15. The method of claim 13 , wherein the deep neural network is a deep neural network comprising a convolutional layer, one or more long-short term memory (LSTM) layers, and multiple hidden layers.
17. The method of claim 15 , wherein the deep neural network is configured such that output of convolutional layer is input to at least one of the one or more LSTM layers, and output of the one or more LSTM layers is input to at least one of the multiple hidden layers.