A computer-implemented method and system to manage user profiles regarding user preferences towards a content.;In the computer-implemented method of the invention said content is previously rated by a group of users via computing devices, and it is characterised in that it comprises generating adaptive catalogues for a user by means of Item Response Theory models applied to said content and generating a user profile for said user by at least presenting items of said adaptive catalogues to said user, through a user computing device, and analysing scores given by said user to said items via said user computing device.;The system of the invention is arranged to implement the method of the invention.
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