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Article . 2005
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Article . 2005
License: CC BY
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Article . 2005
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Une approche conceptuelle pour la mod��lisation et la structuration s��mantique des documents vid��os

Authors: Sadek Mansouri, Mbarek Charhad, Mounir Zrigui;

Une approche conceptuelle pour la mod��lisation et la structuration s��mantique des documents vid��os

Abstract

L ���accroissement rapide de la masse de documents vid��os num��riques, aussi bien sur Internet que dans les archives et les bases personnelles, n��cessite la mise en place d ���outils et de m��thodes capables de d��crire et de mod��liser le contenu, afin de faciliter l ���acc��s, la consultation et aussi la navigation dans ces documents. Nous pr��sentons dans cet article, une approche de mod��lisation conceptuelle du contenu s��mantique. Celle-ci se base sur une description par des concepts et des relations conceptuelles. Les concepts sont rassembl��s en des classes de sorte qu ���on puisse pour chaque classe ��num��rer la liste des instances correspondante. Des relations s��mantiques telle que les relations spatiales sont utilis��es pour sp��cifier des emplacements, des relations temporelles couvrent le crit��re dynamique de la vid��o et d ���autres relations faisant r��f��rence �� des activit��s (s ���adresser, marcher, rencontrer, etc.���) permettent de d��crire ce qui se passe. Les concepts et les relations conceptuelles sont repr��sent��s dans un sch��ma de mod��lisation en utilisant le formalisme des graphes conceptuels. Ce sch��ma permet de conserver la structure hi��rarchique du document vid��o du fait que les descriptions sont structur��es de fa��on �� respecter la chronologie et l ���ordre de passage dans le document vid��o. Nous avons appliqu�� ce sch��ma de mod��lisation sur le corpus TREC2003 (120 heures de journaux t��l��vis��s). Notre objectif est d ���int��grer ce sch��ma de structuration s��mantique dans le cadre d ���un syst��me d ���indexation et de recherche vid��o par le contenu afin d ���am��liorer sa performance en termes de rappel et de pr��cision.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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