-
Machovec, G.S.; Brunning, D.R.: ¬The online catalog as a shared resource : the impact of local databases and networking (1991)
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- Abstract
- Discusses the expansion of the traditional role of on-line catalogues OPACs in academic libraries to include: local loading of bibliographic and non-bibliographic data bases from magnetic tapes; formation of gateways to on-line data base searching, and networking via data networks such as Internet
-
Opacs in the UK : JANET-OPACs (1991)
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- Editor
- University of Sussex Library
- Issue
- A list of interactive library catalogues on Janet ...3 April 1991.
- LCSH
- Catalogs, On / line
- Subject
- Catalogs, On / line
-
Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996)
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- Abstract
- Reports on the design of a GUI for the Okapi 'best match' retrieval system developed at the Centre for Interactive Systems Research, City University, UK, for online library catalogues. The X-Windows interface includes an interactive query expansion (IQE) facilty which involves the user in the selection of query terms to reformulate a search. Presents the design rationale, based on a game board metaphor, and describes the features of each of the stages of the search interaction. Reports on the early operational field trial and discusses relevant evaluation issues and objectives
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Beaulieu, M.: Experiments on interfaces to support query expansion (1997)
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- Abstract
- Focuses on the user and human-computer interaction (HCI) aspects of the research based on the Okapi text retrieval system. Describes 3 experiments using different approaches to query expansion, highlighting the relationship between the functionality of a system and different interface designs. These experiments involve both automatic and interactive query expansion, and both character based and GUI (graphical user interface) environments. The effectiveness of the search interaction for query expansion depends on resolving opposing interface and functional aspects, e.g. automatic vs. interactive query expansion, explicit vs. implicit use of a thesaurus, and document vs. query space
- Footnote
- Contribution to a thematic issue on Okapi and information retrieval research
- Source
- Journal of documentation. 53(1997) no.1, S.8-19
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Banks, B.: Oracle libraries : multimedia and Windows OPAC (1993)
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- Abstract
- Describes the features of a online system which features a Windows 3 graphical user interface and is based on Oracle relational database management system. Describes the user interface, intuitive querying facilities which make use of full text retrieval, post-Boolean searching, text normalisation, and thesaurus; hypertext browsing facilities, and its ability to support a variety of media types
-
Hancock-Beaulieu, M.: OPACs (1993)
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- Abstract
- Reports on the state-of-the art of online catalogues and considers propects for future developments. Describes the background and origins of OPACs. Considers the limitations of second generation systems which are failing to meet the needs of users. Examines new approaches to their design which include: user-centre design, interface design, use of advanced retrieval techniques, and their use in the network environment. Considers future developments of OPACs taking into account developments in other electronic information sources
-
Pasanen-Tuomainen, I.: Analysis of subject searching in the TENTTU books database (1992)
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- Abstract
- Presents a pilot study for an Internordic project to monitor the use of online catalogues in the Nordic technological university libraries. Focuses on the use of classification in subject searching, how the UDC is used and the extent of its use. Studies user interaction with the OPACs and improvements to information retrieval in the catalogues using the transaction log method to gather data. The pilot study examnines the TENTTU Books database which is the online union catalogue of the Helsinki Univ. of Technology Library, a multilingual database with true information retrieval. The Internordic study itself will make comparisons between the TENTTU system and the new Virginia Tech Library System. Discusses the users monitored, method of analysis, subject searching in the database, results and how the UDC codes were used. Compares this to other studies conducted in Finland and evaluates the project
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Pasanen-Tuomainen, I.: Evaluating the user education (1994)
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- Abstract
- Desicusses the user training programme of the Helsinki University of Technology Library in the light of an internordic monitoring project. In the project, the use of OPACs was evaluated by analyzing the transaction logs and it was concluded that end users do not exploit the various possibilities of OPACs. A large part of the material found in the collections in the library is not retrieved: misspellings, lack of truncation, inequate use of Boolean operators and wrong database choices lead to ineffective retrieval. Emphasis in the online catalogue training has been on the 'hands on' exercises and it appears that the training programme is not very effective in the area of subject searching. Presents reasons for this and discusses plans for the future development of the library user training programme
-
Larson, R.R.: Evaluation of advanced retrieval techniques in an experimental online catalog (1992)
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- Abstract
- Research on the use and users of online catalogs conducted in the early 1980s found that subject searches were the most common form of online catalog search. At the same time, many of the problems experienced by online catalog users have been traced to difficulties with the subject access mechanisms of the online catalog. Numerous proposals have been made for methods intended to improve subject access to online catalog records. These commonly involve enhancing the catalog's bibliographic records with additional terms, or incorporating subject authority files or additional thesauri in the database. Another stream of research has concentrated on applying retrieval techniques derived from information retrieval (IR) research to replace the Boolean search methods of conventional online catalog systems. This study describes the results of retrieval tests using a variety of these search methods in the CHESHIRE experimental online catalog system.
