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DriftDetectorState

irithyll_core::drift

Enum DriftDetectorState 

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#[non_exhaustive]
pub enum DriftDetectorState {
    PageHinkley {
        running_mean: f64,
        sum_up: f64,
        min_sum_up: f64,
        sum_down: f64,
        min_sum_down: f64,
        count: u64,
    },
    Adwin {
        rows: Vec<Vec<AdwinBucketState>>,
        total: f64,
        variance: f64,
        count: u64,
        width: u64,
    },
    Ddm {
        mean: f64,
        m2: f64,
        count: u64,
        min_p_plus_s: f64,
        min_s: f64,
    },
}
Available on crate feature alloc only.
Expand description

Serializable state for any drift detector variant.

Captures running statistics so that save/load cycles preserve accumulated warmup data instead of creating a fresh detector (which would cause spurious drift signals).

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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PageHinkley

Page-Hinkley Test accumulated state.

Fields

§running_mean: f64

Running mean of the observed stream.

§sum_up: f64

Cumulative upward deviation sum.

§min_sum_up: f64

Minimum upward deviation sum seen so far.

§sum_down: f64

Cumulative downward deviation sum.

§min_sum_down: f64

Minimum downward deviation sum seen so far.

§count: u64

Number of samples observed.

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Adwin

ADWIN exponential histogram state.

Fields

§rows: Vec<Vec<AdwinBucketState>>

Exponential histogram rows (each row contains buckets of equal width).

§total: f64

Running total of all values in the window.

§variance: f64

Running variance estimate.

§count: u64

Total count of values in the window.

§width: u64

Current adaptive window width.

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Ddm

DDM Welford running statistics state.

Fields

§mean: f64

Online mean of the error stream (Welford).

§m2: f64

Sum of squared deviations from the mean (Welford M2).

§count: u64

Number of samples observed.

§min_p_plus_s: f64

Minimum observed p + s (mean + std dev), used for drift threshold.

§min_s: f64

Minimum observed standard deviation.

Trait Implementations§

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impl Clone for DriftDetectorState

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fn clone(&self) -> DriftDetectorState

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for DriftDetectorState

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for DriftDetectorState

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for DriftDetectorState

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

Serialize this value into the given Serde serializer. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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