represents a feature extractor function generated by FeatureExtraction .
FeatureExtractorFunction
represents a feature extractor function generated by FeatureExtraction .
Details and Options
- FeatureExtractorFunction works like Function .
- FeatureExtractorFunction […][data] extracts features from data.
- FeatureExtractorFunction […][{data1,data2,…}] extracts features from each of the datai.
- 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:
-
RandomSeeding 1234 what seeding of pseudorandom generators should be done internally
- Possible settings for RandomSeeding include:
-
Automatic automatically reseed every time the function is calledInherited use externally seeded random numbersseed use an explicit integer or strings as a seed
Examples
open all close allBasic Examples (1)
Train a FeatureExtractorFunction on a simple dataset:
Extract features from a new example:
Extract features from a list of examples:
Scope (5)
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:
Get Information from a trained FeatureExtractorFunction :
Find the available properties:
Get information about the feature names and training examples:
Related Guides
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.html
BibTeX
@misc{reference.wolfram_2025_featureextractorfunction, author="Wolfram Research", title="{FeatureExtractorFunction}", year="2017", howpublished="\url{https://reference.wolfram.com/language/ref/FeatureExtractorFunction.html}", note=[Accessed: 17-November-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: 17-November-2025]}