Glossary term
Glossary term
Architecture
Overloaded term having either of the following definitions:
Retrieving intermediate feature representations calculated by an unsupervised or pre-trained model (for example, hidden layer values in a neural network) for use in another model as input.
Synonym for feature engineering.
Created for this library
A computer vision team uses a frozen pretrained backbone for feature extraction and trains only a small head on its own labels.
An NLP team performs feature extraction with sentence embeddings to power a downstream classifier without fine-tuning the base model.
A medical imaging team uses feature extraction from a pretrained chest-X-ray model to bootstrap classifiers on smaller, rarer conditions.
Definition source: Google for Developers Machine Learning Glossary | Creative Commons Attribution 4.0 License