Table 5.
Emerging topics in the field of IoV.
| No. | Keywords | Cluster 1 Keyword Counting (1993–2019) |
Cluster 2 Keyword Counting (2020–2022) |
Emerging Topic |
|---|---|---|---|---|
| 1 | BLOCKCHAINS | 32 | 261 | ◎ |
| 2 | ROADS | 8 | 225 | ◎ |
| 3 | VEHICLE DYNAMICS | 9 | 194 | ◎ |
| 4 | 5G MOBILE COMMUNICATION | 39 | 190 | ◎ |
| 5 | SAFETY | 29 | 187 | ◎ |
| 6 | DEEP LEARNING | 19 | 181 | ◎ |
| 7 | EDGE COMPUTING | 23 | 155 | ◎ |
| 8 | COMPUTATIONAL MODELING | 4 | 123 | ◎ |
| 9 | SENSORS | 8 | 122 | ◎ |
| 10 | CLOUD COMPUTING | 29 | 112 | ◎ |
| 11 | REINFORCEMENT LEARNING | 11 | 79 | ◎ |
| 12 | COMPUTER ARCHITECTURE | 2 | 76 | ◎ |
| 13 | REAL-TIME SYSTEMS | 4 | 71 | ◎ |
| 14 | 6G MOBILE COMMUNICATION | 0 | 58 | ◎ |
Differential analysis of keywords used in studies published between 2013 and 2019 and keywords used in studies published between 2020 and 2022. ◎ indicates that a keyword is related to an emerging topic (Cluster 1 < 50 and Cluster 2 minus Cluster 1 > 50).