From: Big data in education: a state of the art, limitations, and future research directions
Databases | Before results | After results |
---|---|---|
IEEE Xplore | 158 | 8 |
ScienceDirect | 90 | 14 |
Emerald insight | 81 | 4 |
AIS Electronic Library | 52 | 1 |
Sage | 50 | 5 |
ACM Digital Library | 73 | 5 |
Springer Link | 38 | 1 |
Taylor and Francis | 17 | 2 |
Google Scholar | 1 | – |
 |  | 40 |