Questions tagged [weighted-data]

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How to balance dataset using fit_generator() in Keras?

I am trying to use keras to fit a CNN model to classify 2 classes of data . I have imbalanced dataset I want to balance my data equally. How I can do that ?? Any help would be appreciated The main ...
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35 views

When exactly should I use weighted loss?

Do I have to use it in any case when the class distribution is imbalance (Train: class A:10%, B:90% and Test: class A:10%, B:90%) or when it is different (Train: class A:10%, B:90% and Test: class A:...
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How to visualize the weights of the output(classification) layer?

I'm doing a Convolutional Neural Network of MNIST data set, and how can I visualize the weights of the output(classification) layer? I only found several websites visualizing the filters in CNN model ...
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132 views

Clustering with custom criterion (minimum cluster weight)

Edit: following comment from @anony-mousse, I'm changing the question to search for a general clustering approach that matches this criterion (minimum weight per cluster). I am to use a clustering ...
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1answer
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Class weights for imbalanced data in multilabel problems

I am trying to train a CNN for a multiclass - multilabel classification task (20 classes, each sample can belong to 1+ labels) and the dataset is highly imbalanced. In single-label cases I would use ...
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How to redistribute weightage proportionally?

I want to increase proportional increase weightage. For example, I have weights w1 = 0.4 w2 = 0.3 w3 = 0.2 w4 = 0.1 with a constraint that the total sum of the ...

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