Held out probability of creating a new topic in the mixture.
Number of times we have seen the label and topic.
Number of times we have seen the label, topic, and term together.
Returns the number of allocated (possibly-unused) topics in the label.
Number of labels in the model.
Number of labels in the model.
Number of terms in the model.
Number of terms in the model.
Tracks the number of non-empty topics in the given label.
Partially Latent Dirichlet Process model. Mixes together a set of dirichlet process models by picking an (observed) subset of dirichlet process models.