{ }
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Computes the specificity at a given sensitivity.
tf.compat.v1.metrics.sensitivity_at_specificity(
labels,
predictions,
specificity,
weights=None,
num_thresholds=200,
metrics_collections=None,
updates_collections=None,
name=None
)
The sensitivity_at_specificity
function creates four local
variables, true_positives
, true_negatives
, false_positives
and
false_negatives
that are used to compute the sensitivity at the given
specificity value. The threshold for the given specificity value is computed
and used to evaluate the corresponding sensitivity.
For estimation of the metric over a stream of data, the function creates an
update_op
operation that updates these variables and returns the
sensitivity
. update_op
increments the true_positives
, true_negatives
,
false_positives
and false_negatives
counts with the weight of each case
found in the predictions
and labels
.
If weights
is None
, weights default to 1. Use weights of 0 to mask values.
For additional information about specificity and sensitivity, see the following: https://en.wikipedia.org/wiki/Sensitivity_and_specificity