Search (8 results, page 1 of 1)

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Footnote

Rez. in: Information processing and management. 32(1996) no.3, S.389-391 (P.B. Kantor); Journal of academic librarianship 22(1996) no.2, S.147 (T.A. Brooks); Medical reference services quarterly 15(1996) no.2, S.109-110 (C. Gluck); JASIS 47(1996) no.10, S.794-795 (R. Losee)

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Abstract

Presents a model for converting a collection of documents to hypertext by means of indexing, where the documents are assumed to be semistructured and where the text consists of a hierarchy of parts; some parts consisting of natural language, and combining formal grammars and document indexing

Type

a

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Type

a

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Abstract

Presents 2 methods for evaluating automatically generated hypertext links. The 1st method is based on correlations between shortest paths in the hypertext structure and a semantic similarity measure. Experimental results with the 1st methods show the degree to which the hypertext conversion process approximates semantic similarity. The semantic measure is in turn only an approximation of a user's internal model of the corpus. Proposes a 2nd evaluation method based on measuring user's performance using hypertext. Discusses the advantages and disadvantages of computer versus human evaluation

Footnote

Contribution to a special issue on methods and tools for the automatic construction of hypertext

Type

a

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Abstract

Describes the decisions that must be made by an investigator in carrying out an information retrieval experiment. Guidance is provided on a number of issues, specially determining the need for testing, choosing the type of test (laboratory or operational), defining the variables, developing or using data bases, finding queries, processing queries, assigning treatments to experimental units, collecting and analysing the data, and presenting the results

Type

a

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Abstract

Jean Tague-Sutcliffe was an important figure in information retrieval experimentation. Here, she reviews the history of IR research, and provides a description of the fundamental paradigm of information retrieval experimentation that continues to dominate the field.

Type

a

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Abstract

Examines the role of public libraries in providing different kinds of information to small businesses in light of results of a questionnaire survey of small businesses in the London, Ontario, area. Data was analyzed according to: how small businesses get information; what kind of information they need; and the importance of library resources and services. Results confirm the long held suspicion of business librarians in public libraries that their largest user group is the small business owners in the initial phase of business formation. The findings are expected to add ammunition to public libraries in their efforts to market services both to local funding bodies and small business communities

Type

a

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Abstract

This article examines the classification of link types within hypertext databases. Do labeled links act as cues, enabling understanding of the structure and leading to more informed navigational choices? Although there is anecdotal evidence that indicating link types to readers is useful in hypertext systems, there is little experimental data to support this position. This study tries to provide an experimental basis for the development of lables identifying link types. It addresses whether labeling the different types of links affects hypertext searching by providing or enhancing a structure for readers of nonlinear texts. An experiment was run to determine which of the following 3 conditions serve users with better cues and lead to increased performance in both browsing and querying scenarios: 1) providing only organizational links; 2) adding unlabeled semantic, rhetorical, and pragmatic links in addition to the organizational links; and 3) adding labeled semantic, rhetorical, and pragmatic links to the organizational links. The experiment used a between subjects design where subjects were library science students. SuperBook was used as the hypertext platform and the OCLC Cataloguing Users' Guide was used as the hypertext document. The statistical results indicate that there was no significant difference between the three conditions in the browsing task. However, subjects who had labeled content-based links performed significantly better on the querying task

Type

a