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:
-
PerformanceGoal Automatic aspects of performance to try to optimize RandomSeeding 1234 what seeding of pseudorandom generators should be done internally - Possible settings for RandomSeeding include:
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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
Examples
open allclose allBasic Examples (1)
Train a FeatureExtractorFunction on a simple dataset:
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:
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