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Model restructuring for client and server based automatic speech recognition
Model restructuring for client and server based automatic speech recognition
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机译:基于客户端和服务器的自动语音识别的模型重构
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摘要
Access is obtained to a large reference acoustic model for automatic speech recognition. The large reference acoustic model has L states modeled by L mixture models, and the large reference acoustic model has N components. A desired number of components Nc, less than N, to be used in a restructured acoustic model derived from the reference acoustic model, is identified. The desired number of components Nc is selected based on a computing environment in which the restructured acoustic model is to be deployed. The restructured acoustic model also has L states. For each given one of the L mixture models in the reference acoustic model, a merge sequence is built which records, for a given cost function, sequential mergers of pairs of the components associated with the given one of the mixture models. A portion of the Nc components is assigned to each of the L states in the restructured acoustic model. The restructured acoustic model is built by, for each given one of the L states in the restructured acoustic model, applying the merge sequence to a corresponding one of the L mixture models in the reference acoustic model until the portion of the Nc components assigned to the given one of the L states is achieved.
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机译:获得用于自动语音识别的大型参考声学模型。大参考声学模型具有由L个混合模型建模的L个状态,大参考声学模型具有N个分量。确定了要在从参考声学模型派生的重构声学模型中使用的,小于N的所需数量的分量N c Sup>。基于要在其中部署重构声学模型的计算环境选择所需数量的组件N c Sup>。重组声学模型也具有L个状态。对于参考声学模型中的L个混合模型中的每个给定模型,建立一个合并序列,该合并序列针对给定的成本函数记录与给定的一个混合模型相关的成对部件的顺序合并。 N c Sup>分量的一部分被分配给重构声学模型中的L个状态中的每个状态。通过针对重构声学模型中的L个状态中的每个给定的L个状态,将合并序列应用于参考声学模型中的L个混合模型中的对应一个,来构建重构声学模型。分配给L个状态之一的 Sup>组件已实现。
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