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# scale units | |
X_max, _ = torch.max(X, 0) | |
xPredicted_max, _ = torch.max(xPredicted, 0) | |
X = torch.div(X, X_max) | |
xPredicted = torch.div(xPredicted, xPredicted_max) | |
y = y / 100 # max test score is 100 |
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class Neural_Network(nn.Module): | |
def __init__(self, ): | |
super(Neural_Network, self).__init__() | |
# parameters | |
# TODO: parameters can be parameterized instead of declaring them here | |
self.inputSize = 2 | |
self.outputSize = 1 | |
self.hiddenSize = 3 | |
# weights |
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NN = Neural_Network() | |
for i in range(1000): # trains the NN 1,000 times | |
print ("#" + str(i) + " Loss: " + str(torch.mean((y - NN(X))**2).detach().item())) # mean sum squared loss | |
NN.train(X, y) | |
NN.saveWeights(NN) | |
NN.predict() |
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import torch | |
import torch.nn as nn | |
import torch.nn.functional as F | |
import os | |
import numpy as np |
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class SingleRNN(nn.Module): | |
def __init__(self, n_inputs, n_neurons): | |
super(SingleRNN, self).__init__() | |
self.Wx = torch.randn(n_inputs, n_neurons) # 4 X 1 | |
self.Wy = torch.randn(n_neurons, n_neurons) # 1 X 1 | |
self.b = torch.zeros(1, n_neurons) # 1 X 4 | |
def forward(self, X0, X1): |
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N_INPUT = 4 | |
N_NEURONS = 1 | |
X0_batch = torch.tensor([[0,1,2,0], [3,4,5,0], | |
[6,7,8,0], [9,0,1,0]], | |
dtype = torch.float) #t=0 => 4 X 4 | |
X1_batch = torch.tensor([[9,8,7,0], [0,0,0,0], | |
[6,5,4,0], [3,2,1,0]], | |
dtype = torch.float) #t=1 => 4 X 4 |
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print(Y0_val) | |
print(Y1_val) | |
### output | |
''' | |
tensor([[-0.9963, -0.9877, 0.9999, -0.1916, 0.3522], | |
[-0.9979, -1.0000, 1.0000, 0.7448, -0.8681], | |
[-0.9988, -1.0000, 1.0000, 0.9714, -0.9952], | |
[ 0.9948, -1.0000, -1.0000, 0.9981, -1.0000]]) | |
tensor([[-0.7492, -1.0000, 1.0000, 0.9997, -0.9985], |
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class BasicRNN(nn.Module): | |
def __init__(self, n_inputs, n_neurons): | |
super(BasicRNN, self).__init__() | |
self.Wx = torch.randn(n_inputs, n_neurons) # n_inputs X n_neurons | |
self.Wy = torch.randn(n_neurons, n_neurons) # n_neurons X n_neurons | |
self.b = torch.zeros(1, n_neurons) # 1 X n_neurons | |
def forward(self, X0, X1): |
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N_INPUT = 3 # number of features in input | |
N_NEURONS = 5 # number of units in layer | |
X0_batch = torch.tensor([[0,1,2], [3,4,5], | |
[6,7,8], [9,0,1]], | |
dtype = torch.float) #t=0 => 4 X 3 | |
X1_batch = torch.tensor([[9,8,7], [0,0,0], | |
[6,5,4], [3,2,1]], | |
dtype = torch.float) #t=1 => 4 X 3 |
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print(Y0_val) | |
print(Y1_val) | |
### output | |
''' | |
tensor([[-0.9963, -0.9877, 0.9999, -0.1916, 0.3522], | |
[-0.9979, -1.0000, 1.0000, 0.7448, -0.8681], | |
[-0.9988, -1.0000, 1.0000, 0.9714, -0.9952], | |
[ 0.9948, -1.0000, -1.0000, 0.9981, -1.0000]]) | |
tensor([[-0.7492, -1.0000, 1.0000, 0.9997, -0.9985], |