class FeatureExtractor[M[_], T] extends Serializable
Encapsulate features extracted from a FeatureSpec.
- M
input collection type, e.g.
Array
, List- T
input record type to extract features from
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- FeatureExtractor.scala
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lazy val
featureNames: M[Seq[String]]
Names of the extracted features, in the same order as values in featureValues.
Names of the extracted features, in the same order as values in featureValues.
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- @transient()
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def
featureResults[F](implicit arg0: FeatureBuilder[F], arg1: ClassTag[F]): M[FeatureResult[F, T]]
Values of the extracted features, in the same order as names in featureNames with rejections keyed on feature name and the original input record.
Values of the extracted features, in the same order as names in featureNames with rejections keyed on feature name and the original input record.
- F
output data type, e.g.
Array[Float]
,Array[Double]
,DenseVector[Float]
,DenseVector[Double]
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lazy val
featureSettings: M[String]
JSON settings of the FeatureSpec and aggregated feature summary.
JSON settings of the FeatureSpec and aggregated feature summary.
This can be used with FeatureSpec.extractWithSettings[F]* to bypass the
reduce
step when extracting new records of the same type.- Annotations
- @transient()
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def
featureValues[F](implicit arg0: FeatureBuilder[F], arg1: ClassTag[F]): M[F]
Values of the extracted features, in the same order as names in featureNames.
Values of the extracted features, in the same order as names in featureNames.
- F
output data type, e.g.
Array[Float]
,Array[Double]
,DenseVector[Float]
,DenseVector[Double]
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