activity
20162023
most citedDeep Learning of Part-based Representation of Data Using Sparse Autoencoders with Nonnegativity Constraints

218 citations · 295 across the 9 of their papers we have counts for

collaborators

9 papers

cs.LG2023★ 10 cited

Debiasing the Cloze Task in Sequential Recommendation with Bidirectional Transformers

Khalil Damak, Sami Khenissi, Olfa Nasraoui

Bidirectional Transformer architectures are state-of-the-art sequential recommendation models that use a bi-directional representation capacity based on the Cloze task, a.k.a. Mask…

cs.IR2021★ 22 cited

Debiased Explainable Pairwise Ranking from Implicit Feedback

Khalil Damak, Sami Khenissi, Olfa Nasraoui

Recent work in recommender systems has emphasized the importance of fairness, with a particular interest in bias and transparency, in addition to predictive accuracy. In this paper…

cs.IR2020

Theoretical Modeling of the Iterative Properties of User Discovery in a Collaborative Filtering Recommender System

Sami Khenissi, Mariem Boujelbene, Olfa Nasraoui

The closed feedback loop in recommender systems is a common setting that can lead to different types of biases. Several studies have dealt with these biases by designing methods to…

cs.IR2020★ 3 cited

Modeling and Counteracting Exposure Bias in Recommender Systems

Sami Khenissi, Olfa Nasraoui

What we discover and see online, and consequently our opinions and decisions, are becoming increasingly affected by automated machine learned predictions. Similarly, the predictive…

cs.IR2019★ 7 cited

An Explainable Autoencoder For Collaborative Filtering Recommendation

Pegah Sagheb Haghighi, Olurotimi Seton, Olfa Nasraoui

Autoencoders are a common building block of Deep Learning architectures, where they are mainly used for representation learning. They have also been successfully used in Collaborat…

cs.IR2019★ 1 cited

SeER: An Explainable Deep Learning MIDI-based Hybrid Song Recommender System

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. Deep learning models…

cs.LG2016★ 8 cited

Human-Algorithm Interaction Biases in the Big Data Cycle: A Markov Chain Iterated Learning Framework

Olfa Nasraoui, Patrick Shafto

Early supervised machine learning algorithms have relied on reliable expert labels to build predictive models. However, the gates of data generation have recently been opened to a…

stat.ML2016★ 26 cited

Explainable Restricted Boltzmann Machines for Collaborative Filtering

Behnoush Abdollahi, Olfa Nasraoui

Most accurate recommender systems are black-box models, hiding the reasoning behind their recommendations. Yet explanations have been shown to increase the user's trust in the syst…

cs.LG2016★ 218 cited

Deep Learning of Part-based Representation of Data Using Sparse Autoencoders with Nonnegativity Constraints

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. T…