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Associate professor – HDR  in Computer Science (section CNU 27) at Université de Lorraine Since 2003.

Head of the BIRD research team at LORIA lab, PI of the ANR BOOM (2020-2024) project.

Teaching at IDMC (Institute of Digital Sciences, Management and Cognition), head of the 2nd year of Master in Cognitive Sciences (2012-2018: head of the Bachelor in Mathematics and Computer Science applied to Social and Human Sciences)

My research interests are: artificial intelligence, including user modelling: preferences and behavior for diagnostic, predictive and prescriptive modelling, with a specific focus on the design of recommender systems. My approach relies on machine learning and data mining.

I am currently the co-adviser of the following PhD students:

  • Ikram Gagaoua « Conception d’un méta-modèle apprenant » Thèse CIFRE. Defence planned in March 2025.
  • Célina Treuillier « News Recommender Systems to Open Opinion Bubbles ». Defence planned in October 2024.
  • Nicolas Hubert  » Recommender system for educational orientation ». Defence planned in October 2024.
  • Evan Dufraisse « Hybrid representation of polarising topics in political news ». Defence planned in March 2024.
  • Patrick Asante Owusu « Causal inference for recommendation ». International co-tutelle with  Université de Sherbrooke (Québec), co-advised by Pr. Shengrui Wang. Defence planned in November 2023.
  • Alexandre Bettinger « Recommandation multi-acteurs pour la consommation de livres numériques en éducation ». Defence planned in November 2022.
  • Zhao Zhang  » Towards hybrid and explainable recommender systems mixing content analysis and collaborative filtering ». Defence planned in March 2022.

Past Phd students:

  • Adrien Dufraux « Leveraging Noisy, Incomplete, or Implicit Labels for Automatic Speech Recognition ». Defended in April 2022.
  • Halima Ramdani « Optimization e-recruitment process ». Defended December 2021.
  • Julie Budaher  » Sequential Pattern Generalization for Mining Multi-source Data ». Defended in December 2020.
  • Yacine Abboud « Fouille de motifs : entre accessibilité et robustesse ». PhD defended on 28th November 2018.
  • Benjamin Gras « Modeling atypical users in recommender systems ». PhD defended on 8th January 2018.
  • Oleksandr Palchenko « Algorithms and information technology to search similar objects in Big Data ». PhD stopped after 1 year.
  • Marharyta Aleksandrova « Matrix factorisation and contrats analysis for recommandation ». French-Ukraine PhD. PhD defended on 7th July 2017.
  • Lina Fahed « Predicting and Influencing the occurrence of events in a complex sequence ». Defended in October 2016.
  • Geoffray Bonnin « sequential approaches in recommender systems for Web navigation » Defended in November 2010.
  • Ilham Esslimani « a behavioral approach of the recommendation and social networks as a representation tool » Defended in December 2010.