Currently, with the increasing advancement of interactive learning technologies in MOOCs, a large number of student-generated comments (SGCs) have been substantially produced with two primary emotions (positive and negative). The emotional orientations are typically related with specific learning topics or aspects discussed, which is of value to offer abundant academic feedbacks for teachers and developers. Especially, the negative emotion and topics can be exploited to get an in-depth insight of the problems and barriers encountered by learners in online learning. However, it is challenging t...
