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Conference papers
STOCHASTIC ADAPTIVE NEURAL ARCHITECTURE SEARCH FOR KEYWORD SPOTTING
Abstract : The problem of keyword spotting i.e. identifying keywords in a real-time audio stream is mainly solved by applying a neural network over successive sliding windows. Due to the difficulty of the task, baseline models are usually large, resulting in a high computational cost and energy consumption level. We propose a new method called SANAS (Stochastic Adaptive Neural Architecture Search) which is able to adapt the architecture of the neural network on-the-fly at inference time such that small architectures will be used when the stream is easy to process (silence, low noise, ...) and bigger networks will be used when the task becomes more difficult. We show that this adaptive model can be learned end-to-end by optimizing a trade-off between the prediction performance and the average computational cost per unit of time. Experiments on the Speech Commands dataset [1] show that this approach leads to a high recognition level while being much faster (and/or energy saving) than classical approaches where the network architecture is static.
Cited literature [21 references]
https://hal.sorbonne-universite.fr/hal-02063698
Contributor : Olivier Schwander <>
Submitted on : Monday, March 11, 2019 - 1:49:44 PM
Last modification on : Friday, July 5, 2019 - 3:26:03 PM
Document(s) archivé(s) le : Wednesday, June 12, 2019 - 2:49:42 PM
Contributor : Olivier Schwander <>
Submitted on : Monday, March 11, 2019 - 1:49:44 PM
Last modification on : Friday, July 5, 2019 - 3:26:03 PM
Document(s) archivé(s) le : Wednesday, June 12, 2019 - 2:49:42 PM
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ICASSP_2019.pdf
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