) 0.00 
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  16. Rada, R.: Medical knowledge and hypermedia (1992) 0.00 
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  17. Rada, R.: Hypertext, multimedia and hypermedia (1995) 0.00 
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  18. Rada, R.: Interactive media (1995) 0.00 
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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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  • a 17
  • m 1

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