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Query-by-Example Spoken Term Detection(QbE-STD) has been a hot research topic in speech recognition field. While template representation is the key composition part of QbE-STD, many researchers have been committed to developing effective template representations to obtain the better performance. Gaussian posteriorgram has been widely used due to that the GMM model which generates the Gaussian posteriorgram...
In this paper, we propose to use acoustic feature based submodular function optimization to select a subset of untranscribed data for manual transcription, and retrain the initial acoustic model with the additional transcribed data. The acoustic features are obtained from an unsupervised Gaussian mixture model. We also integrate the acoustic features with the phonetic features, which are obtained...
A new front-end feature extraction scheme creating so called LDA-projected magnitude spectrum (L-PMS) features is proposed for speaker recognition systems. Mainstream feature extraction schemes usually use filter-bank or linear predictive coding (LPC) in the process of converting high-dimensional speech data into low-dimensional feature vectors, which may lose important discriminative information...
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