Search (4 results, page 1 of 1)

  • × author_ss:"Rowley, J."
  • × year_i:[1990 TO 2000}
  1. Rowley, J.: ¬The changing face of current awareness services (1998) 0.04 
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    Abstract
    Presents a state of the art review of current awareness services in 1997 noting: the components of typical current awareness services; the range and types of databases that may be scanned during searches; and the role of feedback and document delivery mechanisms. Includes a checklist of criteria which may be used to evaluate current awreness services, including: database coverage; timeliness and currency; cost; and mechansims for creating and maintaining user SDI profiles. Discusses the main types of current awareness services: contents page services; abstracting and indexing services; and integrated online products (such as Engineering Index's Engineering Village), including SDI. Considers the concept of currency and remarks on the tendency for current awareness services to be products of a producer led rather than a user led culture
    Date
    9. 2.1997 18:44:22
    22. 2.1999 17:48:45
  2. Rowley, J.: Current awareness in an electronic age (1998) 0.02 
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    Date
    22. 2.1999 17:50:37
    Source
    Online and CD-ROM review. 22(1998) no.4, S.277-279
  3. Rowley, J.: ¬The controlled versus natural indexing languages debate revisited : a perspective on information retrieval practice and research (1994) 0.01 
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    Abstract
    This article revisits the debate concerning controlled and natural indexing languages, as used in searching the databases of the online hosts, in-house information retrieval systems, online public access catalogues and databases stored on CD-ROM. The debate was first formulated in the early days of information retrieval more than a century ago but, despite significant advance in technology, remains unresolved. The article divides the history of the debate into four eras. Era one was characterised by the introduction of controlled vocabulary. Era two focused on comparisons between different indexing languages in order to assess which was best. Era three saw a number of case studies of limited generalisability and a general recognition that the best search performance can be achieved by the parallel use of the two types of indexing languages. The emphasis in Era four has been on the development of end-user-based systems, including online public access catalogues and databases on CD-ROM. Recent developments in the use of expert systems techniques to support the representation of meaning may lead to systems which offer significant support to the user in end-user searching. In the meantime, however, information retrieval in practice involves a mixture of natural and controlled indexing languages used to search a wide variety of different kinds of databases
  4. Rowley, J.; Butcher, D.: ¬A comparison of pricing strategies for bibliographic databases on CD-ROM and equivalent printed products (1994) 0.01 
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    Abstract
    Library managers are often concerned to assess the most cost effective means of access to bibliographic data. Considers comparative prices for bibliographic data on CD-ROM and in print form. In many instances, CD-ROM offers added value and easier access to data, but the relative cost is important. Library managers need not only to compare prices but to consider cost effectiveness. Differences between the nature of bibliographic data on CD-ROM and in a printed bibliography or in abstracting and indexing service, and the relative complexities of pricing structures for bibliographic data in both CD-ROM and printed form, where both hinder comparisons. Varying policies on network pricing are an added complication when assessing CD-ROM service. Concludes that some standardization of aspects of the licensing arrangements would be welcome

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