Relevance filter

From Pelennor

A relevance filter catches all data passed from anonymous external sources and compares it to the content in the local repository. If certain criteria are met, the pushed content is persisted, otherwise it is blocked. A relevance filter has the fundamental behavioral property of improving accuracy as the amount of data stored by the user increases. These may be thought of as adaptive content firewalls. They may be optionally used against trusted external sources the user discretion, although doing so may defeat the Pelennor content distribution model.