7. The computer-implemented method of claim 5 , wherein said dividing includes dividing the human searchers into apprentices, pros, and masters, and conducting said training based on the dividing.
7. The computer-implemented method of claim 5 , wherein said dividing includes dividing the human searchers into apprentices, pros, and masters, and conducting said training based on the dividing. 9. The computer-implemented method of claim 7 , wherein said pros are human searchers who receive the training and user requests.