1. Study of Human Tacit Knowledge Based on Electroencephalogram Signal Characteristics
- Author
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Hong Wang, Jichi Chen, Enqiu He, Tao Zhang, and Chengcheng Hua
- Subjects
Process (engineering) ,Computer science ,graph theory ,Neurosciences. Biological psychiatry. Neuropsychiatry ,Electroencephalography ,Machine learning ,computer.software_genre ,industrial process ,03 medical and health sciences ,0302 clinical medicine ,Tacit knowledge ,medicine ,functional brain network ,Original Research ,Grinding process ,medicine.diagnostic_test ,business.industry ,General Neuroscience ,SIGNAL (programming language) ,tacit knowledge ,Graph theory ,Cognition ,Coherence (statistics) ,electroencephalogram ,030227 psychiatry ,Artificial intelligence ,business ,computer ,030217 neurology & neurosurgery ,RC321-571 ,Neuroscience - Abstract
Tacit knowledge is the kind of knowledge that is difficult to transfer to another person by means of writing it down or verbalizing it. In the mineral grinding process, the proficiency of the operators depends on the tacit knowledge gained from their experience and training rather than on knowledge learned from a handbook. This article proposed a method combining the electroencephalogram (EEG) signals and the industrial process to detect the proficiency of the operators in the mineral grinding process to reveal the effect of tacit knowledge on the functional cortical connection. The functional brain networks of operators were established based on partial direct coherence and directed transfer function of EEG, and the multi-classifiers were used with the graph-theoretic indexes of the FBNs as input to distinguish the trained operators (Hps) from the non-trained operators (Lps). The results showed that the brain networks of Hps had a better connectivity than those of Lps (p < 0.01), and the accuracy of classification was up to 94.2%. Our studies confirm that based on the performance of EEG features and the combination of industrial operational operation and cognitive processes, the proficiency of the operators can be detected.
- Published
- 2021