Research Article
Classification and Evolution Analysis of Key Transportation Technologies Based on Bibliometrics
Table 3
Technologies and their classification (partial).
| | Super-key | Key | Relative key | Lower-key |
| | EV, machine learning, vehicle technology, and so on | GA, AI, traffic control, and so on | Fuzzy logit, statistical analysis, 4G, and so on | Simulation, scheduling, network technology, and so on |
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