Search (66 results, page 1 of 4)

  • × theme_ss:"Hypertext"
  1. Wolfram, D.; Dimitroff, A.: Hypertext vs. Boolean-based searching in a bibliographic database environment : a direct comparison of searcher performance (1998) 0.10
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  2. Dimitroff, A.; Wolfram, D.: Searcher response in a hypertext-based bibliographic information retrieval system (1995) 0.10
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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
  3. Pollard, R.: ¬A hypertext-based thesaurus as a subject browsing aid for bibliographic databases (1993) 0.09
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    Abstract
    Part of a special issue on hypertext and information retrieval. Conventional information retrieval systems provide little support for browsing. Browsing is the major method of searching in hypertext system but users can become disoriented even when browsing small information space. If hypertext is to be used to support browsing in bibliographic databases navigational assistance will be required. Examines the role of thesauri as navigational aids for subject domains of Bibliographic databases. Presents the design of an experimental hypertext-based browsing inference for a thesaurus and its implementation using a commercially available hypertext program. Examines strategies for linking the thesaurus to a database
  4. Sinno-Rony, S.: ¬Les hypercatalogues : nouvelles perspectives pour le OPAC (1991) 0.09
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    Abstract
    Presents a state of the art review of the application oh hypertext searching techniques to online catalogues. The technique improves traditional online catalogues: when consulting the catalogue in a non linear way; and when browsing bibliographic information. New research could improve access to larger databases including thesauri and classification schemes
  5. Dimitroff, A.; Wolfram, D.; Volz, A.: Affective response and retrieval performance : analysis of contributing factors (1996) 0.08
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    Abstract
    Describes a study which investigated the affective response of 83 subjects to 2 versions of a hypertext-based bibliographic retrieval system. The objective of the study was to determine if subjects preferred searching a hypertext information retrieval (IR) system via traditional bibliographic links or via an enhanced set of linkages between structured records. The study also examined the utility of using factor analysis to explore subjects' affective responses to searching the 2 hypertext-based IR systems; explored the effect of experience on search outcome; and compared the effect of different types of linkages within the hypertext system. Findings reveal a complex relationship between system and user that is sometimes contradictory. Searchers found the systems to be usable or unusable in different ways indicating that further researchg is needed to isolate to specific features that searchers find frustrating or not in searching structured records via a hypertext-based IR system
  6. Savoy, J.: ¬An extended vector-processing scheme for searching information in hypertext systems (1996) 0.06
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    Abstract
    When searching information in a hypertext is limited to navigation, it is not an easy task, especially when the number of nodes and/or links becomes very large. A query based access mechanism must therefore be provided to complement the navigational tools inherent in hypertext systems. Most mechanisms currently proposed are based on conventional information retrieval models which consider documents as indepent entities, and ignore hypertext links. To promote the use of other information retrieval mechnaisms adapted to hypertext systems, responds to the following questions; how can we integrate information given by hypertext links into an information retrieval scheme; are these hypertext links (and link semantics) clues to the enhancement of retrieval effectiveness; if so, how can we use them. 2 solutions are: using a default weight function based on link tape or assigning the same strength to all link types; or using a specific weight for each particular link, i.e. the level of association or a similarity measure. Proposes an extended vector processing scheme which extracts additional information from hypertext links to enhance retrieval effectiveness. A hypertext based on 2 medium size collections, the CACM and the CISI collection has been built. The hypergraph is composed of explicit links (bibliographic references), computed links based on bibliographic information, or on hypertext links established according to document representatives (nearest neighbour)
  7. Pollard, A.: ¬A hypertext-based thesaurus as subject browsing aid for bibliographic databases (1993) 0.04
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  8. Wolfram, D.; Dimitroff, A.: Preliminary findings on searcher performance and perceptions of performance in a hypertext bibliographic retrieval system (1997) 0.03
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    Abstract
    Reports on research examining the relationship of searcher performance and perception of performance, particulary for hypertext-based onformation retrieval systems for bibliographic data. Employs a prototype hypertext bibliographic retrieval system called HyperLynx. Evaluates its use by 83 subjects at the School of Library and Information Science and the Golda Meir Library at the University of Wisconsin-Milwaukee, USA. Measures of system usgae indicate that there is no significant relationship between confidence and the number of record pages visited, although confident searchers searched for shorter time periods. The reality check measures shows that both novice and experienced searchers were over confident in their performance
  9. Minitroff, A.; Wolfram, D.: Design issues in a hypertext-based information system for bibliographic retrieval (1993) 0.03
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    Abstract
    Examnies several feasibility issues and initial design considerations for a hypertext system for structured bibliographic retrieval. HyperLynx was developed using Asymmetric Toolbox. By combining searchable term indexes and inter-record linkages between common authors and descriptors, a flexible search environment is established conductive to browsing
  10. Stein, M.J.; Sheridan, C.R.: Hypertext and the identity link (1990) 0.03
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    Abstract
