I am currently Maitre de Conférences (Associate Professor) at the University of Toulouse 1 Capitole and I am a member of the IRIT lab (SIG team). I am also an external member of the LI of the University of Tours where I received my PhD in 2013.

My research topic is mainly focused on the field of database analysis, in particular: recommender and personalization systems, similarity measures, log mining, datawarehouses, OLAP. I had also the opportunity to work on use cases of data mining algorithms (especially frequent patterns) applied for cultural heritage and logs of car configurations. I am also interested in the hadoop systems.

A resume is available here (in french).

Last Events

  • New accepted paper in CAiSE 2017 conference User Interests Clustering in Business Intelligence Interactions

Teaching activities

I give my courses at the University Toulouse 1 Capitole (mainly on the computer science faculty)

  • Programming Language (Visual Basic), Bachelor MIASH-TI, since 2017
  • Optimization for multidimensional databases (SQL Server and Oracle) Master 2 ISIAD, since 2016
  • Big data Analytics (Hadoop/MapReduce, Spark, Neo4j) Master 2 ISIAD, since 2016)
  • Decision Support Systems (Access, Excel, Business Object) Master 1 IM, in 2016
  • Decision Support Systems (Excel, VBA) Bachelor AES, in 2016

Research activities

PhD thesis supervision
  • Gabriel Ferrettini, co-supervised with Chantal Soulé-Dupuy, since 2017
  • Franck Boizard, co-supervised with INSERM and Olivier Teste, since 2016

Post-Doc supervision
  • Philippe Roussille, co-supervised with Chantal Soulé-Dupuy, between February and July 2017

Program Committee

Journal reviews
  • IEEE Transactions on Knowledge and Data Engineering, 2018
  • Distributed and Parallel Databases, 2018
  • Information Systems, 2017
  • Knowledge and Information Systems, 2017
  • Information Systems Frontiers, 2016

Organizing Committee
  • Inforsid'2017, Francophone conference in Computer Science
  • EDA'2013, Francophone conference in Datawarehouse & OLAP



Here is my list of publications :

PhD Thesis


Chapter of Book

  • Summarizing and querying logs of OLAP queries
    • Julien Aligon, Patrick Marcel and Elsa Negre
    • In AKDM-3, Advances in Knowledge Discovery and management, vol. 3,post-proceedings of EGC 2011, Studies in Computational Intelligence, Springer. 2013

International Conferences

International Workshops

National Conferences


Université Toulouse 1 Capitole

Bureau ME306
Tel: +33 5 61 12 85 87
Mail: julien.aligon (at)


Bureau 321
Tel: +33 5 61 55 69 44
Mail: julien.aligon (at)