4. (a) Consider an Elman-type recurrent neural network (RNN) that receives 2- dimensional input patterns x...
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4. (a) Consider an Elman-type recurrent neural network (RNN) that receives 2- dimensional input patterns x E R² and has one hidden layer. The RNN has five neurons in the hidden layer and two neurons in the output layer. We denote the weight matrices connecting the input to the hidden layer as U, the weight matrices connecting the previous hidden state to the next hidden state as W, and the weight matrices connecting the hidden output to the output layer as V. (i) What is the dimension of U, W and V, respectively? (ii) (iii) (3 marks) If we change this RNN to a Jordan-type RNN, and keep the same number of input dimensions, hidden and output neurons, what is the dimension of the top-down recurrence weight matrix W? (1 mark) Explain the reason of observing exploding gradients in RNN training. Describe a way to address this problem. (5 marks) 4. (a) Consider an Elman-type recurrent neural network (RNN) that receives 2- dimensional input patterns x E R² and has one hidden layer. The RNN has five neurons in the hidden layer and two neurons in the output layer. We denote the weight matrices connecting the input to the hidden layer as U, the weight matrices connecting the previous hidden state to the next hidden state as W, and the weight matrices connecting the hidden output to the output layer as V. (i) What is the dimension of U, W and V, respectively? (ii) (iii) (3 marks) If we change this RNN to a Jordan-type RNN, and keep the same number of input dimensions, hidden and output neurons, what is the dimension of the top-down recurrence weight matrix W? (1 mark) Explain the reason of observing exploding gradients in RNN training. Describe a way to address this problem. (5 marks)
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The dimensions of U W and V in an Elmantype recurrent neural network RNN are as follows U The input ... View the full answer
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Statistics The Exploration & Analysis of Data
ISBN: 978-1133164135
7th edition
Authors: Roxy Peck, Jay L. Devore
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