title: using unknowns to prevent discovery of association rules chris clifton , yücel saygin , vassilios s. verykios sigmod record. authors: nan. venue: nan. year: 2001.0
title: using unknowns to prevent discovery of association rules acm sigmod record 2001. authors: y &#252; cel saygin , vassilios s. verykios , chris clifton. venue: nan. year: nan