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- W2401394187 abstract "본 논문에서는 Hidden Markov Model(HMM) - Universal Background Model(UBM)의 주 상태 정보 기반의 i-vector 추출 기술을 제안한다. Ergodic HMM이 UBM을 추정하는데 쓰였으며, 이를 통해 동일 화자 음성에도 다양하게 존재하는 특성을 HMM states로 분류할 수 있다. 제안한 방법을 이용하면 HMM의 state 개수에 따라 i-vector 들이 추출되는데, 주 상태 정보 방법을 통해 이들 중 하나를 선택한다. 제안한 방법을 검증하기 위해 National Institute of Standards and Technology(NIST) Speaker Recognition Evaluation(SRE) database를 이용하여 실험을 하였으며, Equal Error Rate(EER) 성능 수치에서 12 %의 성능 향상을 확인할 수 있었다. We present a speaker verification method by extracting i-vectors based on dominant state information of Hidden Markov Model (HMM) - Universal Background Model (UBM). Ergodic HMM is used for estimating UBM so that various characteristic of individual speaker can be effectively classified. Unlike Gaussian Mixture Model(GMM)-UBM based speaker verification system, the proposed system obtains i-vectors corresponding to each HMM state. Among them, the i-vector for feature is selected by extracting it from the specific state containing dominant state information. Relevant experiments are conducted for validating the proposed system performance using the National Institute of Standards and Technology (NIST) 2008 Speaker Recognition Evaluation (SRE) database. As a result, 12 % improvement is attained in terms of equal error rate." @default.
- W2401394187 created "2016-06-24" @default.
- W2401394187 creator A5049146400 @default.
- W2401394187 date "2015-01-01" @default.
- W2401394187 modified "2023-09-25" @default.
- W2401394187 title "Text Independent Speaker Verficiation Using Dominant State Information of HMM-UBM" @default.
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- W2401394187 doi "https://doi.org/10.7776/ask.2015.34.2.171" @default.
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