[−][src]Struct google_bigquery2::RankingMetrics
Evaluation metrics used by weighted-ALS models specified by feedback_type=implicit.
This type is not used in any activity, and only used as part of another schema.
Fields
mean_average_precision: Option<f64>
Calculates a precision per user for all the items by ranking them and then averages all the precisions across all the users.
mean_squared_error: Option<f64>
Similar to the mean squared error computed in regression and explicit recommendation models except instead of computing the rating directly, the output from evaluate is computed against a preference which is 1 or 0 depending on if the rating exists or not.
average_rank: Option<f64>
Determines the goodness of a ranking by computing the percentile rank from the predicted confidence and dividing it by the original rank.
normalized_discounted_cumulative_gain: Option<f64>
A metric to determine the goodness of a ranking calculated from the predicted confidence by comparing it to an ideal rank measured by the original ratings.
Trait Implementations
impl Clone for RankingMetrics
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fn clone(&self) -> RankingMetrics
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fn clone_from(&mut self, source: &Self)
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impl Debug for RankingMetrics
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impl Default for RankingMetrics
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fn default() -> RankingMetrics
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impl<'de> Deserialize<'de> for RankingMetrics
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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
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__D: Deserializer<'de>,
impl Part for RankingMetrics
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impl Serialize for RankingMetrics
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Auto Trait Implementations
impl RefUnwindSafe for RankingMetrics
impl Send for RankingMetrics
impl Sync for RankingMetrics
impl Unpin for RankingMetrics
impl UnwindSafe for RankingMetrics
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
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T: for<'de> Deserialize<'de>,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Typeable for T where
T: Any,
T: Any,