Literatur zur Informationserschließung

Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.

© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 28. April 2022)

Suchergebnisse

• 41
  Wood, F. ; Ford, N. ; Miller, D. ; Sobczyk, G. ; Duffin, R.: Information skills, searching behaviour and cognitive styles for student-centred learning : a computer-assisted learning approach.
  In: Journal of information science. 22(1996) no.2, S.79-92.
  
  Abstract: Undergraduates were tested to establish how they searched databases, the effectiveness of their searches and their satisfaction with them. The students' cognitive and learning styles were determined by the Lancaster Approaches to Studying Inventory and Riding's Cognitive Styles Analysis tests. There were significant differences in the searching behaviour and the effectiveness of the searches carried out by students with different learning and cognitive styles. Computer-assisted learning (CAL) packages were developed for three departments. The effectiveness of the packages were evaluated. Significant differences were found in the ways students with different learning styles used the packages. Based on the experience gained, guidelines for the teaching of information skills and the production and use of packages were prepared. About 2/3 of the searches had serious weaknesses, indicating a need for effective training. It appears that choice of searching strategies, search effectiveness and use of CAL packages are all affected by the cognitive and learning styles of the searcher. Therefore, students should be made aware of their own styles and, if appropriate, how to adopt more effective strategies
  
  Themenfeld: Retrievalstudien ; Computer Based Training
  
  
• 42
  Ford, N. ; Wood, F.: User modelling for the electronic library : a cognitive approach.
  In: Electronic library and visual information research: Proceedings of the First ELVIRA Conference (ELVIRA 1), Electronic Library and Visual Information Research, De Montfort University, Milton Keynes, May 1994. Ed. by M. Collier u, K. Arnold. London : Aslib, 1995. S.149-159.
  
  Abstract: Reports on 4 experiments conducted at Sheffield University, Department of Information Studies, UK, into cognitive models which illuminate how people learn using electronic media. The experiments dealt with: learning strategies in an unconstrained electronic environment, in a hypertext environment, and in database searching, and matching and mismatching learning styles. Discusses the positive or negative implications for the design of electronic learning materials suggested by these experiments
  
  Themenfeld: Benutzerstudien ; OPAC
  
  
• 43
  Ford, N. ; Lloyd-Williams, M. ; Morris, C.: Intelligent adaptive systems for information delivery in the electronic library.
  In: Electronic library and visual information research: Proceedings of the Second ELVIRA Conference (ELVIRA 2), Electronic Library and Visual Information Research, De Montfort University, Milton Keynes, May 1995. Ed. by M. Collier u, K. Arnold. London : Aslib, 1995. S.137-143.
  
  Abstract: Proposes the development of an 'intelligent document' as a key component of the future electronic library; in which the intelligent documents in a library collection may be thought of as the ability of documents or a collection of documents to adapt to differing characteristics of individual information seekers and users. Proposes the sort of intelligent document that could: identify particular learning strategies being used by individual users; classify them in terms of a model of learning capable of making explicit relationships between strategies, individual differences, learning tasks, and learning outcomes; and offer, on the basis of this model, individualized strategic advice (or take individualized strategic action) relating to how the user might most productively go forward. Describes results obtained during the study, conducted at the Department of Information Studies, Sheffield University, UK, involving PRECIS documents, fuzzy data analysis and artificial neural networks
  
  
  
• 44
  Wood, F. ; Ford, N. ; Walsh, C.: ¬The effect of postings information on search behaviour.
  In: Journal of information science. 20(1994) no.1, S.29-40.
  
  Abstract: How postings information is used for inverted file searching was investigated by comparing searches, made by postgraduate students at the Dept. of Information Studies, of the LISA database on CD-ROM with and without postings information. Performance (the number of relevant references, precision and recall) was not significantly different but searches with postings information took more time, and more sets were viewed, than in searches without postings. Postings information was used to make decisions to narrow or broaden the search; to view or print the references. The same techniques were used to amend searches whether or not postings information was available. Users decided that a search was satisfactory on the basis of the search results, and consequently many searches done without postings were still considered satisfactory. However, searchers thought that the lack of postings information had affected 90% of their searches. Differences in search performance and searching behaviour were found in participants who were shown to have different learning styles using the Witkin's Embedded Figures test and the Lancaster Short Inventory of Approaches to Learning Test. These differences were, in part, explained by the differences in behaviour indicated by their learning styles
  
  Themenfeld: Retrievalstudien ; Benutzerstudien
  
  
• 45
  Caregnato, S. ; Ford, N. ; Loughridge, B.: Expert systems support for subject librarians or subject specialists in academic libraries.
  In: Information research news. 4(1994) no.3, S.2-6.
  
