Knowledge transmission model on the coupled network formed by WeChat group and offline communication

ZHU Hongmiao, ZHANG Shengtai, JIN Zhen, YAN Xin

Systems Engineering - Theory & Practice ›› 2019, Vol. 39 ›› Issue (7) : 1796-1806.

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Systems Engineering - Theory & Practice ›› 2019, Vol. 39 ›› Issue (7) : 1796-1806. DOI: 10.12011/1000-6788-2018-1428-11

Knowledge transmission model on the coupled network formed by WeChat group and offline communication

  • ZHU Hongmiao1, ZHANG Shengtai2, JIN Zhen3, YAN Xin4
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Abstract

This paper constructs a knowledge transmission model on the coupled network formed by WeChat group and offline communication. The model considers the effect of the change in the number of exchange of knowledge in the WeChat group on the knowledge spreading rate in the offline subnetwork. The threshold conditions for distinguishing whether the knowledge propagates in the coupled network are derived. Further, it is verified that the transmission threshold is always a finite number. Finally, the numerical simulations of the propagation process on the coupled network are conducted based on the actual data. Results show that the transmission threshold in the offline subnet layer of the coupled network is greater than or equal to the transmission threshold in a single offline network, and less than or equal to the transmission threshold in the coupled network. The transmission threshold and the final propagation scale are larger in the model of the online communication rate changing with the number of exchange of the knowledge in the WeChat group compared with the coupled network model with a positive constant transmission rate in one layer. Study also shows that the network structure has a significant impact on knowledge transmission. If the offline sub-network is scale-free, then the transmission threshold and the final size of knowledge spreading in the coupled network will be larger compared to that is homogeneous network even if the number of knowledge owners at the initial time is small. If the offline sub-network is scale-free, then the spreading speed is faster compared to that is homogeneous network.

Key words

knowledge transmission / coupled network / WeChat group / transmission threshold / network structure

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ZHU Hongmiao , ZHANG Shengtai , JIN Zhen , YAN Xin. Knowledge transmission model on the coupled network formed by WeChat group and offline communication. Systems Engineering - Theory & Practice, 2019, 39(7): 1796-1806 https://doi.org/10.12011/1000-6788-2018-1428-11

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Funding

Major Project of National Social Science Foundation of China (16ZDA55); National Natural Science Foundation of China (71271032); Humanities and Social Sciences Foundation of Ministry of Education of China (18YJC630220); Youth Project of Philosophy and Social Sciences Planning in Shanghai (2018EGL016)
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