Finding the influence set through skylines

Abstract

Given a set P of products, a set O of customers, and a product p ε P, a bichromatic reverse skyline query retrieves all the customers in O that do not find any other product in P to be absolutely better than p. More specifically, a customer o ε O is in the reverse skyline of p ε P if and only no other product in P better matches the preference of o on all dimensions.