  
  
• 46
  Woods, F. ; Walsh, C. ; Ford, N.: Effects of postings information on user searching behaviour.
  London : British Library, 1994. 57 S.
  (BLRD report; 6164)
  
  Abstract: Reports results of an investigation, undertaken at Sheffield University, Departmant of Information Studies, UK into the effects of postings information (the display on the screen of the number of references in the retrieved sets) on searching behaviour. Linked online searches were conducted, on the LISA database on CD-ROM, with and without postings information. Performance in terms of the number of relevant references, precision and recall was not significantly different whether postings information was available or not; but searches with postings information took more time and more sets were viewed than in searches without postings. Searchers thought that the lack of postings information had affected 90% of their searches. Proposes that training should place greater emphasis on the value of postings information at different stages of the search and should optimize the searching behaviour of those with different searching styles
  
  Themenfeld: Benutzerstudien
  
  
• 47
  Ford, N. ; Wood, F. ; Walsh, C.: Cognitive styles and searching.
  In: Online and CD-ROM review. 18(1994) no.2, S.79-86.
  
  Abstract: The primary aim of the study was to investigate the effect of the absence of postings information on online searches and searching behaviour and these results were reported in Journal of information science 20(1994) no.1. The secondary aim, reported here, was to assess the cognitive styles of the participants to ensure that the population was sufficiently vareid in this respect and to investigate possible correlations between cognitive ability and searching behaviour. Throughout the project, searches were made by postgraduates at the department of information studies, University of Sheffield using the LISA database on CD-ROM. A total of 67 searchers carried out 275 searches, both with and without postings information. Reports significant differences in both searching behaviour and search outcomes obtained by those with different learning styles, with and without postings information. Significant correlations were found between cognitice styles and online searching. Searchers characterized by different learning styles tend to adopt different search strategies and strategies associated with comprehension and operation learning styles result in qualitatively different searching performance. Searching approaches associated with a versatile style are the most effective. Making feedback in the form of postings available enables comprehension and operation learners, and field independent searchers, to change their apporach in qualitatively different ways. Other findings are reported and discussed
  
  Themenfeld: Suchtaktik
  
  
• 48
  Ford, N. ; Ford, R.: Towards a cognitive theory of information accessing : an empirical study.
  In: Information processing and management. 29(1993) no.5, S.569-585.
  
  Abstract: Reports on a project which aimed to simulate querying of an ideal system which could respond to any kind of questioning phrased in any way. 30 users accessed a system the knowledge base of which (unknown to them) included 2 human experts. The interactions between users and the system were logged and analyzed. The results reveal different information accessing strategies linked to individual user characteristics and retrieval effectiveness. Discusses implication for the design of improved information retrieval systems
  
  
  
• 49
  Ford, N. ; Ford, R.: Cognitive styles and database access.
  In: Online information 92. Proc. of the 16th Int. Online Information Meeting, London, 8-10.12.1992. Ed. by David I. Raitt. Oxford : Learned Information Ltd., 1992. S.399-413.
  
  Abstract: Describes an experiment conducted with 30 post graduate information science and librarianship students to discover how they might go about learning from an ideal database. A system was created which preserved the characteristics of a computer based environment, yet which freed itself from the constraints of current technology. The students were, in fact, interacting via computer screen with 2 human expert backed up with appropriate computer files and documentation. Results suggest a number of different information accessing strategies linked to relatively successful and less successful retrieval. Discusses the implications of the results for the design of computerized information retrieval systems
  
  
  
• 50
  Ford, N.: Expert systems and artificial intelligence : an information manager's guide.
  London : Library Association, 1991. 304 S.
  ISBN 0-85365-909-5
  
  Abstract: A guide to database management, online searching, text retrieval, data analysis, intelligent documents and more ...
  
  Anmerkung: Rez. in: Program 28(1994) no.2, S.211-212 (M. Malinconicao)
  
  Wissenschaftsfach: Informatik
  
  Compass: Artificial intelligence
  DDC: 006.3