Title
Bidirectional Quaternion Long Short-Term Memory Recurrent Neural Networks For Speech Recognition
Abstract
Recurrent neural networks (RNN) are at the core of modern automatic speech recognition (ASR) systems. In particular, long short-term memory (LSTM) recurrent neural networks have achieved state-of-the-art results in many speech recognition tasks, due to their efficient representation of long and short term dependencies in sequences of inter-dependent features. Nonetheless, internal dependencies within the element composing multidimensional features are weakly considered by traditional real-valued representations. We propose a novel quaternion long short-term memory (QLTM) recurrent neural network that takes into account both the external relations between the features composing a sequence, and these internal latent structural dependencies with the quaternion algebra. QLSTMs are compared to LSTMs during a memory copy-task and a realistic application of speech recognition on the Wall Street Journal (WSJ) dataset. QLSTM reaches better performances during the two experiments with up to 2:8 times less learning parameters, leading to a more expressive representation of the information.
Year
DOI
Venue
2019
10.1109/ICASSP.2019.8683583
2019 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP)
Keywords
Field
DocType
Quaternion long-short term memory, recurrent neural networks, speech recognition
Pattern recognition,Computer science,Quaternion,Long short term memory,Recurrent neural network,Quaternion algebra,Speech recognition,Artificial intelligence
Conference
ISSN
Citations 
PageRank 
1520-6149
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Titouan Parcollet1169.23
Mohamed Morchid28422.79
georges linar es313629.55
Renato De Mori4960161.75