SEBASTIAN EMILIO VENTURA SOTOCRISTOBAL ROMERO MORALESJOSÉ MARÍA LUNA ARIZA2026-01-292026-01-29202210.1080/10494820.2019.16437422-s2.0-85070218665https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/30684Computer Science ApplicationsEducationSubgroup discovery in MOOCs: a big data application for describing different types of learnersresearch article