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Diversity ranking for video retrieval from a broadcaster archive
dc.contributor.author | Giró Nieto, Xavier |
dc.contributor.author | Alfaro Vendrell, Mónica |
dc.contributor.author | Marqués Acosta, Fernando |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2011-06-22T10:49:20Z |
dc.date.available | 2011-06-22T10:49:20Z |
dc.date.issued | 2011 |
dc.identifier.citation | Giró Nieto, X.; Alfaro Vendrell, M.; Marqués Acosta, F. Diversity ranking for video retrieval from a broadcaster archive. A: ACM International Conference on Multimedia Retrieval. "Proceedings of the 1st ACM International Conference on Multimedia Retrieval (ICMR '11)". 2011, p. 1-8. ISBN 978-1-4503-0336-1. DOI 10.1145/1991996.1992052. |
dc.identifier.isbn | 978-1-4503-0336-1 |
dc.identifier.uri | http://hdl.handle.net/2117/12810 |
dc.description.abstract | Video retrieval through text queries is a very common practice in broadcaster archives. The query keywords are compared to the metadata labels that documentalists have previously associated to the video assets. This paper focuses on a ranking strategy to obtain more relevant keyframes among the top hits of the results ranked lists but, at the same time, keeping a diversity of video assets. Previous solutions based on a random walk over a visual similarity graph have been modi ed to increase the asset diversity by ltering the edges between keyframes depending on their asset. The random walk algorithm is applied separately for ever visual feature to avoid any normalization issue between visual similarity metrics. Finally, this work evaluates performance with two separate metrics: the relevance is measured by the Average Precision and the diversity is assessed by the Average Diversity, a new metric presented in this work. |
dc.format.extent | 8 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo |
dc.subject | Àrees temàtiques de la UPC::So, imatge i multimèdia::Creació multimèdia::Vídeo digital |
dc.subject.lcsh | Signal processing- Digital techniques |
dc.subject.lcsh | Digital video |
dc.subject.lcsh | Image processing--Digital techniques |
dc.title | Diversity ranking for video retrieval from a broadcaster archive |
dc.type | Conference lecture |
dc.subject.lemac | Vídeo digital |
dc.subject.lemac | Tractament del senyal -- Tècniques digitals |
dc.subject.lemac | Imatges -- Processament -- Tècniques digitals |
dc.contributor.group | Universitat Politècnica de Catalunya. GPI - Grup de Processament d'Imatge i Vídeo |
dc.identifier.doi | 10.1145/1991996.1992052 |
dc.relation.publisherversion | http://dx.doi.org/10.1145/1991996.1992052 |
dc.rights.access | Open Access |
local.identifier.drac | 5797824 |
dc.description.version | Preprint |
local.citation.contributor | ACM International Conference on Multimedia Retrieval |
local.citation.publicationName | Proceedings of the 1st ACM International Conference on Multimedia Retrieval (ICMR '11) |
local.citation.startingPage | 1 |
local.citation.endingPage | 8 |