A subinstance of TrainingData whose labels are -1 or 1.
A CandidatePool is an abstraction for a "pool" of comparable objects.
A CandidatePoolCorpus is a set of candidate pools (see CandidatePool, above).
Maps feature names to integers.
The name of a feature, represented as a list of Symbols.
A mapping from feature names to values.
A weighted linear combination of features.
Abstraction for a set of labeled feature vectors.