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基于HMM/MLFNN混合结构的说话人辨认研究 被引量:5
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作者 包威权 陈珂 迟惠生 《北京大学学报(自然科学版)》 CAS CSCD 北大核心 1997年第3期359-367,共9页
将隐马尔可夫模型(HMM)与人工神经网络(ANN)相结合,既利用HMM能够较好地描述动态时间序列又利用ANN静态分类能力强的特点,应用于说话人辨认。本文将一个多层前馈神经网络(MLFNN)与HMM相结合构成混合模型,... 将隐马尔可夫模型(HMM)与人工神经网络(ANN)相结合,既利用HMM能够较好地描述动态时间序列又利用ANN静态分类能力强的特点,应用于说话人辨认。本文将一个多层前馈神经网络(MLFNN)与HMM相结合构成混合模型,与以往的方法不同,具有所需训练数据量小,推广性能良好的特点。对20个说话人辨认的实验结果表明。 展开更多
关键词 说话人辨认 隐马尔可夫模型 MLFNN 声音识别
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Speed up Training of the Recurrent Neural Network Based on Constrained optimization Techniques
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作者 陈珂 包威权 迟惠生 《Journal of Computer Science & Technology》 SCIE EI CSCD 1996年第6期581-588,共8页
In this paper, the constrained optimization technique for a substantial prob-lem is explored, that is accelerating training the globally recurrent neural net-work. Unlike most of the previous methods in feedforward ne... In this paper, the constrained optimization technique for a substantial prob-lem is explored, that is accelerating training the globally recurrent neural net-work. Unlike most of the previous methods in feedforward neuxal networks, the authors adopt the constrained optimization technique to improve the gradiellt-based algorithm of the globally recuxrent neural network for the adaptive learn-ing rate during training. Using the recurrent network with the improved algo-rithm, some experiments in two real-world problems, namely filtering additive noises in acoustic data and classification of temporal signals for speaker identifi-cation, have been performed. The experimental results show that the recurrent neural network with the improved learning algorithm yields significantly faster training and achieves the satisfactory performance. 展开更多
关键词 Recurrent neural network adaptive learning rate gradientbased algorithm
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