The continuous hint factory-providing hints in vast and sparsely populated edit distance spaces

B Paaßen, B Hammer, TW Price, T Barnes… - ar** teachers improve feedback in computer programming automated tutors
J McBroom, K Yacef, I Koprinska, JR Curran - Artificial Intelligence in …, 2018‏ - Springer
The increasing prevalence and sophistication of automated tutoring systems necessitates
the development of new methods for their evaluation and improvement. In particular, data …

Characteristics of productive feedback encounters in online learning

LX Jensen, M Bearman, D Boud - Teaching in Higher Education, 2023‏ - Taylor & Francis
Understanding how students engage with feedback is often reduced to a study of feedback
messages that sheds little light on effects. Using the emerging notion of feedback …

Time series prediction for graphs in kernel and dissimilarity spaces

B Paaßen, C Göpfert, B Hammer - Neural Processing Letters, 2018‏ - Springer
Graphs are a flexible and general formalism providing rich models in various important
domains, such as distributed computing, intelligent tutoring systems or social network …

Clustering introductory computer science exercises using topic modeling methods

LO Moraes, CE Pedreira - IEEE Transactions on Learning …, 2021‏ - ieeexplore.ieee.org
Manually determining concepts present in a group of questions is a challenging and time-
consuming process. However, the process is an essential step while modeling a virtual …