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Rada, R.: Hypertext and paper : a special synergy (1991) 0.05

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Source: International journal of information management. 11(1991) no.1, S.14-22

Rada, R.; Wang, W.; Birchall, A.: Retrieval hierarchies in hypertext (1993) 0.03

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Source: Information processing and management. 29(1993) no.3, S.359-372

Rada, R.: Knowledge-sparse and knowledge-rich learning in information retrieval (1987) 0.03

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Source: Information processing and management. 23(1987) no.3, S.195-210

Rada, R.: Small, medium, and large hypertext (1991) 0.03

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Source: Information processing and management. 27(1991) no.6, S.659-677

Rada, R.; Mili, H.: Document reuse : organizing, finding, and reorganizing content (1992) 0.02

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Source: International journal of information management. 12(1992) no.4, S.310-319

McMath, C.; Tamararu, B.; Rada, R.: Graphical interface to thesaurus-based information retrieval system (1988) 0.02

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McMath, C.F.; Tamaru, R.S.; Rada, R.: ¬A graphical thesaurus-based information retrieval system (1989) 0.01

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Wang, W.; Rada, R.: Experiences with semantic net based hypermedia (1995) 0.01
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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

Rada, R.; Murphy, C.: Searching verses browsing in hypertext (1992) 0.01

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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

Rada, R.: Maintaining thesauri and metathesauri (1990) 0.01
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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
Chen, C.; Rada, R.: ¬A conceptual model for supporting collaborative authoring and use (1994) 0.01
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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

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