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By default, a Feature Extraction node builds a Non-Negative Matrix Factorization model.
If you are connected to Oracle Database 12c or later, the node also builds a Principal Component Analysis model. You can specify that the node build a Singular Value Decomposition model.
If you want to never build models using one of the algorithms by default, deselect that algorithm. A user will still be able to add models using the deselected algorithm to a clustering node.