Video Lectures Mashup - remixing learning materials for topic-centred learning across collections

In this paper, we introduce the VideoLecturesMashup, which presents re-mixes of learning materials from the VideoLectures.NET portal based on shared topics across different lectures. Learners need more efficient access to teaching on specific topics which could be part of a larger lecture (focused on a different topic) and occur across lectures from different collections in distinct domains. Current e-learning video portals can not address this need, either to quickly dip into a shorter part focused on a specific topic of a longer lecture or to explore what is taught about a certain topic easily across collections. Through application of media technologies promoted by the MediaMixer project - semantic annotation and media fragment URIs - we have implemented a first demo of VideoLecturesMashup.