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Cédric WILLIAMSON
Cédric WILLIAMSON
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Les enjeux scientifiques de l’indexation vidéo Patrick Gros Responsable de l’équipe TEXMEX INRIA Rennes et IRISA http://www.irisa.fr/texmex
Qu’est ce que l’indexation vidéo ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Des applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Quelques opérations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Des opérations de base ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mais… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Les problèmes scientifiques ,[object Object],[object Object],[object Object],[object Object]
La temporalité ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exemple des Modèles de Markov cachés ,[object Object],[object Object],[object Object],[object Object]
Exemple des Modèles de Markov cachés ,[object Object],[object Object],[object Object],[object Object]
Exemple des Modèles de Markov cachés ,[object Object],[object Object],[object Object],[object Object],[object Object]
La généricité ,[object Object],[object Object],[object Object]
La généricité ,[object Object],[object Object],[object Object],[object Object]
La généricité ,[object Object],[object Object],[object Object]
La multimodalité ,[object Object],[object Object],[object Object]
La sémantique ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
La sémantique ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Adaptation dynamique ,[object Object],[object Object],€ ASR system ... receives a single electoral vote in this state Un flux long (audio)‏ Hypothèse de transcription (texte)‏ ... ...
Web-based topic adaptation ... ... € … thus a candidate who fails to carry a particular state receives not a single electoral vote in that state for the popular votes received since residential elections are won by electoral ... candidate state election 3. Building of an adaptation corpus candidate vote electoral vote 2. Querying 1. Keyword spotting Adaptation LM 4.a Training of a topic-specific LM 4.b Mix of this LM and the general one Baseline LM + Adapted LM = Web search engine ✘ ✔ ✔ ✔ ✘ ✔ ✘ ✔
La sémantique ,[object Object],[object Object]
Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Irisa p gros

  • 1. Les enjeux scientifiques de l’indexation vidéo Patrick Gros Responsable de l’équipe TEXMEX INRIA Rennes et IRISA http://www.irisa.fr/texmex
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  • 19. Web-based topic adaptation ... ... € … thus a candidate who fails to carry a particular state receives not a single electoral vote in that state for the popular votes received since residential elections are won by electoral ... candidate state election 3. Building of an adaptation corpus candidate vote electoral vote 2. Querying 1. Keyword spotting Adaptation LM 4.a Training of a topic-specific LM 4.b Mix of this LM and the general one Baseline LM + Adapted LM = Web search engine ✘ ✔ ✔ ✔ ✘ ✔ ✘ ✔
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