The TREC-2001 Video Track Report


New in TREC-2001 was the Video Track, the goal of which was to promote progress in content-based retrieval from digital video via open, metrics-based evaluation. The track built on publicly available video provided by the Open Video Project of the University of North Carolina at Chapel Hill under Gary Marchionini (Marchionini, 2001), the NIST Digital Video Library (Over, 2001), and stock shot video provided for TREC-2001 by the British Broadcasting Corporation (Richard Wright et al). The track used very nice work on shot boundary evaluation done as part of the ISIS Coordinated Research Project (AIM, 2001). This paper is an introduction to the track framework — the tasks, data, and measures. For information about results, see the tables associated with the conference proceedings. TREC research has remained true to its late twentieth century origins, concentrating on retrieval of text documents with only occasional excursions into other media: spoken documents and images of documents. Using TREC as an incubator, the Video Track has pushed into true multimedia territory with respect to formulation of search requests, analysis of multimedia material to be searched (video, audio, transcripts, text in video, music, natural sound, etc), combination of search strategies, and in some cases presentation of results to a human searcher. The TREC video track had 12 participating groups, 5 from US, 2 from Asia and 5 from Europe. 11 hours of MPEG-1 data was collected and distributed as well as 74 topics or queries. What made these queries particularly interesting and challenging was that they were true multimedia queries as they all had video clips, images, or audio clips as part of the query, in addition to a text description. Participating groups used a variety of techniques to match these multimedia queries against the video dataset, some running fully automated techniques and others involving users in interactive search experiments. As might be expected for the first running of such a track, the framework was a bit unorthodox by the standards of mature TREC tracks. Participating groups contributed significant amounts of work toward the creation of the track infrastructure. Search systems were called upon to handle a very wide variety of topic types. We hoped exploring more of the possible territory, though it decreased the likelihood of definitive outcomes in any one area this year, would still generate some interesting results and more importantly provide a good foundation for a more focused track in TREC-2002. In TREC-2001, participating groups were invited to test their systems one or more of the following three tasks/evaluations.

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@inproceedings{Smeaton2001TheTV, title={The TREC-2001 Video Track Report}, author={Alan F. Smeaton and Paul Over and R. Taban}, booktitle={TREC}, year={2001} }