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TRECVid 2005 experiments at Dublin City University
Foley, Colum; Gurrin, Cathal; Jones, Gareth J.F.; Lee, Hyowon; McGivney, Sinéad; O'Connor, Noel E.; Sav, Sorin Vasile; Smeaton, Alan F.; Wilkins, Peter
In this paper we describe our experiments in the automatic and interactive search tasks and the BBC rushes pilot task of TRECVid 2005. Our approach this year is somewhat different than previous submissions in that we have implemented a multi-user search system using a DiamondTouch tabletop device from Mitsubishi Electric Research Labs (MERL).We developed two versions of oursystem one with emphasis on efficient completion of the search task (Físchlár-DT Efficiency) and the other with more emphasis on increasing awareness among searchers (Físchlár-DT Awareness). We supplemented these runs with a further two runs one for each of the two systems, in which we augmented the initial results with results from an automatic run. In addition to these interactive submissions we also submitted three fully automatic runs. We also took part in the BBC rushes pilot task where we indexed the video by semi-automatic segmentation of objects appearing in the video and our search/browsing system allows full keyframe and/or object-based searching. In the interactive search experiments we found that the awareness system outperformed the efficiency system. We also found that supplementing the interactive results with results of an automatic run improves both the Mean Average Precision and Recall values for both system variants. Our results suggest that providing awareness cues in a collaborative search setting improves retrieval performance. We also learned that multi-user searching is a viable alternative to the traditional single searcher paradigm, provided the system is designed to effectively support collaboration.
Keyword(s): Information storage and retrieval systems; Digital video
Publication Date:
2005
Type: Other
Peer-Reviewed: Unknown
Language(s): English
Institution: Dublin City University
Citation(s): Foley, Colum, Gurrin, Cathal ORCID: 0000-0003-4395-7702 <https://orcid.org/0000-0003-4395-7702>, Jones, Gareth J.F. ORCID: 0000-0003-2923-8365 <https://orcid.org/0000-0003-2923-8365>, Lee, Hyowon ORCID: 0000-0003-4395-7702 <https://orcid.org/0000-0003-4395-7702>, McGivney, Sinéad, O'Connor, Noel E. ORCID: 0000-0002-4033-9135 <https://orcid.org/0000-0002-4033-9135>, Sav, Sorin Vasile, Smeaton, Alan F. ORCID: 0000-0003-1028-8389 <https://orcid.org/0000-0003-1028-8389> and Wilkins, Peter (2005) TRECVid 2005 experiments at Dublin City University. In: TRECVid 2005 - Text REtrieval Conference TRECVID Workshop, 14-15 November 2005, Gaithersburg, Maryland.
Publisher(s): NIST
File Format(s): application/pdf
Related Link(s): http://doras.dcu.ie/426/1/trecvid_2005.pdf
First Indexed: 2009-11-05 02:00:41 Last Updated: 2019-02-09 07:03:30