How to write masked MSE loss in Keras?












2















I was trying to write masked MSE loss:



def mae_loss_masked(mask):
def loss_fn(y_true, y_pred):
abs_vec = tf.multiply(tf.abs(y_pred-y_true), mask)
loss = tf.reduce_mean(abs_vec)
return loss
return loss_fn


My model:



def MobileNet_v1():
# MobileNet with dense layer on top

# Keras 2.1.6
mobilenet = MobileNet(input_shape=(config.IMAGE_H, config.IMAGE_W, config.N_CHANNELS),
alpha=1.0,
depth_multiplier=1,
include_top=False,
weights='imagenet'
)

x = Flatten()(mobilenet.output)
x = Dropout(0.5)(x)
x = Dense(config.N_LANDMARKS * 2, activation='linear')(x)

# -------------------------------------------------------

model = Model(inputs=mobilenet.input, outputs=x)
optimizer = Adadelta()
model.compile(optimizer=optimizer, loss=mae_loss_masked)

model.summary()
import sys
sys.exit()

return model


But it give an error:
TypeError: mae_loss_masked() takes 1 positional argument but 2 were given



Also a question how batch generator output should look like in this case.










share|improve this question

























  • Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

    – Dinari
    Nov 19 '18 at 7:31
















2















I was trying to write masked MSE loss:



def mae_loss_masked(mask):
def loss_fn(y_true, y_pred):
abs_vec = tf.multiply(tf.abs(y_pred-y_true), mask)
loss = tf.reduce_mean(abs_vec)
return loss
return loss_fn


My model:



def MobileNet_v1():
# MobileNet with dense layer on top

# Keras 2.1.6
mobilenet = MobileNet(input_shape=(config.IMAGE_H, config.IMAGE_W, config.N_CHANNELS),
alpha=1.0,
depth_multiplier=1,
include_top=False,
weights='imagenet'
)

x = Flatten()(mobilenet.output)
x = Dropout(0.5)(x)
x = Dense(config.N_LANDMARKS * 2, activation='linear')(x)

# -------------------------------------------------------

model = Model(inputs=mobilenet.input, outputs=x)
optimizer = Adadelta()
model.compile(optimizer=optimizer, loss=mae_loss_masked)

model.summary()
import sys
sys.exit()

return model


But it give an error:
TypeError: mae_loss_masked() takes 1 positional argument but 2 were given



Also a question how batch generator output should look like in this case.










share|improve this question

























  • Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

    – Dinari
    Nov 19 '18 at 7:31














2












2








2








I was trying to write masked MSE loss:



def mae_loss_masked(mask):
def loss_fn(y_true, y_pred):
abs_vec = tf.multiply(tf.abs(y_pred-y_true), mask)
loss = tf.reduce_mean(abs_vec)
return loss
return loss_fn


My model:



def MobileNet_v1():
# MobileNet with dense layer on top

# Keras 2.1.6
mobilenet = MobileNet(input_shape=(config.IMAGE_H, config.IMAGE_W, config.N_CHANNELS),
alpha=1.0,
depth_multiplier=1,
include_top=False,
weights='imagenet'
)

x = Flatten()(mobilenet.output)
x = Dropout(0.5)(x)
x = Dense(config.N_LANDMARKS * 2, activation='linear')(x)

# -------------------------------------------------------

model = Model(inputs=mobilenet.input, outputs=x)
optimizer = Adadelta()
model.compile(optimizer=optimizer, loss=mae_loss_masked)

model.summary()
import sys
sys.exit()

return model


But it give an error:
TypeError: mae_loss_masked() takes 1 positional argument but 2 were given



Also a question how batch generator output should look like in this case.










share|improve this question
















I was trying to write masked MSE loss:



def mae_loss_masked(mask):
def loss_fn(y_true, y_pred):
abs_vec = tf.multiply(tf.abs(y_pred-y_true), mask)
loss = tf.reduce_mean(abs_vec)
return loss
return loss_fn


My model:



def MobileNet_v1():
# MobileNet with dense layer on top

# Keras 2.1.6
mobilenet = MobileNet(input_shape=(config.IMAGE_H, config.IMAGE_W, config.N_CHANNELS),
alpha=1.0,
depth_multiplier=1,
include_top=False,
weights='imagenet'
)

x = Flatten()(mobilenet.output)
x = Dropout(0.5)(x)
x = Dense(config.N_LANDMARKS * 2, activation='linear')(x)

# -------------------------------------------------------

model = Model(inputs=mobilenet.input, outputs=x)
optimizer = Adadelta()
model.compile(optimizer=optimizer, loss=mae_loss_masked)

model.summary()
import sys
sys.exit()

return model


But it give an error:
TypeError: mae_loss_masked() takes 1 positional argument but 2 were given



Also a question how batch generator output should look like in this case.







python tensorflow keras deep-learning mse






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '18 at 9:57









Milo Lu

1,60811327




1,60811327










asked Nov 18 '18 at 23:56









mrgloommrgloom

5,1631062131




5,1631062131













  • Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

    – Dinari
    Nov 19 '18 at 7:31



















  • Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

    – Dinari
    Nov 19 '18 at 7:31

















Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

– Dinari
Nov 19 '18 at 7:31





Your loss function takes 1 argument, while you are actually giving it 2. using mae_loss_masked(some_mask) will get you the actual loss function you need: stackoverflow.com/questions/46858016/… , batch should still be (x,y) , or optionally (x,y, weights)

– Dinari
Nov 19 '18 at 7:31












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53366667%2fhow-to-write-masked-mse-loss-in-keras%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53366667%2fhow-to-write-masked-mse-loss-in-keras%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

How to pass form data using jquery Ajax to insert data in database?

National Museum of Racing and Hall of Fame

Guess what letter conforming each word