-
Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988)
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- Abstract
- The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
- Source
- Information technology and libraries. 7(1988), S.359-372
-
Peters, B.F.: Online searching using speech as a man / machine interface (1989)
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- Source
- Information processing and management. 25(1989), S.391-406
-
Hancock-Beaulieu, M.; Mitev, N.N.: Online library catalogues : the interactive dimension (1989)
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- Source
- Perspectives in information management 1. Ed.: C. Oppenheim
-
Cove, J.F.; Walsh, B.C.: Online text retrieval via browsing (1988)
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- Abstract
- Browsing refers to information retrieval where the initial search criteris are generally quite vague. The fundamentals of browsing are explored as a basis for the creation of an intelligent computer system to assist with the retrieval of online information. Browsing actions via a computer terminal are examined, together with new methods of accessing text and satisfying user queries. Initial tests with a prototype system illustrated the use of different retrieval strategies when accessing online information of varying structure. The results suggest the construction of a more intelligent processing component to provide expanded capabiblities for content extrction and navigation within text documents
- Source
- Information processing and management. 24(1988), S.31-37
-
Walker, S.: ¬The Okapi online catalogue research projects (1989)
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- Date
- 16. 8.1998 11:22:08
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.424-435.
-
Trenner, L.: ¬A comparative survey of the friendliness of online "help" in interactive information retrieval systems (1989)
0.03
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- Abstract
- This article discusses the provision of "help" in interactive information retrieval system (IIRS) and describes a comparative survey of the "help" facilities of 16 such systems. Six guidelines for the design of a "help" facility are drawn up and these are used to evaluate the quality and friendliness of the "help" provided by each system. The scores indicate that "help" on IIRS is often inadequate, especially on the commercial online systems. This article concludes by discussing why "help" is so unfriendly and by suggesting some ways in which online "help" could be improved
- Source
- Information processing and management. 25(1989), S.119-136
-
Mischo, W.H.; Lee, J.: End-user searching in bibliographic databases (1987)
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- Source
- Annual review of information science and technology. 22(1987), S.227-263
-
Ostroff, D.; Shneiderman, B.: Selection devices for user of an electronic encyclopedia : an empirical comparison of four possibilities (1988)
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- Source
- Information processing and management. 24(1988), S.665-680
-
Nelson, M.J.: Correlation of term usage and term indexing frequencies (1988)
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- Abstract
- There have been several studies on the distribution of index terms, title terms, authors, and other elements employed in searching bibliographic databases. What is needed is to relate this information to the actual selection of terms for searching. This study analyzes data taken from monitoring the actual selection of terms for searching an online catalog at the School of Library and Information Science at the University of Western Ontario. Every time a term was employed in a search expression, a count in the dictionary file was updated. If the word was not in the dictionary, it was added. As a check on other studies, the rank distribution of terms chosen for searching was fit and found to be of a general Bradford-Zipf type. The main hypothesis was that high frequency terms in the catalog are the ones most frequently chosen in searches. The regular scatterplot of number of postings in the catalog versus the frequency in searching was checked and Pearson's correlation and Spearman's rank correlation coefficients were calculated. These data show that in general searchers actually tend to select the terms with a high number of postings for searching the catalog
- Source
- Information processing and management. 24(1988), S.541-547
-
Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988)
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- Source
- Program. 22(1988), S.21-31
-
Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988)
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- Source
- Program. 22(1988), S.133-142
-
Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989)
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- Source
- Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47
-
Bates, M.J.: ¬An explanatory paradigm for online information retrieval (1986)
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- Source
- Intelligent information systems for the information society. Proc. of the 6th Int, Research Forum in Information Science, Frascati, 16.-18.9.1985. Ed.: B.C. Brooks
-
Evans, N.: Development of the Carnegie Mellon Library Information System (1989)
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- Source
- Information technology and libraries. 8(1989) no.2, S.110-120
-
Culkin, P.B.: Rethinking OPACs : the design of assertive information systems (1989)
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- Information technology and libraries. 8(1989) no.2, S.172-177
-
Lynch, C.A.: Response time measurement and performance analysis in public access information retrieval systems (1988)
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- Information technology and libraries. 7(1988), S.177-183
-
Hickey, T.B.: ¬The Experimental Library System (XLS) (1989)
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- Abstract
- The Experimental Library System project investigated methods of integrating a bibliographic/full text retrieval system with a relational data base management system for use with OPACs (on-line public access catalogues).
-
Buxton, A.; Trenner, L.: ¬An experiment to assess the friendliness of error messages from interactive information retrieval systems (1987)
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- Journal of information science. 13(1987), S.197-209
-
Drake, M.A.: ¬The online information system at Georgia Institute of Technology (1989)
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- Source
- Information technology and libraries. 8(1989) no.2, S.105-109
-
Björklund, L.; Olander, B.; Smith, L.C.: ¬The personal hypercatalog (1989)
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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.
- Imprint
- Medford, New Jersey : Learned Information Inc.
- Source
- ASIS'89. Managing information and technology. Proceedings of the 52nd Annual Meeting of the American Society for Information Science, Washington, D.C., 30.10.-2.11.1989. Vol.26. Ed. by J. Katzer and G.B. Newby
