Search (61 results, page 1 of 4)

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Abstract

Hypertext systems provide an appealing mechanism for informally browsing databases by traversing selectable links. However, in many fact finding situations string searching is an effective complement to browsing. Describes the application of the signature file method to achieve rapid and convenient strung search in small personal computer hypertext environments. The method has been implemented to a prototype, as well as in a commercial product. Presents performance data for search times and storage space from a commercial hypertext database and discusses user interface issues. Experience with the string search interface indicates that it was used successfully by novice users

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Abstract

Analyses the features of the retrieval software for a sample of 8 CD-ROM tiltes which include encyclopaedias and specific works of reference, using specific criteria. These relate to: user interface; browsing; searching; and output. Describes and comments on the 8 titles of the sample

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Source

Medical reference services quarterly. 17(1998) no.4, S.1-15

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Date

22. 2.2003 17:25:39
22. 2.2003 18:16:22

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Abstract

This paper outlines strategies and methods for tackling the enormous challenges presented by an emerging Information Society in which the resources of libraries and museums are gradually being made available on-line in electronic form. It begins from two fundamental premises: first, that the experience of libraries, museums, archives and similar institutions in organising, ordering, classing and accessing knowledge is an obvious point of departure for serious strategies of search and access. A second premise is that the methods used for presentation of knowledge in libraries offer valuable clues for a coherent access, interface and strategy, offering a key to a common look and feel for all our activities, be it creating, classing, publishing or accessing. Following from these premises is a new approach to the traditions of knowledge collection, organisation and retrieval. At one end of the spectrum there has been a dream that everything could be collected in one centralized institution. This inspired the Library of Alexandria, the British Museum and a host of other efforts. At the other end of the spectrum there has been an assumption that everything could be decentralised in a completely distributed system. Our claim is that neither of these extremes can work, which means that a new model is called for: a centralised repository of meta-data, a digital reference room which is effectively a cumulative collection of all existing reference sections in libraries and museums

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Source

Reference services review. 20(1992) no.1, S.27-32

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Abstract

EBSCO Publishing have demonstrated a beta version of EBSCOhost, version 3.0, which includes several new features that enrich searching, enhance result lists and make general navigation into and out of the search interface easier. Features unclude: simultaneous multiple database searching; hierarchical authority files; and additional authority file searching options; including a relevancy ranked 'find more like' feature

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Date

22. 2.2003 17:25:39
22. 2.2003 18:13:11

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Date

22. 2.2003 17:25:39
22. 2.2003 18:15:14

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Date

22. 2.2003 17:25:39
22. 2.2003 18:20:07

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Date

22. 2.2003 17:25:39
22. 2.2003 18:19:01

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Abstract

Describes the development, by the Faculty of Computer Science and Information Technology, Malaya University, of ONLIS (Online Library Information System), a customized user interface for coputerized MARC cataloguing and information retrieval, targeted for use in small libraries and information centres. Micro CDS/ISIS ver. 3.07 software package and its built in PAscal language were used for the design process and development. Design philosophy centres on the development of a very user friendly and simple interface, capable of mimicking the salient features of a contemporary commercial library package, yet easy to implement and maintain in a small library environment requiring little or no technical expertise. The system incorporates many new features and comprises 2 main components: data entry and file maintenace; and information retrieval. A security system is incorporated into the former environment to ensure data integrity and regulate important file maintenance tasks. While the system is ready for immediate implementation in libraries, modifications and enhancements are currently being undertaken to make it a truly reliable product. Concludes that some degree of user training in MARC and cataloguing using AACR2 is necessary to get the maximum benefits from the systems

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Abstract

Describes the OKAPI projects and OKAPI's development as an experimental online catalogue system over 10 years, first at the University of Westminster (formerly the Polytechnique of Central London) and subsequently at City University, London. The 1st OKAPI project in 1984 introduced 'best match' retrieval and focused on the user interface design. The 2nd investigated word stemming, spelling correction and cross reference tables as retrieval aids. A comparative study of 2 library catalogues was undertaken in 1987, while in 1988 query expansion and relevance feedback were introduced and evaluated by laboratory tests. In 1990 live evaluation of automatic query expansion was carried out and in 1993 subject enhancement of bibliographic records was investigated. The latest project has examined the design of a graphical user interface to support interactive query expansion. Discusses the research and evaluation of each project

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Abstract

Suggests techniques and evaluation criteria for information sources and services available on the Internet. The need for qualitative judgements about library materials and information sources is upheld and accepted techniques and evaluation criteria for printed reference works are outlines. The emergence of non-book materials and electronic information formats has created the need for new techniques and criteria relating specifically to online services and CD-ROM products. Use of the Internet by library and information workers is examined, establishing that the majority of current traffic is communications-based. The authors suggest that networked information sources require the development of additional techniques and criteria for evaluation if they are to be used by information professionals. The potential issues in establishing such a list are discussed

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Abstract

Recent advances in technology assume a separation of content and presentation with respect to data structures. In terms of access, however, there are important reasons for relating content and presentation (differnt views, perspectives). The paper outlines some fundamental concepts underlying a prototype for a System for Universal Media Searching (SUMS), namely, learning filters, and knowledge contexts, levels of knowledge, questions as strategy: pupose as orientation; media choices, quality, quantity, questions, space using maps and projections; multi-temporal views and integrating tools. It foresees how such a system, linked with the equivalent of a digital reference room, will provide the basis for a System for Universal Multimedia Access (SUMMA). The latter part of the paper addresses recent developments in three-dimensional interfaces. It claims that these are particularly suited for certain tasks such as visualising conncetions in conceptual spaces; seeing invisible differences as well as comprehension and prediction by seeing absence. It suggests also some ways in which two- and three-dimensional interfaces can be used in complementary ways

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Abstract

The growth of medical, academic resources on the World Wide Web has led to much greater incentives and opportunities for nursing and medical students, researchers and practitioners to access Web resources. However, usersindividual differences and the variety of information-retrieval mechanisms provided by medical web resources may combine to reduce the benefits of this information resource. In a study designed to qualitatively analyse the interaction of such individual- and system-differences, a reliable method of representing WWW navigational data was found to be important in assisting traditional methodologies of representation and analysis. The methodology of graphically representing such navigational data, and the support such a technique may offer the qualitative analysis of user-system interactions, is thus described in detail and with reference to one specific example drawn from the data collected. Further, some preliminary findings deriving from the use of graphical and more traditional methodologies in this study are also represented

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Date

22. 2.2003 17:25:39
22. 2.2003 18:17:40

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Date

27.12.2014 18:54:22