Title
Learning linearly separable features for speech recognition using convolutional neural networks.
Abstract
Automatic speech recognition systems usually rely on spectral-based features, such as MFCC of PLP. These features are extracted based on prior knowledge such as, speech perception or/and speech production. Recently, convolutional neural networks have been shown to be able to estimate phoneme conditional probabilities in a completely data-driven manner, i.e. using directly temporal raw speech signal as input. This system was shown to yield similar or better performance than HMM/ANN based system on phoneme recognition task and on large scale continuous speech recognition task, using less parameters. Motivated by these studies, we investigate the use of simple linear classifier in the CNN-based framework. Thus, the network learns linearly separable features from raw speech. We show that such system yields similar or better performance than MLP based system using cepstral-based features as input.
Year
Venue
Field
2014
international conference on learning representations
Mel-frequency cepstrum,Linear separability,Computer science,Convolutional neural network,Time delay neural network,Artificial intelligence,Speech production,Pattern recognition,Speech recognition,Speech perception,Hidden Markov model,Linear classifier,Machine learning
DocType
Volume
Citations 
Journal
abs/1412.7110
0
PageRank 
References 
Authors
0.34
8
3
Name
Order
Citations
PageRank
Dimitri Palaz1474.93
Mathew Magimai-Doss251654.76
Ronan Collobert34002308.61