tf.keras.losses.Tversky

Computes the Tversky loss value between y_true and y_pred.

Inherits From: Loss

tf.keras.losses.Tversky(
    alpha=0.5,
    beta=0.5,
    reduction='sum_over_batch_size',
    name='tversky'
)

This loss function is weighted by the alpha and beta coefficients that penalize false positives and false negatives.

With alpha=0.5 and beta=0.5, the loss value becomes equivalent to Dice Loss.

Args
`y_true`	tensor of true targets.
`y_pred`	tensor of predicted targets.
`alpha`	coefficient controlling incidence of false positives.
`beta`	coefficient controlling incidence of false negatives.

Returns
Tversky loss value.

Methods

call(
    y_true, y_pred
)

@classmethod
from_config(
    config
)

get_config()

__call__(
    y_true, y_pred, sample_weight=None
)

Call self as a function.

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Licensed under the Creative Commons Attribution License 4.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_docs/python/tf/keras/losses/Tversky