FindMatchesMetrics class

The evaluation metrics for the find matches algorithm. The quality of your machine learning transform is measured by getting your transform to predict some matches and comparing the results to known matches from the same dataset. The quality metrics are based on a subset of your data, so they are not precise.

Constructors

FindMatchesMetrics({double? areaUnderPRCurve, List<ColumnImportance>? columnImportances, ConfusionMatrix? confusionMatrix, double? f1, double? precision, double? recall})
FindMatchesMetrics.fromJson(Map<String, dynamic> json)
factory

Properties

areaUnderPRCurve → double?
The area under the precision/recall curve (AUPRC) is a single number measuring the overall quality of the transform, that is independent of the choice made for precision vs. recall. Higher values indicate that you have a more attractive precision vs. recall tradeoff.
final
columnImportances → List<ColumnImportance>?
A list of ColumnImportance structures containing column importance metrics, sorted in order of descending importance.
final
confusionMatrix → ConfusionMatrix?
The confusion matrix shows you what your transform is predicting accurately and what types of errors it is making.
final
f1 → double?
The maximum F1 metric indicates the transform's accuracy between 0 and 1, where 1 is the best accuracy.
final
hashCode → int
The hash code for this object.
no setterinherited
precision → double?
The precision metric indicates when often your transform is correct when it predicts a match. Specifically, it measures how well the transform finds true positives from the total true positives possible.
final
recall → double?
The recall metric indicates that for an actual match, how often your transform predicts the match. Specifically, it measures how well the transform finds true positives from the total records in the source data.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited