Teaching and learning as multimedia authoring: the classroom 2000 project
MULTIMEDIA '96 Proceedings of the fourth ACM international conference on Multimedia
Information Visualization Within a Digital Video Library
Journal of Intelligent Information Systems - Special issue on information visualization: the next frontier
Passive capture and structuring of lectures
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Segmentation of Lecture Videos Based on Text: A Method Combining Multiple Linguistic Features
HICSS '04 Proceedings of the Proceedings of the 37th Annual Hawaii International Conference on System Sciences (HICSS'04) - Track 1 - Volume 1
Analysis and Visualization of Index Words from Audio Transcripts of Instructional Videos
ISMSE '04 Proceedings of the IEEE Sixth International Symposium on Multimedia Software Engineering
Analysis and interface for instructional video
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1
Selection and ranking of text from highly imperfect transcripts for retrieval of video content
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
VAST MM: multimedia browser for presentation video
Proceedings of the 6th ACM international conference on Image and video retrieval
Are Visual Informatics Actually Useful in Practice: A Study in a Film Studies Context
IVIC '09 Proceedings of the 1st International Visual Informatics Conference on Visual Informatics: Bridging Research and Practice
Proceedings of the international conference on Multimedia
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In this paper, we present extensive user studies on browsing and information retrieval in the domain of unstructured videos using the VAST MM video library browser. Our studies were performed over a 3-year period with more than 1,000 participants in the university setting. The majority of students use the video library for retrieval of student presentations in a large engineering design course. Through iterative analysis of context-specific audio, visual, and textual cues, we are able to measure significant improvements on typical retrieval tasks, such as searching for unfamiliar content in a large database with over 300 hours of video. We also present user studies conducted in two videotaped core computer science courses to measure the usefulness of the VAST MM (Video Audio Structure Text MultiMedia) resource for final exam preparation. We find that students who use the lecture video library experience significant improvement in final exam scores. To better compare video browsers featuring rich content cues to standard video players without cues, we have performed a large experiment to collect measurable data on search tasks. In general, the lack of index cues can be described by an inverse relationship between amount of matching video content and time required to find it. When index cues are available, the relationship is constant, that is, rare content is found in the same time as common content. We evaluate this data and provide additional insight into two common user interaction techniques: audio-visual browsing and visual-only browsing. We show that user preference is uniform, but that audio-visual browsing is significantly more effective for search and retrieval of video data.