    Examines the problems encountered when setting up a hypertext link (termed the identity link) for moving between bibliographic and full text data bases, e.g. MEDLINE and CCAL. Argues that these problems are symptomatic of deeper concerns, involving criteria and classificatory fields.
  11. Wolfram, D.; Volz, A.; Dimitroff, A.: ¬The effect of linkage structure on retrieval performance in a hypertext-based bibliographic retrieval system (1996) 0.03
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    Abstract
    Investigates how linkage environments in a hypertext based bibliographic retrieval system affect retrieval performance for novice and experienced searchers, 2 systems, 1 with inter record linkages to authors and descriptors and 1 that also included title and abstract keywords, were tested. No significant differences in retrieval performance and system usage were found for most search tests. The enhanced system did provide better performance where title and abstract keywords provided the most direct access to relevant records. The findings have implications for the design of bilbiographic information retrieval systems using hypertext linkages
  12. Wolfram, D.: Inter-record linkage structure in a hypertext bibliographic retrieval system (1996) 0.03
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    Abstract
    Explores inter record linkage relationships of a bibliographic hypertext system through the use of descriptor term co-occurrences. Using term distribution and term exhaustivity data for an existing system, develops 3 models of term co-occurrence and tests against the observed data. The developed models do not adequately model the observed co-occurrence patterns for select parts of the distribution using chi-square values. With knowledge of the structure of such a hypertext system, an appropriate model may be constructed and used as the basis for studying systems design of inter-record linkages and system navigation by users in such a hypertext system
  13. Nelson, M.J.: ¬The design of a hypertext interface for information retrieval (1991) 0.02
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    Abstract
    Hypertext for multi-media and full-text documents is rapidly developed on all fronts. For bibliographic information retrieval the applications are promising but pose several difficulties. Describes work conducted at the School of Library and Information Science at Univ. of Western Ontario the objective of which is to add the capability of a browsing search to an existing OPAC through the use of Windowed Hypertext Interface for Zippy Retrieval and Display (WHIZRD) software. Discusses the underlying retrieval capabilities of the system. Examines design problems and solutions and outlines future enhancements
  14. Filho, L.V.: Hipertexto : visao geral de uma nova tecnologica de informacao (1995) 0.02
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    Abstract
    Provides an overview of hypermedia and hypertext systems including some historical background, a definiton of the technology, and a description of the basic concepts, navigation of a network, principal characteristics of the interface, and the provision of storage. Provides an example of a hypertext application in the information field: an experimental bibliographic hypercatalogue. Discusses the difficulties associated with hypertext systems, describes some experiments and applications, offers some predictions and some suggestions for further research
  15. Björklund, L.; Olander, B.; Smith, L.C.: ¬The personal hypercatalog (1989) 0.02
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    Abstract
    Describes a hypertext-based system that integrates the bibliographic information of the library catalogue with user-defined knowledge structures, imports information at the user's command, and offers a dynamic personal information tool for active users. Describes the structure and the content of the data base, and shows how the system can be accommodated to different user groups or individual users.
  16. Jörgensen, C.; Jörgensen, P.: Citations in hypermedia : maintaining critical links (1991) 0.02
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    Abstract
    The lack of complete and accurate citations for referenced works is a persistent and significant problem in scholarly writing. The advent of new froms of electronic publishing, especially hypermedia, has the potential for either aggravating or alleviating this problem. Incorrect and missing citations will become more prevalent (and, indeed, have become so within large bibliographic databases) without a concerted and ccoperative effort on the part of systems developers to provide adequate references and the means for easily accessing and downloading them. Examines some of the basic issues involved in the problem of maintaining the critical authorship links between source and expression in one specific form of electronic publishing - hypermedia - and proposes some solutions
  17. Kinnell, S.; Richards, T.: ¬An online interface within a hypertext system : Project Jefferson's electronic notebook (1989) 0.02
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    Abstract
    Project Jefferson was designed to help new students at the University of Southern California (USC) to acquire skills necessary for writing research papers through the example of research into ethical issues raised by the US Constitution. It runs on Macintosh Computers and is based on Apple Computer's HyperCard, a system wich allows users to browse different sources of information at their own pace and along their own routes while noting down useful discoveries in the notebook part of the system. Access to USC's locally mounted bibliographic data bases is also given without any tedious logging-on routines.
  18. Schreiweis, U.: Hypertextstrukturen als Grundlage für integrierte Wissensakquisitionssysteme (1993) 0.02
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    Date
    19.10.1995 10:22:53
  19. Aßfalg, R.: Integration eines offenen Hypertextsystems in den Internet-Mehrwertdienst World Wide Web : ein Ansatz unter Verwendung eines objektorientierten Datenbanksystems (1996) 0.02
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    Date
    22. 2.1997 19:40:31
  20. Menges, T.: Möglichkeiten und Grenzen der Übertragbarkeit eines Buches auf Hypertext am Beispiel einer französischen Grundgrammatik (Klein; Kleineidam) (1997) 0.02
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    Date
    22. 7.1998 18:23:25

Years

Languages

  • e 57
  • d 6
  • f 2
  • pt 1
  • More… Less…

Types

  • a 59
  • m 3
  • s 3
  • b 1
  • d 1
  • x 1
  • More… Less…