- Source
- Journal of the American Society for Information Science. 43(1992), S.34-53
-
Schweikl, G.: ¬Die Pilotierung des SISIS-OPAC-ONL V 1.0 an der Universitätsbibliothek Regensburg (1994)
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- Abstract
- Within the SOKRATES project Bavarian state, university and regional libraries are being equipped with locally automated systems. Regensburg university library has piloted the SISIS-OPAC-ONL version 1.0, adapted from the SINIX-based software SISIS-SE, with a machine readable stock of 1,66 million titles. OPAC-ONL offers 3 retrieval functions of different grades. Tests have been approved by Bavarian state libraries provided that certain faults are rectified statewide use of the OPAC should follow
- Source
- Bibliotheksforum Bayern. 22(1994) H.3, S.358-376
-
Valauskas, E.J.: Creating an online help system (1994)
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- Abstract
- Details how the ON-LINE Help Construction Kit (version 2.2) can be used to create a help system for searching online catalogues. Details the planning process when preparing such a system and how to use the kit to create help panels
-
Wrigth, C.; Friend, L.: Ergonomics for online searching (1992)
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- Abstract
- Summarises some of the recommendations, made by standards and other bodies, regarding the ergonomics of on-line searching and the planning and design of on-line terminals and workstations. Factors included in the planning process are: physical arrangement of equipment and seating; lighting; screen glare; individual vision factors (corrective lenses, viewing distance, placement of documentation, adjustable screens, blink rates); acoustic factors; radiation; screen flickers; screen image characteristics (colour, positive/negative images, screen size, scrolling); statue. Furniture and equipment configurations are discussed in considerable detail
-
Connell, T.H.: Subject searching in online catalogs : metaknowledge used by experienced searchers (1995)
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- Abstract
- Identifies and characterizes the knowledge used by experienced librarians while searching for subject information in online catalogues. 10 experienced librarians performed the same set of 6 subject searches in an online catalogue. Investigates the knowledge used to solve retrieval problems. This knowledge presents expertise in the use of the catalogue. Data were collected through the use of think aloud protocols, transaction logs and structured interviews. Knowledge was defined as knowledge objects (factual knowledge), knowledge of events (experimental knowlegde), knowledge of performance (process knowledge), and metaknowledge. Metaknowledge is the sense of whole derived from the integration of factual, process, and experimental knowledge about the search and the conditions under which it is performed. Focuses on metaknowledge. For evidence of metaknowledge the data were examined for explanations that participants gave for their actions and observations, and for ways that participants evaluated their own progress during the process of searching. Reasons and explanations given by searchers were related to all phases of the library information retrieval process from the user's receipt of material to policies for collection development, and not just events directly related to the performance of a particular search task
- Source
- Journal of the American Society for Information Science. 46(1995) no.7, S.507-518
-
Bowman, S.; Avey, F.D.; Turner, C.: ¬A comparative study of the impact of Online Public Access Catalogues on the information gathering and utilisation habits of different user groups (1991)
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- Abstract
- The OPAC has developed into an information providing tool capable of many varied tasks. Maps this development. Discusses the interface between the OPAC and the casual or inexperienced user and the expending use of networks. Surveays the growth of OPACs and shows that OPACs have developed a number of features from information retrieval. Assesses areas of further research
-
Engle, M.: LITA Online Catalog Interest Group, American Library Association Conference, New Orleans, June 1993 (1994)
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- Abstract
- Considers the current state of online catalogues and future directions in designing the next generation, addressing both the content and presentation of information in the catalogue. Reports on a user survey which identified the varieties of catalogue failure and users' recommendations for improvements. Suggests pragmatic solutions to problems posed by large retrieval sets and the tendencies of searchers of sophisticated systems to use only a few commands and to examine only the first few records in a large retrieval set. The chaotic and contradictory nature of the OPAC in a networked environment is characterized as 'a great disorder in an order'. Discusses paradoxes that confront both users and designers of future online catalogues
