“…Also, for sake of brevity few other data mining methods are briefly described aiming to show different important features of the considered education system. For more information the reader may investigate the other quoted papers (Jotsov, 1999(Jotsov, , 2002(Jotsov, , 2008. After that the main features are discussed: visualization of the method, the transfer of a sense during the dialog, and approaches how to make the human-machine interaction productive.…”