Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/10770
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dc.contributor.authorPinto, José Pedro-
dc.contributor.authorViana, Paula-
dc.date.accessioned2018-01-12T15:36:27Z-
dc.date.available2018-01-12T15:36:27Z-
dc.date.issued2013-
dc.identifier.urihttp://hdl.handle.net/10400.22/10770-
dc.description.abstractCreating descriptive labels for videos is an important task, with application in video retrieval, Web accessibility and computer vision. However automatic creation of such labels is difficult and, alternatively, having professionals manually describing content is too expensive. Engaging end-users in the process of describing multimedia assets may lead to good results and enables creating the sense of participation which is currently one of the key factors to attract customers to a service. The existing approaches are highly successful in terms of number of engaged players and number of collected labels, but hardly create comprehensive tag sets, contributing both with generic or too narrow meaning tags. "Games With A Purpose" are one of the approaches that have been used in an attempt to create comprehensive video descriptions by harnessing the intelligence of human players and have them contributing and collaborating towards a common goal that is recognized if successful. This paper describes a game which implements two mechanisms for collecting data via human-based computation games. Tags introduced by registered players, in a given timecode, are validated based on a collaborative scoring mechanism that eliminates irregular annotations. Additionally, a voting mechanism that enables players to endorse or refuse existing tags, provides an extra instrument to guarantee the quality of the annotations.pt_PT
dc.language.isoengpt_PT
dc.publisherAssociation for Computing Machinerypt_PT
dc.rightsclosedAccesspt_PT
dc.subjectGames with a purposept_PT
dc.subjectCrowdsourcingpt_PT
dc.subjectTaggingpt_PT
dc.subjectVideo annotationpt_PT
dc.titleTAG4VD: a game for collaborative video annotationpt_PT
dc.typearticlept_PT
dc.peerreviewedyespt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
degois.publication.firstPage25pt_PT
degois.publication.lastPage28pt_PT
degois.publication.locationBarcelona, Spain — October 22 - 22, 2013pt_PT
degois.publication.titleProceedings of the 2013 ACM international workshop on Immersive media experiencespt_PT
dc.relation.publisherversionhttps://dl.acm.org/citation.cfm?doid=2512142.2512154pt_PT
dc.identifier.doi10.1145/2512142.2512154pt_PT
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