In Tensorflow, how to reconstruct tensors with the same label?





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I want to implement a function that reconstructs tensors with the same label. For example, we have a tensor feature BxNxC and its label BxN, B is batch size, C is the dimension of features, the range of label is K, the output I want is BxKxC. Features with the same label are combined together and outputs its mean feature with its specific label。



Anyone know how to implement this function?



I have implemented some but it seems ugly.



label_class = 12
for batch in range(part_pred.get_shape().as_list()[0]):
batch_label = part_label[batch]
batch_pred = mesh_point_net[batch,...]
for label in range(label_class):
condition = tf.equal(batch_label, label)
index = tf.where(condition)
pred = tf.reduce_mean(tf.gather(batch_pred, index), axis=0)
if label == 0:
batch_mean_pred = pred
else:
batch_mean_pred = tf.concat([batch_mean_pred, pred], axis=0)
if batch == 0:
mean_pred = tf.expand_dims(batch_mean_pred, axis=0)
else:
mean_pred = tf.concat([mean_pred,tf.expand_dims(batch_mean_pred, axis=0)], axis=0)









share|improve this question























  • Or which function can implement batch operations?

    – Xu Zhengtian
    Nov 17 '18 at 10:48


















0















I want to implement a function that reconstructs tensors with the same label. For example, we have a tensor feature BxNxC and its label BxN, B is batch size, C is the dimension of features, the range of label is K, the output I want is BxKxC. Features with the same label are combined together and outputs its mean feature with its specific label。



Anyone know how to implement this function?



I have implemented some but it seems ugly.



label_class = 12
for batch in range(part_pred.get_shape().as_list()[0]):
batch_label = part_label[batch]
batch_pred = mesh_point_net[batch,...]
for label in range(label_class):
condition = tf.equal(batch_label, label)
index = tf.where(condition)
pred = tf.reduce_mean(tf.gather(batch_pred, index), axis=0)
if label == 0:
batch_mean_pred = pred
else:
batch_mean_pred = tf.concat([batch_mean_pred, pred], axis=0)
if batch == 0:
mean_pred = tf.expand_dims(batch_mean_pred, axis=0)
else:
mean_pred = tf.concat([mean_pred,tf.expand_dims(batch_mean_pred, axis=0)], axis=0)









share|improve this question























  • Or which function can implement batch operations?

    – Xu Zhengtian
    Nov 17 '18 at 10:48














0












0








0








I want to implement a function that reconstructs tensors with the same label. For example, we have a tensor feature BxNxC and its label BxN, B is batch size, C is the dimension of features, the range of label is K, the output I want is BxKxC. Features with the same label are combined together and outputs its mean feature with its specific label。



Anyone know how to implement this function?



I have implemented some but it seems ugly.



label_class = 12
for batch in range(part_pred.get_shape().as_list()[0]):
batch_label = part_label[batch]
batch_pred = mesh_point_net[batch,...]
for label in range(label_class):
condition = tf.equal(batch_label, label)
index = tf.where(condition)
pred = tf.reduce_mean(tf.gather(batch_pred, index), axis=0)
if label == 0:
batch_mean_pred = pred
else:
batch_mean_pred = tf.concat([batch_mean_pred, pred], axis=0)
if batch == 0:
mean_pred = tf.expand_dims(batch_mean_pred, axis=0)
else:
mean_pred = tf.concat([mean_pred,tf.expand_dims(batch_mean_pred, axis=0)], axis=0)









share|improve this question














I want to implement a function that reconstructs tensors with the same label. For example, we have a tensor feature BxNxC and its label BxN, B is batch size, C is the dimension of features, the range of label is K, the output I want is BxKxC. Features with the same label are combined together and outputs its mean feature with its specific label。



Anyone know how to implement this function?



I have implemented some but it seems ugly.



label_class = 12
for batch in range(part_pred.get_shape().as_list()[0]):
batch_label = part_label[batch]
batch_pred = mesh_point_net[batch,...]
for label in range(label_class):
condition = tf.equal(batch_label, label)
index = tf.where(condition)
pred = tf.reduce_mean(tf.gather(batch_pred, index), axis=0)
if label == 0:
batch_mean_pred = pred
else:
batch_mean_pred = tf.concat([batch_mean_pred, pred], axis=0)
if batch == 0:
mean_pred = tf.expand_dims(batch_mean_pred, axis=0)
else:
mean_pred = tf.concat([mean_pred,tf.expand_dims(batch_mean_pred, axis=0)], axis=0)






python tensorflow






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asked Nov 16 '18 at 17:41









Xu ZhengtianXu Zhengtian

111




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  • Or which function can implement batch operations?

    – Xu Zhengtian
    Nov 17 '18 at 10:48



















  • Or which function can implement batch operations?

    – Xu Zhengtian
    Nov 17 '18 at 10:48

















Or which function can implement batch operations?

– Xu Zhengtian
Nov 17 '18 at 10:48





Or which function can implement batch operations?

– Xu Zhengtian
Nov 17 '18 at 10:48












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