A simple technique for improving multi-class classification with neural networks
Résumé
We present a novel method to perform multi-class pattern classification with neural networks and test it on a challenging 3D hand gesture recognition problem. Our method consists of a standard one-against-all (OAA) classification, followed by another network layer classifying the resulting class scores, possibly augmented by the original raw input vector. This allows the network to disambiguate hard-to-separate classes as the distribution of class scores carries considerable information as well, and is in fact often used for assessing the confidence of a decision. We show that by this approach we are able to significantly boost our results , overall as well as for particular difficult cases, on the hard 10-class gesture classification task.
Domaines
Apprentissage [cs.LG]Origine | Fichiers produits par l'(les) auteur(s) |
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