99 lines
2.5 KiB
Python
99 lines
2.5 KiB
Python
import random
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import torch
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import torch.optim as optim
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from torch import nn
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import torch.nn.functional as F
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from tqdm import tqdm
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def to_set(raw_list):
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out_set = []
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for line in tqdm(raw_list):
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line = line.replace('\n', '')
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raw_board, raw_label = line.split('|')[0], line.split('|')[1]
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# convert string label to tensor
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label = torch.zeros([1, 1], dtype=torch.long)
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if not (int(raw_label) is -1):
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label[0][0] = int(raw_label)
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else:
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label[0][0] = 9
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# convert board to tensor
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raw_board = raw_board.split(',')
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board = torch.zeros([1, 9])
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for n, block in enumerate(raw_board):
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if int(block) is -1:
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board[0][n] = 0
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elif int(block) is 0:
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board[0][n] = 0.5
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elif int(block) is 1:
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board[0][n] = 1
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out_set.append((board, label))
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return out_set
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def buildsets():
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with open('boards.bds', 'r') as infile:
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print('Loading file...')
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alllines = infile.readlines()
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print(len(alllines))
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random.shuffle(alllines)
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print('Generating testset...')
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testset = to_set(alllines[0:10000])
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print('Generating trainset...')
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trainset = to_set(alllines[10001:200000])
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return trainset, testset
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def testnet(net, testset):
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correct = 0
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total = 0
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with torch.no_grad():
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for X, label in testset:
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output = net(X)
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if torch.argmax(output) == label[0]:
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correct += 1
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total += 1
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print("Accuracy: ", round(correct / total, 3))
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class Net(torch.nn.Module):
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def __init__(self):
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super(Net, self).__init__()
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self.fc1 = nn.Linear(9, 9)
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self.fc2 = nn.Linear(9, 20)
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self.fc3 = nn.Linear(20, 50)
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self.fc4 = nn.Linear(50, 10)
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def forward(self, x):
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x = F.relu(self.fc1(x))
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x = F.relu(self.fc2(x))
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x = F.relu(self.fc3(x))
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x = self.fc4(x)
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return F.log_softmax(x, dim=1)
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net = torch.load('./nets/net_3.pt')
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optimizer = optim.Adam(net.parameters(), lr=0.001)
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trainset, testset = buildsets()
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for epoch in range(100):
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print('Epoch: ' + str(epoch))
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for X, label in tqdm(trainset):
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net.zero_grad()
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output = net(X)
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loss = F.nll_loss(output.view(1, 10), label[0])
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loss.backward()
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optimizer.step()
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print(loss)
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torch.save(net, './nets/net_' + str(epoch + 3) + '.pt')
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testnet(net, testset)
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