| HAL : hal-00414325, version 1 |
| DOI : 10.1016/j.patcog.2009.08.006, |
| Fiche détaillée | Récupérer au format |
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| Pattern Recognition 43 (2010) 850-858 |
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| Parsimonious reduction of Gaussian mixture models with a variational-Bayes approach |
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| Pierrick Bruneau 1, 2Marc Gelgon 1, 2 |
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| (2010) |
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| Aggregating statistical representations of classes is an important task for current trends in scaling up learning and recognition, or for addressing them in distributed in- frastructures. In this perspective, we address the problem of merging probabilistic Gaus- sian mixture models in an efficient way, through the search for a suitable combination of components from mixtures to be merged. We propose a new Bayesian modelling of this combination problem, in association to a variational estimation technique, that handles efficiently the model complexity issue. A main feature of the present scheme is that it merely resorts to the parameters of the original mixture, ensuring low computational cost and possibly communication, should we operate on a distributed system. Experimental results are reported on real data |
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| 1 : | ATLAS (INRIA) |
| INRIA – Université de Nantes | |
| 2 : | Laboratoire d'Informatique de Nantes Atlantique (LINA) |
| CNRS : UMR6241 – Université de Nantes – École Nationale Supérieure des Mines - Nantes | |
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| Domaine | : | Informatique/Apprentissage Informatique/Calcul parallèle, distribué et partagé |
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| modèles probabilistes – mélanges de lois – fusion de modèles |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00414325, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00414325 | |
| oai:hal.archives-ouvertes.fr:hal-00414325 | |
| Contributeur : Marc Gelgon | |
| Soumis le : Mardi 8 Septembre 2009, 17:08:18 | |
| Dernière modification le : Mercredi 29 Août 2012, 22:57:09 | |