Recurrent Kernel Networks

Dexiong Chen 1 Laurent Jacob 2 Julien Mairal 1
1 Thoth - Apprentissage de modèles à partir de données massives
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann
2 Statistique en grande dimension pour la génomique
PEGASE - Département PEGASE [LBBE]
Abstract : Substring kernels are classical tools for representing biological sequences or text. However, when large amounts of annotated data is available, models that allow end-to-end training such as neural networks are often prefered. Links between recurrent neural networks (RNNs) and substring kernels have recently been drawn, by formally showing that RNNs with specific activation functions were points in a reproducing kernel Hilbert space (RKHS). In this paper, we revisit this link by generalizing convolutional kernel networks-originally related to a relaxation of the mismatch kernel to model gaps in sequences. It results in a new type of recurrent neural network which can be trained end-to-end with backpropagation, or without supervision by using kernel approximation techniques. We experimentally show that our approach is well suited to biological sequences, where it outperforms existing methods for protein classification tasks.
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Submitted on : Friday, June 7, 2019 - 5:12:03 PM
Last modification on : Friday, July 5, 2019 - 10:14:00 AM


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  • HAL Id : hal-02151135, version 1
  • ARXIV : 1906.03200



Dexiong Chen, Laurent Jacob, Julien Mairal. Recurrent Kernel Networks. 2019. ⟨hal-02151135⟩



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