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Keyword Transformer: A Self-Attention Model For Keyword Spotting

Ways to adapt the Transformer architecture to keyword spotting and an introduction to the Keyword Transformer (KWT).

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The Transformer architecture has been successful across many domains, including natural language processing, computer vision and speech recognition. In keyword spotting, self-attention has primarily been used on top of convolutional or recurrent encoders. We investigate a range of ways to adapt the Transformer architecture to keyword spotting and introduce the Keyword Transformer (KWT), a fully self-attentional architecture that exceeds state-of-the-art performance across multiple tasks without any pre-training or additional data. Surprisingly, this simple architecture outperforms more complex models that mix convolutional, recurrent and attentive layers. KWT can be used as a drop-in replacement for these models, setting two new benchmark records on the Google Speech Commands dataset with 98.6% and 97.7% accuracy on the 12 and 35-command tasks respectively.

 

By Axel Berg1, 2 , Mark O’Connor1, Miguel Tairum Cruz1
1Arm ML Research Lab, UK
2Lund University, Sweden

 

Click here to read the paper. Click here to read the Arm Community introduction to the paper.



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