The method of the invention is executed by a computer under the control of a program stored in computer memory. The method includes the step of accumulating preference data for a set of individuals. The preference data is transformed from multi-dimensional data to lower-dimensional data using a principal...http://www.google.de/patents/US6606624?utm_source=gb-gplus-sharePatent US6606624 - Apparatus and method for recommending to an individual selective information contained within a computer network
