TY - BOOK T1 - Learning Group Composition and Re-composition in Large-scale Online Learning Contexts AU - Zheng, Z. TI - PhD thesis, HU Berlin PY - 2017 M3 - doi:10.18452/18412 ER - TY - CHAP T1 - Recomposing Small Learning Groups at Scale - A Data-driven Approach and a Simulation Experiment AU - Zheng, Z. AU - Pinkwart, N. TI - Bildungsräume 2017 PY - 2017 PB - Gesellschaft für Informatik, Bonn SP - 321 EP - 332 UR - https://dl.gi.de/bitstream/handle/20.500.12116/4857/B33%20Recomposing%20Small%20Learning%20Group%20at%20Scale%20-%20A%20Data-driven%20Approach%20and%20a%20SImulation%20Experiment.pdf ER - TY - CHAP T1 - An Ensemble Method to Predict Student Performance in an Online Math Learning Environment AU - Stapel, M. AU - Zheng, Z. AU - Pinkwart, N. TI - Proceedings of the 9th International Conference on Educational Data Mining (EDM 2016) PY - 2016 UR - http://www.educationaldatamining.org/EDM2016/proceedings.html ER - TY - CHAP T1 - Perfect Scores Indicate Good Students !? The Case of One Hundred Percenters in a Math Learning System AU - Zheng, Z. AU - Stapel, M. AU - Pinkwart, N. TI - Proceedings of the 9th International Conference on Educational Data Mining (EDM 2016) PY - 2016 UR - http://www.educationaldatamining.org/EDM2016/proceedings.html ER - TY - CHAP T1 - The Impact of Small Learning Group Composition on Student Engagement and Success in a MOOC AU - Zheng, Z. AU - Vogelsang, T. AU - Pinkwart, N. TI - Proceedings of the 8th International Conference on Educational Data Mining (EDM 2015) PY - 2015 UR - http://educationaldatamining.org/EDM2015/index.php?page=proceedings ER - TY - CHAP T1 - Dynamic Re-Composition of Learning Groups Using PSO-Based Algorithms AU - Zheng, Z. AU - Pinkwart, N. TI - Proceedings of the 7th International Conference on Educational Data Mining (EDM) PY - 2014 ER - TY - CHAP T1 - Predicting MOOC Dropout over Weeks Using Machine Learning Methods AU - Kloft, M. AU - Stiehler, F. AU - Zheng, Z. AU - Pinkwart, N. TI - Proceedings of the 2014 Empirical Methods in Natural Language Processing Workshop on Modeling Large Scale Social Interaction in Massively Open Online Courses PY - 2014 PB - Association for Computational Linguistics ER - TY - CHAP T1 - A Discrete Particle Swarm Optimization Approach to Compose Heterogeneous Learning Groups AU - Zheng, Z. AU - Pinkwart, N. TI - Proceedings of the 14th IEEE International Conference on Advanced Learning Technologies (ICALT) PY - 2014 PB - IEEE Computer Society Press M3 - doi:10.1109/ICALT.2014.24 ER - TY - CHAP T1 - A Dynamic Group Composition Method to Refine Collaborative Learning Group Formation AU - Zheng, Z. TI - Proceedings of the 6th International Conference on Educational Data Mining (EDM) PY - 2013 ER -