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Communication Dans Un Congrès Année : 2022

Create Efficient and Complex Reservoir Computing Architectures with ReservoirPy

Nathan Trouvain
Nicolas P. Rougier
Xavier Hinaut

Résumé

Reservoir Computing (RC) is a type of recurrent neural network (RNNs) where learning is restricted to the output weights. RCs are often considered as temporal Support Vector Machines (SVMs) for the way they project inputs onto dynamic non-linear high-dimensional representations. This paradigm, mainly represented by Echo State Networks (ESNs), has been successfully applied on a wide variety of tasks, from time series forecasting to sequence generation. They offer de facto a fast, simple yet efficient way to train RNNs. We present in this paper a library that facilitates the creation of RC architectures, from simplest to most complex, based on the Python scientific stack (NumPy, Scipy). This library offers memory and time efficient implementations for both online and offline training paradigms, such as FORCE learning or parallel ridge regression. The flexibility of the API allows to quickly design ESNs including re-usable and customizable components. It enables to build models such as DeepESNs as well as other advanced architectures with complex connectivity between multiple reservoirs with feedback loops. Extensive documentation and tutorials both for newcomers and experts are provided through GitHub and ReadTheDocs websites. The paper introduces the main concepts supporting the library, illustrated with code examples covering popular RC techniques from the literature. We argue that such flexible dedicated library will ease the creation of more advanced architectures while guarantying their correct implementation and reproducibility across the RC community.
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Dates et versions

hal-03761440 , version 1 (26-08-2022)

Identifiants

  • HAL Id : hal-03761440 , version 1

Citer

Nathan Trouvain, Nicolas P. Rougier, Xavier Hinaut. Create Efficient and Complex Reservoir Computing Architectures with ReservoirPy. SAB 2022 - FROM ANIMALS TO ANIMATS 16: The 16th International Conference on the Simulation of Adaptive Behavior, Sep 2022, Cergy-Pontoise / Hybrid, France. ⟨hal-03761440⟩

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