Hi, I tried to predict the mobile device screen coordinate, but the result were not well.
The input data [300*16] are 300 time points with 16 ACTION_DOWN/ACTION_UP/4 sensors coordinates, the output data [1*2] are correct coordinate (x, y).
The Up Distance value is the distance between correct coordinate and user touch point, and the Predict Distance value is the distance between correct coordinate and predict output. The target is to decrease Predict Distance as possible.
I tried to change optimizer, loss function, model construct etc. but I couldn’t find out where the problem is. Can anyone help me? Thanks so much.
The following are parameters, model and results:
BATCH_SIZE = 128
LEARNING_RATE = 0.01
DROPOUT = 0.3

optimizer = torch.optim.SGD(model.parameters(), lr=LEARNING_RATE)
criterion = torch.nn.SmoothL1Loss()

class CustomModel(torch.nn.Module):
    def __init__(self):
        super(CustomModel, self).__init__()
        self.conv1_1 = torch.nn.Conv1d(
            in_channels=FEATURE_CHANNEL, out_channels=FEATURE_CHANNEL, kernel_size=3, stride=2)
        self.pool_1 = torch.nn.MaxPool1d(kernel_size=3, stride=2)
        
        self.conv1_2 = torch.nn.Conv1d(
            in_channels=FEATURE_CHANNEL, out_channels=FEATURE_CHANNEL, kernel_size=3, stride=2)
        self.pool_2 = torch.nn.MaxPool1d(kernel_size=3, stride=2)

        self.dropout = torch.nn.Dropout(DROPOUT)
        
        self.conv1_3 = torch.nn.Conv1d(
            in_channels=FEATURE_CHANNEL, out_channels=FEATURE_CHANNEL, kernel_size=3, stride=2)
        self.pool_3 = torch.nn.MaxPool1d(kernel_size=3, stride=2)
        
        self.conv1_4 = torch.nn.Conv1d(
            in_channels=FEATURE_CHANNEL, out_channels=FEATURE_CHANNEL, kernel_size=2, stride=2)
        
        self.fc1 = torch.nn.Linear(16, 2)
        
    def forward(self, x):
        x = self.conv1_1(x)
        x = torch.nn.functional.relu(x)
        x = self.pool_1(x)
        
        x = self.conv1_2(x)
        x = torch.nn.functional.relu(x)
        x = self.pool_2(x)
        
        x = self.dropout(x)
        
        x = self.conv1_3(x)
        x = torch.nn.functional.relu(x)
        x = self.pool_3(x)
        
        x = self.conv1_4(x)
        x = torch.nn.functional.relu(x)
        
        x = x.view(-1, 1*16)

        x = self.fc1(x)

        return x


圖片2.jpg1920×910 197 KB