Improving the efficiency of automatic speech recognition by feature transformation and dimensionality reduction.
Xuechuan WangDouglas D. O'ShaughnessyPublished in: INTERSPEECH (2003)
Keyphrases
- automatic speech recognition
- dimensionality reduction
- feature transformation
- speaker identification
- speech signal
- speech recognition
- noisy environments
- broadcast news
- feature extraction
- kernel pca
- hidden markov models
- feature space
- linear classifiers
- principal component analysis
- neural network
- high dimensionality
- feature vectors
- object recognition
- high dimensional data
- scale invariant
- data reduction
- multi modal
- low dimensional
- data points
- pattern recognition
- feature selection