  Massive Open Online Courses (MOOCs) have become popular platforms for online
learning. While MOOCs enable students to study at their own pace, this
flexibility makes it easy for students to drop out of class. In this paper, our
goal is to predict if a learner is going to drop out within the next week,
given clickstream data for the current week. To this end, we present a
multi-layer representation learning solution based on branch and bound (BB)
algorithm, which learns from low-level clickstreams in an unsupervised manner,
produces interpretable results, and avoids manual feature engineering. In
experiments on Coursera data, we show that our model learns a representation
that allows a simple model to perform similarly well to more complex,
task-specific models, and how the BB algorithm enables interpretable results.
In our analysis of the observed limitations, we discuss promising future
directions.
