›› 2012, Vol. ›› Issue (03): 771-775.

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Dynamic match phone-lattice algorithm for second order keyword spotting

LIU Xiao-ming, FENG Xiao-rong, BAN Chao-fan   

  1. School of Telecommunication Engineering, Chongqing University, Chongqing 400030, China
  • Received:2011-01-11 Online:2012-05-01

Abstract: In order to solve the problem of estimation error of keyword weight, an improved model of second KWS is proposed. This model is based on the Context-Dependent Maximum a Posteriori Probability (CDMAP) method. Meanwhile, a dynamic match phone-lattice algorithm is introduced. This algorithm can efficiently solve the problem of inherent phone recognition error, which adversely affects the recognition accuracy. Experiment results show that the system performance is greatly enhanced by the dynamic match phone-lattice algorithm for both robustness and detection accuracy.

Key words: communication, keyword weighting, dynamic match phone-lattice, keyword detection

CLC Number: 

  • TN912.34
[1] 刘柏森,卢志茂,申丽然,等.基于希尔伯特-黄变换的低信噪比语音端点检测[J]. 吉林大学学报:工学版,2011,41(3):844-848. Liu Bai-sen, Lu Zhi-mao Shen Li-ran,et al. Speech endpoint detection based on Hilbert transformation[J]. Journal of Jilin University(Engineering and Technology Edition), 2011,41(3):844-848.
[2] Zhang G L,Sun H,Zheng F,et al. Robust speech recognition directed by extended template matching in dialogue system[C]//The 5th World Congress on Intelligent Control and Automation(WClCA), Hangzhou, China,2004:14-18.
[3] Leida E, Rose R. Utterance verification in continuous speech recognition: Decoding and training procedures[J]. IEEE Trans on Speech and Audio Processing, 2000,8(2):126-139.
[4] 张鹏远, 韩疆, 颜永红. 关键词检测系统中基于音素网格的置信度计算[J].电子与信息学报,2007,29(9):2063-2066. Zhang Peng-yuan, Han Jiang, Yan Yong-hong. Phoneme lattice based confidence measures in keyword spotting[J]. Journal of Electronics & Information Technology,2007,29(9):2063-2066.
[5] Zheng T F,Li J,Song Z J,et al. A two-step keyword spotting method based on context-dependent a posteriori probability[C]//2004 International Symposium on Chinese Spoken Language, 2004:281-284.
[6] Luqman M M, Delalandre M, Brouard T, et al. Employing fuzzy intervals and loop-based methodology for designing structural signature: an application to symbol recognition[C]//Lecture Notes in Computer Science,2009:22-31.
[7] Yu P, Chen K J, Ma C Y, et al. Vocabulary-independent indexing of spontaneous speech[J]. IEEE Transaction on Speech and Audio Processing, 2009,13(5):635-643.
[8] Abdou S, Scordilis M. Beam search pruning in speech recognition using a posterior probability-based confidence measure[J]. Speech Communication, 2004,42(3):409-428.
[9] Thambiratnam K, Sridharan S. Dynamic match phone-lattice searches for very fast and accurate unrestricted vocabulary keyword spotting[C]//IEEE International Conference on Acoustics, Speech, and Signal Processing,2005:465-468.
[10] Pinto J, Yegnanarayana B, Hermansky H, et al. Exploiting contextual information for improved phoneme recognition[C]//In Proc IEEE Conf Acoust, Speech, Signal Process, Las Vegas, NV,2008:4449-4452.
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