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The generalized diffusion equation with a delay has inherent complex nature because its analytical solutions are hard to obtain. Therefore, one has to seek numerical methods, especially the high-order accurate ones, for their approximate solutions. In this paper, we have established the results of the numerical asymptotic stability of the compact θ-method for the generalized delay diffusion equation...
In current DNN/HMM hybrid systems, the DNN models are trained by the 1-of-V targets which are obtained by the Viterbi-based forced-alignment. The states are viewed as unrelated and isolated. In fact, some phonemes are acoustically similar. Especially for Chinese, as a tonal language, its number of similar pairs is quadrupled. To add the similarity information between states into the model training,...
This paper presents our recent work on the development of a real world voice retrieval system, which automatically updates language models for a specific domain with the latest web data. Two of the main difficult issues in handling this system are tackled in this paper. First, when people use voice retrieval systems, new created "hot words" are inputted as the keywords. In order to ensure...
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