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Cobo, M.J.; López-Herrera, A.G.; Herrera-Viedma, E.; Herrera, F.
Journal of informetrics, 2011, 2011-1-00, 20110101, Volume: 5, Issue: 1Journal Article
▶ An approach to analyze the thematic evolution of a research field has been proposed. ▶ Strategic diagrams, themes and thematic networks show the conceptual structure. ▶ Thematic areas show the conceptual evolution. ▶ Quantitative and qualitative measures, as h-index, help users to measure the performance of the detected themes and thematic areas. This paper presents an approach to analyze the thematic evolution of a given research field. This approach combines performance analysis and science mapping for detecting and visualizing conceptual subdomains (particular themes or general thematic areas). It allows us to quantify and visualize the thematic evolution of a given research field. To do this, co-word analysis is used in a longitudinal framework in order to detect the different themes treated by the research field across the given time period. The performance analysis uses different bibliometric measures, including the h-index, with the purpose of measuring the impact of both the detected themes and thematic areas. The presented approach includes a visualization method for showing the thematic evolution of the studied field. Then, as an example, the thematic evolution of the Fuzzy Sets Theory field is analyzed using the two most important journals in the topic: Fuzzy Sets and Systems and IEEE Transactions on Fuzzy Systems.
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