Learning Curve of Speech Recognition

Learning speech rate in speech recognition

A significant performance reduction is often observed in speech recognition when the rate of speech (ROS) is too low or too high. Most of present approaches to addressing the ROS variation focus on the change of speech signals in dynamic properties caused by ROS, and accordingly modify the dynamic model, e.g., the transition probabilities of the hidden Markov model (HMM). However, an abnormal R...

Sequence Learning and Speech Recognition

This paper describes application possibilities for statistical methods and particulary hidden Markov models in the domain of sequence learning after treating the required basics. Especially the task of natural language processing is treated by elaborating on speech recognition and speech translation. Furthermore a network intrusion detection system to detect complex and coordinated Internet att...

Discriminative Learning in Speech Recognition

Improving the performance of MFCC for Persian robust speech recognition

The Mel Frequency cepstral coefficients are the most widely used feature in speech recognition but they are very sensitive to noise. In this paper to achieve a satisfactorily performance in Automatic Speech Recognition (ASR) applications we introduce a noise robust new set of MFCC vector estimated through following steps. First, spectral mean normalization is a pre-processing which applies to t...

Ensemble deep learning for speech recognition

Deep learning systems have dramatically improved the accuracy of speech recognition, and various deep architectures and learning methods have been developed with distinct strengths and weaknesses in recent years. How can ensemble learning be applied to these varying deep learning systems to achieve greater recognition accuracy is the focus of this paper. We develop and report linear and log-lin...