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FeatureExtractorFunction—Wolfram Language Documentation

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BUILT-IN SYMBOL

Details and Options

FeatureExtractorFunction works like Function.
FeatureExtractorFunction[…][data] extracts features from data.
FeatureExtractorFunction[…][{data₁,data₂,…}] extracts features from each of the data_i.
FeatureExtractorFunction[…][data,prop] gives the specified property of the feature extraction associated with data.
Possible properties include:
"ExtractedFeatures" features extracted from data (default) "OriginalData" deduce original data from extracted features "ReconstructedData" extraction and inverse extraction of data
The following options can be given:
Possible settings for RandomSeeding include:
Automatic automatically reseed every time the function is called Inherited use externally seeded random numbers seed use an explicit integer or strings as a seed

Examplesopen allclose all Basic Examples (1)

Train a FeatureExtractorFunction on a simple dataset:

Extract features from a new example:

Extract features from a list of examples:

Scope (2)

Some feature extractors can only perform an approximation of the inverse extraction:

The FeatureExtraction property "ReconstructedData" can be used to obtain the data after extraction and reconstruction:

Some feature extractors cannot be inverted:

Train a feature extractor from a dataset that contains missing values:

The feature extractor now indicates that missing values are imputed. The feature extractor can extract features even when values are missing:

Wolfram Research (2016), FeatureExtractorFunction, Wolfram Language function, https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html (updated 2017). Text Wolfram Research (2016), FeatureExtractorFunction, Wolfram Language function, https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html (updated 2017).CMS Wolfram Language. 2016. "FeatureExtractorFunction." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2017. https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html.APA Wolfram Language. (2016). FeatureExtractorFunction. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FeatureExtractorFunction.htmlBibTeX @misc{reference.wolfram_2025_featureextractorfunction, author="Wolfram Research", title="{FeatureExtractorFunction}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html}", note=[Accessed: 12-July-2025 ]}BibLaTeX @online{reference.wolfram_2025_featureextractorfunction, organization={Wolfram Research}, title={FeatureExtractorFunction}, year={2017}, url={https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html}, note=[Accessed: 12-July-2025 ]}

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