Directeur de Recherche, CNRS Équipe : APR Sorbonne Université - LIP6 Boîte courrier 169 Couloir 25-26, Étage 3, Bureau 306 4 place Jussieu 75252 PARIS CEDEX 05 01 44 27 88 25
Julien.Tierny (at) nulllip6.fr https://julien-tierny.github.io
Trois doctorants (Direction de recherche / Co-encadrement)
BRUCATO Lorenzo : Analyse topologique de données en haute dimension pour la caractérisation de domaines opérationnels de conception (ODD) pour les systèmes critiques.".
CLÉMOT Mattéo : Réduction de dimension sous contraintes topologiques.
TCHITCHEK Sébastien : Métrique entre diagrammes de persistance variant dans le temps.
Huit docteurs (2019 - 2026) à Sorbonne Université
2026
TCHITCHEK Sébastien : Métrique entre diagrammes de persistance variant dans le temps.
2025
SISOUK Keanu : Barycentres de Wasserstein de Diagrammes de Persistance et Applications.
KISSI Mohamed Amine : Optimisation de la persistance pour la visualisation de données.
LE GUILLOU Ève : Analyse Topologique de Données Distribuées.
2023
PONT Mathieu : Analyse d'Ensembles de Descripteurs Topologiques.
2021
VIDAL Jules : Progressivité en Analyse Topologique de Données.
2019
SOLER Maxime : Réduction et comparaison de structures d'intérêt dans des jeux de données massifs par analyse topologique.
GUEUNET Charles : Calcul Haute Performance pour l'Analyse Topologique de Données par Ensembles de Niveaux.
Trois Postdocs passés (2015 - 2020) à Sorbonne Université
K. Sisouk, E. Tanguy, J. Delon, J. Tierny : “Robust Barycenters of Persistence Diagrams”, IEEE Transactions on Visualization and Computer Graphics, vol. 32 (4), pp. 3016-3023, (Institute of Electrical and Electronics Engineers) (2026)
E. Le Guillou, M. Will, P. Guillou, J. Lukasczyk, P. Fortin, Ch. Garth, J. Tierny : “TTK is Getting MPI-Ready”, IEEE Transactions on Visualization and Computer Graphics, vol. 30 (8), pp. 5875-5892, (Institute of Electrical and Electronics Engineers) (2024)
K. Sisouk, J. Delon, J. Tierny : “Wasserstein Dictionaries of Persistence Diagrams”, IEEE Transactions on Visualization and Computer Graphics, pp. 1-14, (Institute of Electrical and Electronics Engineers) (2023)
R. Maack, J. Lukasczyk, J. Tierny, H. Hagen, R. Maciejewski, Ch. Garth : “Parallel Computation of Piecewise Linear Morse-Smale Segmentations”, IEEE Transactions on Visualization and Computer Graphics, pp. 1-14, (Institute of Electrical and Electronics Engineers) (2023)
M. Flatken, A. Podobas, R. Fellegara, A. Basermann, J. Holke, D. Knapp, M. Kontak, Ch. Krullikowski, M. Nolde, N. Brown, R. Nash, G. Gibb, E. Belikov, S. Chien, S. Markidis, P. Guillou, J. Tierny, J. Vidal, Ch. Gueunet, J. Günther, M. Pawlowski, P. Poletti, G. Guzzetta, M. Manica, A. Zardini, J.‑P. Chaboureau, M. Mendes, A. Cardil, S. Monedero, J. Ramirez, A. Gerndt : “VESTEC: Visual Exploration and Sampling Toolkit for Extreme Computing: Urgent Decision Making Meets HPC: Experiences and Future Challenges”, IEEE Access, vol. 11, pp. 87805-87834, (IEEE) (2023)
N. Brown, R. Nash, P. Poletti, G. Guzzetta, M. Manica, A. Zardini, M. Flatken, J. Vidal, Ch. Gueunet, E. Belikov, J. Tierny, A. Podobas, W. Der Chien, S. Markidis, A. Gerndt : “Utilising urgent computing to tackle the spread of mosquito-borne diseases”, IEEE/ACM HPC for Urgent Decision Making (UrgentHPC) 2021, St. Louis, United States, pp. 36-44, (IEEE) (2021)
Ch. Garth, Ch. Gueunet, P. Guillou, L. Hofmann, J. Levine, J. Lukasczyk, J. Tierny, J. Vidal, B. Wang, F. Wetzels : “Topological Analysis of Ensemble Scalar Data with TTK”, IEEE VIS Tutorials, IEEE VIS Tutorials, New Orleans, United States (2021)
