Semantic similarities between a keyword database and a controlled vocabulary database: An investigation in the antibiotic resistance literature

Abstract

The KeyWords Plus in the Science Citation Index database represents an approach to combining citation and semantic indexing in describing the document content. This paper explores the similarities or dissimilarities between citation‐semantic and analytic indexing. The dataset consisted of over 400 matching records in the SCI and MEDLINE databases on antibiotic resistance in pneumonia. The degree of similarity in indexing terms was found to vary on a scale from completely different to completely identical with various levels in between. The within‐document similarity in the two databases was measured by a variation on the Jaccard Coefficient—the Inclusion Index. The average inclusion coefficient was 0.4134 for SCI and 0.3371 for MEDLINE. The 20 terms occurring most frequently in each database were identified. The two groups of terms shared the same terms that consist of the “intellectual base” for the subject. Conceptual similarity was analyzed through scatterplots of matching and nonmatching terms vs. partially identical and broader/narrower terms. The study also found that both databases differed in assigning terms in various semantic categories. Implications of this research and further studies are suggested.

Classifying documents with link-based bibliometric measures

“…This assumption is reinforced by studies on inter-indexing inconsistencies in intellectual indexing research. For instance, Qin has investigated dissimilarities between citationsemantic and analytic indexing, emphasizing the high degree of variation regarding the keywords and semantic categories used to describe document contents (Qin 2000). Subclasses in boldface occurred more than three times in the list of the k nearest neighbors of the test document To test this assumption we conducted another experiment in order to study human classification of those unsuccessful cases.…”

Global stem cell research trend: Bibliometric analysis as a tool for mapping of trends from 1991 to 2006

“…ARRUE & LOPEZ [1991] evaluated the growth pattern of conservation tillage research based primarily on abstracts published in Soils and Fertilizers. QIN [2000] first attempted to use the keywords plus to investigate the antibiotic resistance research. The keyword plus in the SCI database supplied additional search terms extracted from the titles of articles cited by authors in their bibliographies and footnotes [GARFIELD, 1990].…”

Uso das linguagens controlada e natural em bases de dados: revisão da literatura

“…Knapp, Cohen & Juedes (1998) "A LC e a LN não podem mais ser tratadas como técnicas de busca separadas, mas devem sempre ser tratadas em conjunto, como uma combinação ideal para ampliar os resultados das buscas de informação." (Muddamalle, 1998, p. 887) Com o objetivo de identificar as similaridades semânticas no processo de recuperação da informação, Qin (2000) escolheu um assunto específico na área de saúde: resistência a antibióticos. "Uma linguagem normalizada que seleciona da linguagem natural um conjunto restrito de palavras e frases, tratando esse conjunto semanticamente para o estabelecimento das relações com outros termos."…”