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Bidirectional LSTM Networks for Improved Phoneme Classification and Recognition

Lecture notes in computer sciencePublished 1 January 2005
Alex Graves, Santiago Fernández, Jürgen Schmidhuber
Citations848
SJR quartileQ2
SJR score0.35
SNIP0.55

TL;DR

In this paper, two experiments on the TIMIT speech corpus with bidirectional and unidirectional Long Short Term Memory networks are carried out and it is found that a hybrid BLSTM-HMM system improves on an equivalent traditional HMM system.

Abstract

In this paper, we carry out two experiments on the TIMIT speech corpus with bidirectional and unidirectional Long Short Term Memory (LSTM) networks. In the first experiment (framewise phoneme classification) we find that bidirectional LSTM outperforms both unidirectional LSTM and conventional Recurrent Neural Networks (RNNs). In the second (phoneme recognition) we find that a hybrid BLSTM-HMM system improves on an equivalent traditional HMM system, as well as unidirectional LSTM-HMM.

Keywords

Computer Science