System and method for product recommendation and automatic service equipment thereof and computer readable recording medium storing computer program performing the method

摘要

A system for product recommendation comprises several automatic service equipments which are mutually linked via a communication network. Each of the automatic service equipments obtains data of other user groups, data of other product groups and other, relation matrixes from other automatic service equipments. Each of the automatic service equipments integrates data of other user groups into data of local user groups stored in itself, and also integrates data of other product groups into data of local product groups stored in itself. Each of the automatic service equipments revises a local relation matrix stored in itself, such that the revised local relation matrix records correlation coefficients between the integrated local user groups and the integrated local product groups. Each of the automatic service equipments performs product recommendation according to the integrated data and input data received through an input device.