Improving Sample Efficiency with Normalized RBF Kernels
Machine Learning
2020-08-03 v2 Machine Learning
Abstract
In deep learning models, learning more with less data is becoming more important. This paper explores how neural networks with normalized Radial Basis Function (RBF) kernels can be trained to achieve better sample efficiency. Moreover, we show how this kind of output layer can find embedding spaces where the classes are compact and well-separated. In order to achieve this, we propose a two-phase method to train those type of neural networks on classification tasks. Experiments on CIFAR-10 and CIFAR-100 show that networks with normalized kernels as output layer can achieve higher sample efficiency, high compactness and well-separability through the presented method in comparison to networks with SoftMax output layer.
Cite
@article{arxiv.2007.15397,
title = {Improving Sample Efficiency with Normalized RBF Kernels},
author = {Sebastian Pineda-Arango and David Obando-Paniagua and Alperen Dedeoglu and Philip Kurzendörfer and Friedemann Schestag and Randolf Scholz},
journal= {arXiv preprint arXiv:2007.15397},
year = {2020}
}