preprocess
Prepare data first
To preprocess is to prepare data or materials before the main processing begins.
In computing, preprocessing transforms raw input into a standardized format that subsequent operations can handle: The script preprocesses the images before feeding them to the neural network.
The term appears in fields from linguistics to manufacturing wherever preliminary transformation is needed.
Removing dirt and mess
- normalizationAdjusting to a standard
- scalingClimbing or resizing
- tokenizationConverting input into discrete units
- encodingConverting data to format
filtering · imputation · augmentation · balancing · stemming · vectorization · smoothing · standardization
Converting input into discrete units
- stemmingRoot-form reduction process
- parsingGrammatical structure extraction
- normalizationAdjusting to a standard
- lowercasingMaking letters minuscule
spell-check · segmentation · chunking · tagging · annotation · regex · vocabulary · corpus
Arrangement of parts
- initializationPreparing system for operation
- dependenciesThings required for operation
- environmentExternal conditions affecting life
- parametersDefined boundaries or constraints
installation · scripting · automation · workflow · batch · scheduler · ETL · ingestion
Changing an object's dimensions
- croppingCutting to resize
- normalizationAdjusting to a standard
- augmentationAct of adding more
- grayscaleTonal range, black to white
contrast · brightness · rotation · flipping · scaling · denoising · sharpening · blurring
Selective passage of elements
- samplingExtracting subset for study
- resamplingRepeated random selection method
- digitizeConvert to electronic format
- quantizeRestrict to discrete values
analog-to-digital · interpolate · smoothing · dithering · compression · denoising · windowing · convolution
cleaning
Removing dirt and mess
- normalizationAdjusting to a standard
- scalingClimbing or resizing
- tokenizationConverting input into discrete units
encoding · filtering · imputation · augmentation · balancing · stemming · vectorization · smoothing · standardization · binning
tokenization
Converting input into discrete units
- stemmingRoot-form reduction process
- parsingGrammatical structure extraction
- normalizationAdjusting to a standard
lowercasing · spell-check · segmentation · chunking · tagging · annotation · regex · vocabulary · corpus · embedding
configuration
Arrangement of parts
- initializationPreparing system for operation
- dependenciesThings required for operation
- environmentExternal conditions affecting life
parameters · installation · scripting · automation · workflow · batch · scheduler · ETL · ingestion · staging
resizing
Changing an object's dimensions
- croppingCutting to resize
- normalizationAdjusting to a standard
- augmentationAct of adding more
grayscale · contrast · brightness · rotation · flipping · scaling · denoising · sharpening · blurring · thresholding
filtering
Selective passage of elements
- samplingExtracting subset for study
- resamplingRepeated random selection method
- digitizeConvert to electronic format
quantize · analog-to-digital · interpolate · smoothing · dithering · compression · denoising · windowing · convolution · modulation