no code implementations • 7 Jan 2024 • Kyle Dylan Spurlock, Cagla Acun, Esin Saka, Olfa Nasraoui
Recommendation algorithms have been pivotal in handling the overwhelming volume of online content.
1 code implementation • 22 Jan 2023 • Khalil Damak, Sami Khenissi, Olfa Nasraoui
The most common approach to mitigating exposure bias in recommendation has been Inverse Propensity Scoring (IPS), which consists of down-weighting the interacted predictions in the loss function in proportion to their propensities of exposure, yielding a theoretically unbiased learning.
1 code implementation • 30 Jul 2021 • Khalil Damak, Sami Khenissi, Olfa Nasraoui
In this work, we first propose a novel explainable loss function and a corresponding Matrix Factorization-based model called Explainable Bayesian Personalized Ranking (EBPR) that generates recommendations along with item-based explanations.
1 code implementation • 21 Aug 2020 • Sami Khenissi, Mariem Boujelbene, Olfa Nasraoui
We present a theoretical framework to model the asymptotic evolution of the different components of a recommender system operating within a feedback loop setting, and derive theoretical bounds and convergence properties on quantifiable measures of the user discovery and blind spots.
no code implementations • 1 Jan 2020 • Sami Khenissi, Olfa Nasraoui
Then we model the exposure that is borne from the interaction between the user and the recommender system and propose new debiasing strategies for these systems.
no code implementations • 23 Dec 2019 • Pegah Sagheb Haghighi, Olurotimi Seton, Olfa Nasraoui
In this work, we design an explainable recommendation system using an Autoencoder model whose predictions can be explained using the neighborhood based explanation style.
1 code implementation • 25 Jun 2019 • Khalil Damak, Olfa Nasraoui
State of the art music recommender systems mainly rely on either matrix factorization-based collaborative filtering approaches or deep learning architectures.
no code implementations • 29 Aug 2016 • Olfa Nasraoui, Patrick Shafto
In this paper, we present a preliminary theoretical model and analysis of the mutual interaction between humans and algorithms, based on an iterated learning framework that is inspired from the study of human language evolution.
no code implementations • 22 Jun 2016 • Behnoush Abdollahi, Olfa Nasraoui
Most accurate recommender systems are black-box models, hiding the reasoning behind their recommendations.
no code implementations • 12 Jan 2016 • Ehsan Hosseini-Asl, Jacek M. Zurada, Olfa Nasraoui
We demonstrate a new deep learning autoencoder network, trained by a nonnegativity constraint algorithm (NCAE), that learns features which show part-based representation of data.