OffVid: A System for Linking Off-Topic Concepts to Topically Relevant Video Lecture Segments

We present a system for automatically connecting off-topic concepts from a video lecture to appropriate and topically relevant video lecture segments. The linked video lectures are expected to provide more detailed account of the corresponding off-topic concept. The system is realized with three modules: off-topic identification, topic base generation and segment linking. We modelled the problem of finding off-topic concept identification task...