Voice recognition method based on layered circulation neural network language model
A cyclic neural network and language model technology, applied in biological neural network models, speech recognition, neural learning methods, etc., can solve the problems of low recognition accuracy and large storage space.
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[0048] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0049] figure 1 It is a system flowchart of a speech recognition method based on a layered recurrent neural network language model of the present invention. Mainly including character-level language modeling using RNN, extending RNN structure with external clock and reset signal, character-level language modeling with hierarchical RNN and performing speech recognition.
[0050] Among them, the described extended RNN structure with external clock and reset signals, most types of RNNs can be generalized as
[0051] the s t =f(x t ,s t-1 ) (1)
[0052] the y t =g(s t ) (2)
[0053] where x t is the input, s t is the state, y t is the output at time step t, ...
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