A comparative evaluation of thesauri concerning "conceptual representability": Through an indexing experiment of the documents on library and information science

Noriko Kando-Matsuyama, Kazuaki Kishida, Sumiko Mushakoji, Kiyoe Inagaki, Keiko Higuchi, Shuichi Ueda

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Abstract

A comparative evaluation of four thesauri concerning "conceptual representability" was conducted. These thesuari were ERIC Thesaurus, JICST Thesaurus and two originally constructed thesauri of library and information science. For this purpose, the following issues come under review first: the evolution of thesauri, the history of international guidelines for thesaurus establishment, the functions of thesauri, the new trend for various thesauri as switching languages or integrated vocaburalies, and methods for evaluation of thesauri. These lead us to regard thesauri as what represent the knowledge structures of the fields. For evaluating. thesauri in this meaning, "conceptual representability", which indicates how appropriately the thesaurus can represent the concepts in documents or in queries, is one of the important propeties of thesauri. It has two aspects, "comprehensivity" and "specificity". We have conducted an experiment in this aspect as follows: The sample documents were extracted randomly from the fields of library and information science. The sample documents were indexed according to the four thesauri mentioned above. The list of indexing terms were compared and "conceptual representability", "comprehensivity" and "specificity" were computed. Through classifying the concepts appeared in the document we have got several subject categories. It was clarified that these three indeces, "conceptual representability", "comprehensivity" and "specificity", revealed the advantages and disadvantages of each thesauri, and that the number of terms involved in the thesauri is proportional to the "conceptual representability". This indicates that definite number of terms, discussing here, is necessary for vocaburalies in order to represent the concepts appeared in a field.

Original languageEnglish
Pages (from-to)103-114
Number of pages12
JournalLibrary and Information Science
Volume1988
Issue number26
Publication statusPublished - 1988

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thesaurus
indexing
information science
experiment
evaluation

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  • Library and Information Sciences

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A comparative evaluation of thesauri concerning "conceptual representability" : Through an indexing experiment of the documents on library and information science. / Kando-Matsuyama, Noriko; Kishida, Kazuaki; Mushakoji, Sumiko; Inagaki, Kiyoe; Higuchi, Keiko; Ueda, Shuichi.

In: Library and Information Science, Vol. 1988, No. 26, 1988, p. 103-114.

Research output: Contribution to journalArticle

Kando-Matsuyama, Noriko ; Kishida, Kazuaki ; Mushakoji, Sumiko ; Inagaki, Kiyoe ; Higuchi, Keiko ; Ueda, Shuichi. / A comparative evaluation of thesauri concerning "conceptual representability" : Through an indexing experiment of the documents on library and information science. In: Library and Information Science. 1988 ; Vol. 1988, No. 26. pp. 103-114.
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