Using ‘core documents’ for detecting and labelling new emerging topics

The notion of ‘core documents’, first introduced in the context of co-citation analysis and later re-introduced for bibliographic coupling and extended to hybrid approaches, refers to the representation of the core of a document set according to given criteria. In the present study, core documents a...

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Bibliographic Details
Published inScientometrics Vol. 91; no. 2; pp. 399 - 416
Main Authors Glänzel, Wolfgang, Thijs, Bart
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.05.2012
Subjects
Bibliographic coupling
Clustering
Computer Science
Core materials
Information Storage and Retrieval
Library Science
Subject fields
Text mining
Bibliographic coupling
Hybrid clustering
Core documents
Emerging topics
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Summary:The notion of ‘core documents’, first introduced in the context of co-citation analysis and later re-introduced for bibliographic coupling and extended to hybrid approaches, refers to the representation of the core of a document set according to given criteria. In the present study, core documents are used for the identification of new emerging topics. The proposed method proceeds from independent clustering of disciplines in different time windows. Cross-citations between core documents and clusters in different periods are used to detect new, exceptionally growing clusters or clusters with changing topics. Three paradigmatic types of new, emerging topics are distinguished. Methodology is illustrated using the example of four ISI subject categories selected from the life sciences, applied sciences and the social sciences.
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ISSN:0138-9130
1588-2861
DOI:10.1007/s11192-011-0591-7