Table 3 First list of important research directions
From: Bibliometric mining of research directions and trends for big data
Thesaurus keywords | Number of docs | Growth rate | Citation count | Sum of ranks | |||
|---|---|---|---|---|---|---|---|
ta i | Rank | gr i | Rank | cc i | Rank | ||
1. Machine learning | 13 716 | 0 | 37 469 | 1 | 189 329 | 0 | 1 |
2. Internet of things | 9 045 | 4 | 24 434 | 3 | 154 725 | 1 | 8 |
3. Data mining | 12 709 | 1 | 13 289 | 10 | 144 045 | 2 | 13 |
4. Cloud computing | 11 323 | 2 | 12 634 | 12 | 142 712 | 3 | 17 |
5. Artificial intelligence | 7 602 | 8 | 62 970 | 0 | 82 644 | 11 | 19 |
6. Healthcare | 7 616 | 7 | 16 808 | 8 | 119 472 | 5 | 20 |
7. Deep learning | 6 415 | 11 | 24 231 | 4 | 102 029 | 6 | 21 |
8. Security and privacy | 10 165 | 3 | 12 300 | 13 | 101 813 | 7 | 23 |
9. Review | 5 177 | 12 | 16 654 | 9 | 139 208 | 4 | 25 |
10. Neural networks | 7 403 | 9 | 17 831 | 7 | 88 398 | 10 | 26 |
11. Manufacturing | 4 707 | 13 | 18 734 | 6 | 92 269 | 9 | 28 |
12. Smart cities | 3 053 | 16 | 5 402 | 31 | 51 501 | 14 | 61 |