Thank you for attention: A survey on attention-based artificial neural networks for automatic speech recognition

Abstract

Attention is a very popular and effective mechanism in artificial neural network-based sequence-to-sequence models. In this survey paper, a comprehensive review of the different attention models used in developing automatic speech recognition systems is provided. The paper focuses on how attention models have grown and changed for offline and streaming speech recognition in recurrent neural networks and Transformer-based systems.

Keywords

• Automatic speech recognition (ASR)
• Attention mechanism
• Recurrent neural network (RNN)
• Transformer
• Offline ASR
• Streaming ASR