J. Lukasczyk, J. Beran, W. Engelke, M. Falk, A. Friederici, Ch. Garth, L. Hofmann, I. Hotz, P. Hristov, W. Köpp, T. Masood, M. Olejniczak, P. Rosen, J.‑T. Sohns, T. Weinkauf, K. Werner, J. Tierny : “Report of the TopoInVis TTK Hackathon: Experiences, Lessons Learned, and Perspectives”, chapter in Topological Methods in Data Analysis and Visualization VI, Mathematics and Visualization, pp. 359-373, (Springer) (2021)
J. Vidal, P. Guillou, J. Tierny : “A Progressive Approach to Scalar Field Topology”, IEEE Transactions on Visualization and Computer Graphics, vol. 27, pp. 2833-2850, (Institute of Electrical and Electronics Engineers) (2021)
J. Lukasczyk, Ch. Garth, R. Maciejewski, J. Tierny : “Localized Topological Simplification of Scalar Data”, IEEE Transactions on Visualization and Computer Graphics, (Institute of Electrical and Electronics Engineers) (2020)
T. Bin Masood, J. Budin, M. Falk, G. Favelier, Ch. Garth, Ch. Gueunet, P. Guillou, L. Hofmann, P. Hristov, A. Kamakshidasan, Ch. Kappe, P. Klacansky, P. Laurin, J. Levine, J. Lukasczyk, D. Sakurai, M. Soler, P. Steneteg, J. Tierny, W. Usher, J. Vidal, M. Wozniak : “An Overview of the Topology ToolKit”, TopoInVis 2019 - Topological Methods in Data Analysis and Visualization, Nykoping, Sweden (2019)
Ch. Gueunet, P. Fortin, J. Jomier, J. Tierny : “Task-based Augmented Contour Trees with Fibonacci Heaps”, IEEE Transactions on Parallel and Distributed Systems, vol. 30 (8), pp. 1889-1905, (Institute of Electrical and Electronics Engineers) (2019)
M. Soler, M. Plainchault, B. Conche, J. Tierny : “Topologically Controlled Lossy Compression”, IEEE Pacific Conference on Visualisation, Kobe, Japan, pp. 46-55, (IEEE) (2018)
J. Tierny, G. Favelier, J. Levine, Ch. Gueunet, M. Michaux : “The Topology ToolKit”, IEEE Transactions on Visualization and Computer Graphics, (Institute of Electrical and Electronics Engineers) (2017)
J. Lukasczyk, G. Aldrich, M. Steptoe, G. Favelier, Ch. Gueunet, J. Tierny, R. Maciejewski, B. Hamann, H. Leitte : “Viscous Fingering: A Topological Visual Analytic Approach”, Physical Modeling for Virtual Manufacturing Systems and Processes, Speyer, Germany (2017)
P. Klacansky, J. Tierny, H. Carr, Zh. Geng : “Fast and Exact Fiber Surfaces for Tetrahedral Meshes”, IEEE Transactions on Visualization and Computer Graphics, (Institute of Electrical and Electronics Engineers) (2016)
S. Philip, B. Summa, J. Tierny, P.‑T. Bremer, V. Pascucci : “Distributed Seams for Gigapixel Panoramas”, IEEE Transactions on Visualization and Computer Graphics, vol. 21 (3), pp. 350-362, (Institute of Electrical and Electronics Engineers) (2015)
D. Guenther, R. Alvarez‑Boto, J. Contreras‑Garcia, J.‑Ph. Piquemal, J. Tierny : “Characterizing Molecular Interactions in Chemical Systems”, IEEE Transactions on Visualization and Computer Graphics, vol. 20 (12), pp. 2476-2485, (Institute of Electrical and Electronics Engineers) (2014)
A. Gyulassy, D. Guenther, J. Levine, J. Tierny, V. Pascucci : “Conforming Morse-Smale Complexes”, IEEE Transactions on Visualization and Computer Graphics, vol. 20 (12), pp. 2595-2603, (Institute of Electrical and Electronics Engineers) (2014)
J.‑Ch. Michelin, J. Tierny, F. Tupin, C. Mallet, N. Paparoditis : “Quality evaluation of 3D city building Models with automatic error diagnosis”, International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, vol. XL-7/W2, TCII, III, IV, VII ISPRS2013-SSG, Antalya, