Struct gapi_grpc::google::cloud::bigquery::v2::model::RankingMetrics

pub struct RankingMetrics {
    pub mean_average_precision: Option<f64>,
    pub mean_squared_error: Option<f64>,
    pub normalized_discounted_cumulative_gain: Option<f64>,
    pub average_rank: Option<f64>,
}

Evaluation metrics used by weighted-ALS models specified by feedback_type=implicit.

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.

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.

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.

Trait Implementations

impl Clone for RankingMetrics

fn clone(&self) -> RankingMetrics

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RankingMetrics

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

Formats the value using the given formatter.

impl Default for RankingMetrics

fn default() -> RankingMetrics

Returns the “default value” for a type.

impl Message for RankingMetrics

fn encode_raw<B>(&self, buf: &mut B) where
    B: BufMut, 

fn merge_field<B>(
    &mut self,
    tag: u32,
    wire_type: WireType,
    buf: &mut B,
    ctx: DecodeContext
) -> Result<(), DecodeError> where
    B: Buf, 

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

pub fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message to a buffer.

pub fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError> where
    B: BufMut, 

Encodes the message with a length-delimiter to a buffer.

pub fn decode<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes an instance of the message from a buffer.

pub fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError> where
    Self: Default,
    B: Buf, 

Decodes a length-delimited instance of the message from the buffer.

pub fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes an instance of the message from a buffer, and merges it into self.

pub fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError> where
    B: Buf, 

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq<RankingMetrics> for RankingMetrics

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl StructuralPartialEq for RankingMetrics