The main trends for multi-tier supply chain in Industry 4.0 based on Natural Language Processing

R Zhou, A Awasthi, J Stal-Le Cardinal - Computers in Industry, 2021 - Elsevier
Multi-tier supply chains in Industry 4.0 are critical emerging issues today. This article briefly
examines the Industry 4.0 policies in different countries. In order to decide on a better model
and the number of topics in the model, a comparative test of the coherence value for two
machine learning classification methods based on Latent Dirichlet Allocation was
conducted. Subsequently, the article combines the traditional literature review method with a
survey article referring to Industry 4.0 and multi-tier supply chain, indexed by science citation …
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