Struct SelectiveMetrics 

pub struct SelectiveMetrics {
    pub predictions: usize,
    pub abstentions: usize,
    pub correct: usize,
    pub coverage: f64,
    pub accuracy: f64,
    pub risk: f64,
}

Metrics for evaluating selective prediction.

Captures the coverage-accuracy tradeoff.

Fields

predictions: usize

Total predictions made (excluding abstentions)

abstentions: usize

Total abstentions

correct: usize

Correct predictions

coverage: f64

Coverage = predictions / (predictions + abstentions)

accuracy: f64

Accuracy = correct / predictions (among non-abstained)

risk: f64

Risk = incorrect / (predictions + abstentions) (including abstention penalty)

Implementations

impl SelectiveMetrics

pub fn compute(predictions: &[(Option<EntityType>, EntityType)]) -> Self

Compute selective metrics from predictions and gold labels.

Arguments

• predictions - Vec of (predicted_type_or_none, gold_type)
  • Some(t) = prediction made
  • None = abstained

pub fn coverage_accuracy_auc( uncertain_predictions: &[(UncertainPrediction, EntityType)], ) -> f64

Compute AUC for coverage-accuracy curve.

Higher is better. Measures area under the coverage-accuracy curve as threshold varies.

Trait Implementations

impl Clone for SelectiveMetrics

fn clone(&self) -> SelectiveMetrics

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SelectiveMetrics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SelectiveMetrics

fn default() -> SelectiveMetrics

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SelectiveMetrics

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for SelectiveMetrics

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Serialize for SelectiveMetrics

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.