21. The method of claim 20 , wherein the one or more user input events from the first type of user are used to influence the relevance score of documents to present to a second type of user that has not provided at least one user input event.
21. The method of claim 20 , wherein the one or more user input events from the first type of user are used to influence the relevance score of documents to present to a second type of user that has not provided at least one user input event. 22. The method of claim 21 , wherein a plurality of the first type of user is treated by the relevance model as a group.