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This study aimed to identify emerging industrial root technologies from the unstructured text of journal papers, in order to establish a research and development (R&amp;D) strategy. Hence, a structural topic model and topic matrix analysis were employed to evaluate the promising topics in Korean and international root technology papers, published from 2011 to 2019, from a domestic perspective. Subsequently, 75 topics in the main research domains of root technology were identified. Of these identified topics, five requiring leading R&amp;D and five requiring follow-up R&amp;D were selected based on priority: ‘Corrosion’, ‘device current–voltage characteristics’, ‘electrode’, ‘carbide alloy’, and ‘titanium alloy’ were determined to be the leading R&amp;D topics, whereas ‘material applications’, ‘photocatalytic activity’, ‘additive manufacturing’, ‘ductility’, and ‘high-entropy alloy’ were determined to be the follow-up R&amp;D topics. These results are significant because journal articles were used to determine emerging technologies according to the differences between the research published in Korean and international journals.

Emerging industrial root technologies: a structural topic model- and topic matrix analysis-based approach