||Class that performs collaborative filtering on a set of actors via their links
to another mode of actors.
||Represents a single association between a set of actors and a destiation actor
This association has a significance level and may be positive or negative.
||Class for bundling Association Objects.
||Performs classic Item to Item collaborative filtering.
||Performs User to user collaborative filtering where similar users' links to
destination actors (items) are used to suggest items for the given user.