如何解决如何在给定程序中绘制TensorFlow版本v1.x中相对于历元的训练准确性,训练损失
我是Tensorflow编程的新手。我想在以下程序中绘制训练精度,训练损失,验证准确性和验证损失。我在google colab中使用tensorflow 1.x版。代码段如下。
# hyperparameters
n_neurons = 128
learning_rate = 0.001
batch_size = 128
n_epochs = 5
# parameters
n_steps = 32
n_inputs = 32
n_outputs = 10
# build a rnn model
X = tf.placeholder(tf.float32,[None,n_steps,n_inputs])
y = tf.placeholder(tf.int32,[None])
cell = tf.nn.rnn_cell.BasicRNNCell(num_units=n_neurons)
output,state = tf.nn.dynamic_rnn(cell,X,dtype=tf.float32)
logits = tf.layers.dense(state,n_outputs)
cross_entropy = tf.nn.sparse_softmax_cross_entropy_with_logits(labels=y,logits=logits)
loss = tf.reduce_mean(cross_entropy)
optimizer = tf.train.AdamOptimizer(learning_rate=learning_rate).minimize(loss)
prediction = tf.nn.in_top_k(logits,y,1)
accuracy = tf.reduce_mean(tf.cast(prediction,tf.float32))
# input data
x_test = x_test.reshape([-1,n_inputs])
# initialize the variables
init = tf.global_variables_initializer()
# train the model
with tf.Session() as sess: sess.run(init)
n_batches = 100
for epoch in range(n_epochs):
for batch in range(n_batches):
sess.run(optimizer,feed_dict={X: x_train,y: y_train})
loss_train,acc_train = sess.run([loss,accuracy],feed_dict={X:
x_train,y: y_train})
print('Epoch: {},Train Loss: {:.3f},Train Acc:
{:.3f}'.format(epoch + 1,loss_train,acc_train))
loss_test,acc_test = sess.run([loss,feed_dict={X:
x_test,y: y_test})
print('Test Loss: {:.3f},Test Acc: {:.3f}'.format(loss_test,acc_test))
解决方法
如Viviann所评论的那样,在编写代码时请使用```,因为它很难理解。 但是以下代码可能会有所帮助:
*附带说明:这是使用喀拉拉石
private void screenSave(byte[] temp,String path){
SVG svg = SVGParser.getSVGFromString(new String(temp));
PictureDrawable pictureDrawable = svg.createPictureDrawable();
Bitmap bitmap = pictureDrawable2Bitmap(pictureDrawable);
try (FileOutputStream out = new FileOutputStream(path) {
bitmap.compress(Bitmap.CompressFormat.PNG,100,out);
} catch (IOException e) {
e.printStackTrace();
}
}
private static Bitmap pictureDrawable2Bitmap(PictureDrawable pd) {
Bitmap bitmap = Bitmap.createBitmap(pd.getIntrinsicWidth(),pd.getIntrinsicHeight(),Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawPicture(pd.getPicture());
return bitmap;
}
在这里您从训练和验证中分配值(准确性和损失性)。我相信您已经完成了那部分。
以下部分用于绘制这些值
acc = history.history['acc']
val_acc = history.history['val_acc']
loss = history.history['loss']
val_loss = history.history['val_loss']
它应该给你这样的东西
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