– Talks –

• Invited speaker, Towards Constructing Intelligent Educational Applications with Language Technologies, Workshop on Artificial Intelligence for Education, Huawei Technologies Co., Ltd., China, 2021.
• Invited speaker, Towards Building Intelligent Educational Applications with Artificial Intelligence, The Symposium on Artificial Intelligence and Big Data, Hong Kong Open University, Hong Kong, China, 2019.
• Keynote speaker, Understanding and Engaging MOOC Learners: A Data-driven Approach, Doctoral Student Forum on MOOC Research, Peking University, Beijing, China, 2017.

– Journal Editor –

• Editorial Board Member, Computers & Education: Artificial Intelligence, since 2021
• Guest Editor, International Journal of Mobile Learning and Organisation, Special Issue on Intelligent Language Acquisition in the Mobile Era, 2021

– Conference & Workshop Organization –

• General Co-Chair, The 5th International Symposium on Emerging Technologies for Education, 2020
• Track Chair, The 4th International Symposium on Emerging Technologies for Education, 2019
• Co-chair, Workshop on Integrated Learning Analytics of MOOC Post-Course Development, 2017
• Co-organizer, The 15th Dutch-Belgian Information Retrieval Workshop, 2016

– Program Committee Member –

• ACM International Conference on Supporting Group Work (GROUP), 2022
• The IEEE International Conference on Advanced Learning Technologies (ICALT), 2021
• The AAAI Conference on Artificial Intelligence, 2021
• The International Conference on Educational Data Mining (EDM), 2019 & 2020
• The International Conference on Artificial Intelligence in Education (AIED), 2020 & 2021
• The International Conference on Learning Analytics and Knowledge (LAK), 2018 & 2019 & 2020 & 2021 & 2022
• Workshop on Innovative Use of NLP for Building Educational Applications (BEA), 2020 & 2021
• The International Baltic Conference on Databases and Information Systems (Baltic DB&IS), 2020
• The International Symposium on Emerging Technologies for Education, 2018
• The International Conference on Web-based Learning (ICWL), 2017 & 2018
• The Global Chinese Conference on Computers in Education, 2018
• The 1st International Symposium on User Modeling and Language Learning, 2017
• Workshop on FutureLearn data: what we currently have, what we are learning and how it is demonstrating learning in MOOCs, 2017
• Workshop on FutureLearn data, 2017
• The International Workshop on Semantic Computing and Personalization, 2016

– Invited Reviewer –

• Journal of Computer Assisted Learning, 2021
• The International Conference on Learning Representations (ICLR), 2021 & 2022
• Computers & Education, 2017 & 2018 & 2019 & 2020 & 2021
• IEEE Transactions on Learning Technologies, 2017 & 2018 & 2020 & 2021
• Computers in Human Behavior, 2020 & 2021
• Big Data Research, 2020
• British Journal of Educational Technology, 2020
• Journal of Web Engineering, 2020
• The 12th International Conference on Educational Data Mining, 2019
• IEEE Transactions on Systems, Man and Cybernetics: Systems, 2017
• ACM Computing Surveys, 2016
• International Journal of Distance Education Technologies, 2015