%0 Conference Paper %B 2016 IEEE 16th International Conference on Advanced Learning Technologies (ICALT) %D 2016 %T The "Concept Cloud": Supporting Collaborative Knowledge Construction Based on Semantic Extraction from Learner-Generated Artefacts %A Sven Manske %A H. Ulrich Hoppe %B 2016 IEEE 16th International Conference on Advanced Learning Technologies (ICALT) %I IEEE %8 jul %G eng %U https://doi.org/10.1109%2Ficalt.2016.123 %R 10.1109/icalt.2016.123