org.apache.ignite.ml.selection.scoring.evaluator

Class Evaluator

java.lang.Object

org.apache.ignite.ml.selection.scoring.evaluator.Evaluator

public class Evaluator
extends Object

Binary classification evaluator that compute metrics from predictions.

Constructor Summary

Constructors

Constructor and Description
Evaluator()

Method Summary

Modifier and Type	Method and Description
static <L,K,V> double	evaluate(IgniteCache<K,V> dataCache, IgniteBiPredicate<K,V> filter, Model<Vector,L> mdl, IgniteBiFunction<K,V,Vector> featureExtractor, IgniteBiFunction<K,V,L> lbExtractor, Accuracy<L> metric) Computes the given metric on the given cache.
static <L,K,V> double	evaluate(IgniteCache<K,V> dataCache, Model<Vector,L> mdl, IgniteBiFunction<K,V,Vector> featureExtractor, IgniteBiFunction<K,V,L> lbExtractor, Accuracy<L> metric) Computes the given metric on the given cache.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Evaluator

public Evaluator()

Method Detail

evaluate

public static <L,K,V> double evaluate(IgniteCache<K,V> dataCache,
                                      Model<Vector,L> mdl,
                                      IgniteBiFunction<K,V,Vector> featureExtractor,
                                      IgniteBiFunction<K,V,L> lbExtractor,
                                      Accuracy<L> metric)

Computes the given metric on the given cache.

Type Parameters:

L - The type of label.

K - The type of cache entry key.

V - The type of cache entry value.

Parameters:

dataCache - The given cache.

mdl - The model.

featureExtractor - The feature extractor.

lbExtractor - The label extractor.

metric - The binary classification metric.

Returns:

Computed metric.

evaluate

public static <L,K,V> double evaluate(IgniteCache<K,V> dataCache,
                                      IgniteBiPredicate<K,V> filter,
                                      Model<Vector,L> mdl,
                                      IgniteBiFunction<K,V,Vector> featureExtractor,
                                      IgniteBiFunction<K,V,L> lbExtractor,
                                      Accuracy<L> metric)

Computes the given metric on the given cache.

Type Parameters:

L - The type of label.

K - The type of cache entry key.

V - The type of cache entry value.

Parameters:

dataCache - The given cache.

filter - The given filter.

mdl - The model.

featureExtractor - The feature extractor.

lbExtractor - The label extractor.

metric - The binary classification metric.

Returns:

Computed metric.