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Evaluating the accuracy of HMM-based and SVM-based spotters in detecting keywords and recognizing the true place of keyword occurrence shows that the HMM-based spotter detects the place of occurrence more precisely than the SVM-based spotter. On the other hand, the SVM-based spotter performs much better in detecting
In this paper, a new method of Chinese prosodic word tagging is presented. This method consists of a rule-based algorithm named ??keyword anchor?? and a statistical algorithm based on hidden Markov model (HMM). For keyword anchor algorithm, an anchor of the prosodic word is defined to help the system to find the whole
Word posterior probability has been widely used as the confidence estimation of automatic speech recognition (ASR) systems and has been proved to be quite effective in related applications such as keyword search. However, word posterior probability tends to overestimate the true probability of a hypothesis, as it is
This paper presents an audio keywords detection method for highlight retrieval in basketball video. The keywords contain shoes squeaking sound, speech, cheer, long whistle and short whistle, which correspond to basketball game events. After feature analysis, the Simple Excellent Feature Combination based on Pearson
This work proposes a voice-activity home care system which can construct a life log associated with voices at home. Accordingly, the techniques of sound-pressure-level calculation, abnormal sound detection, noise reduction, text-independent speaker recognition and keyword spotting are developed. In abnormal sound
This paper presents a novel method for deriving patterns for classification of speech sounds. In contrast to conventional methods that attempt to capture time-frequency patterns as represented by spectral envelopes or peaks, our method captures patterns of high-energy tracks, or seams, of maximum “whiteness” across frequency in spectrograms. Our hypothesis is that these seams could potentially carry...
Automatic image annotation is the process of assigning relevant keywords to the images. It is considered to be potential research area in current scenario. Annotation to an image can be defined as the information which could describe an image by considering three ways i.e. when these images were taken, what are the
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