Abstract: A system for automatically complementing a profile partially specified by a user, based on profiles of other users of the systems. Complemented attributes of the profile can be used to search for recommended products or services in a partner dataset. User profiles are stored in a database table with multiple fields and the complementation of the fields, in response to a request to the server, is proposed as a list of possible values for each field. These suggested values can be matched with products or services descriptions in order to retrieve those that the user initiating the request might be interested in even though they did not appear explicitly in his profile in the first place.

Abstract: The invention concerns a search engine for retrieving from a database (3) a list of data in response to a request, said database (3) having a matrix structure, said search engine containing a first set (J1) of instruction codes executable by a first computer terminal, said search terminal (TR), connected to a telecommunication network (R), to carry out successive operations consisting in: sending to a second computer terminal (TI) an interrogation software module (16) containing a second set of executable instruction codes (J2) to send to said search terminal a request (20) comprising said reference profile Pr and an interrogation domain; calculating weighted frequencies (FPqm); sending a reply (12) to said request containing the reply data (Dqm) which have the highest weighted frequencies (FPqm).