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  • × author_ss:"Rada, R."
  1. Rada, R.; Bird, G.; Zheng, M.: Hypertext interchange using ICA (1995) 0.03 
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  2. You, G.-N:; Rada, R.: ¬A systematic approach to outline manipulation (1994) 0.02 
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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.; Mili, H.; Letourneau, G.; Johnston, D.: Creating and evaluating entry terms (1988) 0.01 
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    Abstract
    An indexing language is made more accessible to searchers and indexers by the presence of entry terms or near-synonyms. This paper first presents an evaluation of existing entry terms and then presents and tests a strategy for creating entry terms. The key tools in the evaluation of the entry terms are documents already indexed into the Medical Subject Headings (MeSH) and an automatic indexer ...
    Type
    a
  4. Rada, R.; You, G.-N.: Balanced outlines and hypertext (1992) 0.01 
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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
  5. Rada, R.: Hypertext and paper : a special synergy (1991) 0.01 
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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
  6. Rada, R.; Barlow, J.; Potharst, J.; Zanstra, P.; Bijstra, D.: Document ranking using an enriched thesaurus (1991) 0.01 
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    Abstract
    A thesaurus may be viewed as a graph, and document retrieval algorithms can exploit this graph when both the documents and the query are represented by thesaurus terms. These retrieval algorithms measure the distance between the query and documents by using the path lengths in the graph. Previous work witj such strategies has shown that the hierarchical relations in the thesaurus are useful but the non-hierarchical are not. This paper shows that when the query explicitly mentions a particular non-hierarchical relation, the retrieval algorithm benefits from the presence of such relations in the thesaurus. Our algorithms were applied to the Excerpta Medica bibliographic citation database whose citations are indexed with terms from the EMTREE thesaurus. We also created an enriched EMTREE by systematically adding non-hierarchical relations from a medical knowledge base. Our algorithms used at one time EMTREE and, at another time, the enriched EMTREE in the course of ranking documents from Excerpta Medica against queries. When, and only when, the query specifically mentioned a particular non-hierarchical relation type, did EMTREE enriched with that relation type lead to a ranking that better corresponded to an expert's ranking
    Type
    a
  7. Rada, R.: Hypertext: from text to expertext (1991) 0.00 
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    Footnote
    Rez. in: Journal of documentation 48(1992) S.98-99 (P. Brown); Knowledge organization 20(1993) no.2, S.106-107 (dt.), no.3, S.172-173 (engl.) (R. Kuhlen)
  8. Rada, R.; Wang, W.; Birchall, A.: Retrieval hierarchies in hypertext (1993) 0.00 
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  9. Rada, R.: Converting a textbook to hypertext (1992) 0.00 
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  10. Rada, R.; Bicknell, E.: Ranking documents with a thesaurus (1989) 0.00 
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  11. Rada, R.; Mili, H.: Document reuse : organizing, finding, and reorganizing content (1992) 0.00 
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    Abstract
    Existing structures should be exploited as best as possible in the course of document reuse. Reuse may take multiple forms: rearranging a single document so as to provide different views of the same information, copying a portion of a single document to as to provide a portion of a new document, and combining portions of existing documents to constitute a new document. Algortihms are presented to do such reuse, examples are provided. For significant reuse the information in existing documents need to be abstracted so as to highlight the conceptual pattern
    Type
    a
  12. Rada, R.; Mili, H.; Bicknell, E.: Development and application of a metric on semantic nets (1989) 0.00 
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  13. McMath, C.F.; Tamaru, R.S.; Rada, R.: ¬A graphical thesaurus-based information retrieval system (1989) 0.00 
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  14. 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
  15. Rada, R.: Writing and reading hypertext : an overview (1989) 0.00 
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  16. Mili, H.; Rada, R.: Merging thesauri : principles and evaluation (1988) 0.00 
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  17. McMath, C.; Tamararu, B.; Rada, R.: Graphical interface to thesaurus-based information retrieval system (1988) 0.00 
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  18. Rada, R.: Knowledge-sparse and knowledge-rich learning in information retrieval (1987) 0.00 
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  19. 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
  20. Rada, R.: Maintaining thesauri and metathesauri (1990) 0.00 
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    Abstract
    Maintaining a thesaurus is a time-consuming task which should go hand-in-hand with the indexing of information and should be supported by software. To connect different document databases their respective thesauri should be related. The most straightforward way to support to support this by computer is to map the terms of one thesaurus to those of another. Such a mapping creates one kind of metathesaurus. As citation systems are extended to include full-text online, a new thesaurus may be used to index individual paragraphs. To illustrate these principles several computer systems are described which help people maintain thesauri and metathesauri. Particular success has been had by the National Library of Medicine with its Medical Subject Headings and its Unified Medical Language System
    Type
    a

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Themes

Subjects

Classifications