Self-reinforcing feedback loops are both cause and effect of over and/or under-presentation of some content in interactive recommender systems. This leads to erroneous user preference estimates, namely, overestimation of over-presented content while violating the right to be presented of each alternative, contrary of which we define as a fair system. We consider two models that explicitly incorporate, or ignore the systematic and limited exposure to alternatives. By simulations, we demonstrate that ignoring the systematic presentations overestimates promoted options and underestimates censored alternatives. Simply conditioning on the limited exposure is a remedy for these biases.
@article{arxiv.2012.12862,
title = {Towards Fair Personalization by Avoiding Feedback Loops},
author = {Gökhan Çapan and Özge Bozal and İlker Gündoğdu and Ali Taylan Cemgil},
journal= {arXiv preprint arXiv:2012.12862},
year = {2020}
}
Comments
NeurIPS 2019 Workshop on Human-Centric Machine Learning