Assertion: ensemble | /r/CapableOf | create tier 1 classifiers
Facets:
Source sentences:
text: In Wolpert's stacked generalization (or stacking), an ensemble of classifiers is first trained using bootstrapped samples of the training data, creating Tier 1 classifiers, whose outputs are then used to train a Tier 2 classifier (meta-classifier) (Wolpert 1992).