Reliability measure improvement of Phoneme character extract In Out-of-Vocabulary Rejection Algorithm
Sang Yeob Oh · Journal of Digital Convergence · 2012
Abstract In the communication mobile terminal, Vocabulary recognition system has low recognition rates, because this problems are due to phoneme feature extract from inaccurate vocabulary. Therefore they are not recognize the phoneme and similar phoneme misunderstanding error. To solve this problem, this paper propose the system model, which based on the two step process. First, input phoneme is represent by number which measure the distance of phonemes through phoneme likelihood process. next step is recognize the result through the reliability measure. By this process, we minimize the phoneme misunderstanding error caused by inaccurate vocabulary and perform error correction rate for error provrd vocabulary using phoneme likelihood and reliability. System performance comparison as a result of recognition improve represent 2.7% by method using error pattern learning and semantic pattern. Key Words : Out-of-Vocabulary rejection, Reliability measure, Phoneme Likelihood ※ 이 논문은 2012년도 가천대학교 교내연구비 지원에 의한 결과임 .