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| HAL : hal-00730423, version 1 |
| Fiche détaillée |  Récupérer au format |
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| 2012 IEEE Statistical Signal Processing Workshop (SSP 2012), Ann Arbor, Michigan : États-Unis (2012) |
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| Preprocessing for classification of sparse data: application to trajectory recognition |
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| Aurélien Mayoue 1Quentin Barthélemy 1, 2 |
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| (07/08/2012) |
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| On one hand, sparse coding, which is widely used in signal processing, consists of representing signals as linear combinations of few elementary patterns selected from a dedicated dictionary. The output is a sparse vector containing few coding coefficients and is called sparse code. On the other hand, Multilayer Perceptron (MLP) is a neural network classification method that learns non linear borders between classes using labeled data examples. The MLP input data are vectors, usually normalized and preprocessed to minimize the inter-class correlation. This article acts as a link between sparse coding and MLP by converting sparse code into convenient vectors for MLP input. This original association assures in this way the classification of any sparse signals. Experimental results obtained by the whole process on trajectories data and comparisons to other methods show that this approach is efficient for signals classification. |
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| 1 : | Laboratoire Information, Modèles, Apprentissage [Gif-sur-Yvette] |
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CEA : LIST |
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| 2 : | Grenoble Images Parole Signal Automatique (GIPSA-lab) |
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CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
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| 3 : | EURECOM |
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EURECOM |
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| 4 : | Laboratoire Traitement et Communication de l'Information [Paris] (LTCI) |
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Télécom ParisTech – CNRS : UMR5141 |
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| SIGMAPHY |
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| Domaine | : | Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| Sparse coding – classification – multilayer perceptron – trajectories data |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00730423, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00730423 | |
| oai:hal.archives-ouvertes.fr:hal-00730423 | |
| Contributeur : Jerome Mars | |
| Soumis le : Lundi 10 Septembre 2012, 15:44:42 | |
| Dernière modification le : Mercredi 26 Septembre 2012, 11:42:16 | |
