co-occurrence frequency | MOOC | higher education | online education | model of teaching | reform | college library | Micro-lesson |
MOOC | 324 | 11 | 15 | 15 | 12 | 16 | 14 |
higher education | 11 | 26 | 4 | 0 | 3 | 0 | 0 |
online education | 15 | 4 | 24 | 2 | 1 | 0 | 0 |
model of teaching | 15 | 0 | 2 | 24 | 0 | 0 | 1 |
reform | 12 | 3 | 1 | 0 | 23 | 0 | 0 |
college library | 16 | 0 | 0 | 0 | 0 | 21 | 0 |
Micro-lesson | 14 | 0 | 0 | 1 | 0 | 0 | 21 |