Struct Provenance 

pub struct Provenance {
    pub source: Cow<'static, str>,
    pub method: ExtractionMethod,
    pub pattern: Option<Cow<'static, str>>,
    pub raw_confidence: Option<f64>,
    pub model_version: Option<Cow<'static, str>>,
    pub timestamp: Option<String>,
}

Provenance information for an extracted entity.

Tracks where an entity came from for debugging, explainability, and confidence calibration in hybrid/ensemble systems.

Fields

source: Cow<'static, str>

Name of the backend that produced this entity (e.g., “pattern”, “bert-onnx”)

method: ExtractionMethod

Extraction method used

pattern: Option<Cow<'static, str>>

Specific pattern/rule name (for pattern/rule-based extraction)

raw_confidence: Option<f64>

Raw confidence from the source model (before any calibration)

model_version: Option<Cow<'static, str>>

Model version for reproducibility (e.g., “gliner-v2.1”, “bert-base-uncased-2024-01”)

timestamp: Option<String>

Timestamp when extraction occurred (ISO 8601)

Implementations

impl Provenance

pub fn pattern(pattern_name: &'static str) -> Self

Create provenance for regex-based extraction.

pub fn ml(model_name: impl Into<Cow<'static, str>>, confidence: f64) -> Self

Create provenance for ML-based extraction.

Accepts both static strings and owned strings:

// Static string (zero allocation)
Provenance::ml("gliner", 0.95);

// Owned string (dynamic model name)
Provenance::ml(model_name.to_string(), 0.95);

pub fn ml_owned(model_name: impl Into<String>, confidence: f64) -> Self

👎Deprecated since 0.2.1: Use ml() instead, it now accepts owned strings

Deprecated: Use ml() instead which now accepts both static and owned strings.

pub fn ensemble(sources: &'static str) -> Self

Create provenance for ensemble/hybrid extraction.

pub fn with_version(self, version: &'static str) -> Self

Create provenance with model version for reproducibility.

pub fn with_timestamp(self, timestamp: impl Into<String>) -> Self

Create provenance with timestamp.

Trait Implementations

impl Clone for Provenance

fn clone(&self) -> Provenance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Provenance

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

Formats the value using the given formatter.

impl Default for Provenance

fn default() -> Provenance

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Provenance

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Provenance

fn eq(&self, other: &Provenance) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Provenance

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Provenance