1. Delving into participants' profiles and use of social tools in MOOCs;Alario-Hoyos,2014
2. Systematic review of discussion forums in massive open online courses (MOOCs);Almatrafi,2018
3. Facilitating students' collaboration and learning in a question and answer system;Aritajati,2013
4. Education-specific tag recommendation in CQA systems;Babinec,2017
5. Studying learning in the worldwide classroom: Research into edX's first MOOC;Breslow,2013