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METHOD AND APPARATUS FOR SPEECH RECOGNITION USING OPTIMISED PARTIAL PROBABILITY MIXTURE TYING

阅读:520发布:2021-03-06

专利汇可以提供METHOD AND APPARATUS FOR SPEECH RECOGNITION USING OPTIMISED PARTIAL PROBABILITY MIXTURE TYING专利检索,专利查询,专利分析的服务。并且In accordance with the invention, a speech recognizer is provided which uses a computationally-feasible method for constructing a set of Hidden Markov Models (HMMs) for speech recognition that utilize a partial and optimal degree of mixture tying. With partially-tied HMMs, improved recognition accuracy of a large vocabulary word corpus as compared to systems that use fully-tied HMMs is achieved with less computational overhead than with a fully untied system. The computationally-feasible technique comprises the steps of determining a cluster of HMM states that share Gaussian components which are close together, developing a subset codebook for those clusters, and recalculating the Gaussians in the codebook to best estimate the clustered states.,下面是METHOD AND APPARATUS FOR SPEECH RECOGNITION USING OPTIMISED PARTIAL PROBABILITY MIXTURE TYING专利的具体信息内容。

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