-
Larson, R.R.: Classification clustering, probabilistic information retrieval, and the online catalog (1991)
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- Abstract
- Research into online catalog use and users has found some pervasive problems with subject searching in these systems. Subject searches too often fail to retrieve anything, and those that do succeed often retrieve "too much" material. This article examnies these problems and how they might be remedied. The theoretical principles for the design of effective information retrieval systems are discussed, and an experimental online catalog system based on these principles is described. The system, CHESHIRE, uses a method called "classification clustering", combined with probabilistic retrieval techniques, to provide natural language searching (which helps to reduce search failure) and to provide effective control of "information overload" in subject searching
-
Pasanen-Tuomainen, I.: Does access meet availability at an OPAC? (1993)
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- Abstract
- Paper presented at the 1992 IATUL seminar in Tallinn, estonia: 'Universal Availability of Publications in Science and Technology including those on the history and philosophy of grey literature' on UAP policy and practice. Discusses surveys conducted at the Helsinki Univ. of Technology Library analysing the use of the online catalogue. Covers the Internordic Study 'Monitoring the Online Catalogues of the Nordic Technical University Libraries', whose aim was the promotion of end-user accessibility to information as part of a training program. Users' search behaviour was observed during the course on the library's TENTTU information retrieval system. Analyses the transaction log files of end users. Presents statistics on the distribution of search elements in free text and field codes and the use of Boolean operators. Comments on a software package enabling analysis of the interaction between the system and the end user. This may be useful to evaluate training programs
-
Hirawa, M.: Role of keywords in the network searching era (1998)
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- Abstract
- A survey of Japanese OPACs available on the Internet was conducted relating to use of keywords for subject access. The findings suggest that present OPACs are not capable of storing subject-oriented information. Currently available keyword access derives from a merely title-based retrieval system. Contents data should be added to bibliographic records as an efficient way of providing subject access, and costings for this process should be estimated. Word standardisation issues must also be addressed
- Source
- Igaku Toshokan (Journal of the Japan Medical Library Association). 45(1998) no.2, S.222-227
-
Engle, M.: LITA Online Catalog Interest Group meeting : American Library Association, Midwinter meeting, Los Angeles, February, 1994 (1995)
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- Abstract
- The meeting comprised a free-ranging discussion of topics relating to the development and use of OPACs. The following issues which challenge OPAC systems designers were identified: increasing precision in processing large retrieval sets, the addition of tables of contents data to enhance catalogue records for periodicals; privacy matters related to the needs for user identification or authentication; and the potential of the Z39.50 standard for networked computer to computer information retrieval. The future OPAC is likely to be one building block in a larger nexus of information structures, interacting with myriad other servers on the user's behalf and providing the needed intellectual filtering to deliver meaningful results
-
Twidale, M.; Nichols, D.: Collaborative browsing and visualization of the search process (1996)
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- Abstract
- Information retrieval systems such as library OPACs have been largely designed to give the impression of being single user systems, the existence and activity of other users being hidden from each other. However, informal observations indicate significant collaboration between users despite the fact that existing systems fail to support this. Describes the development of an interface, the Ariadne system, that supports collaboration through the storage and re-use of others' search processes promoting better visualization of the information data structures being browsed and more effective means of communicating the browsing process. Discusses issues relating to privacy and ownership resulting from the storage of users' searches. Argues that introducing support for collaboration into information retrieval systems would help users to learn and use the systems more effectively
- Footnote
- Paper presented at ELVIRA'96: 3rd International Conference on Electronic Library and Visual Information Research, Milton Keynes, UK, 30 April - 2 May 1996
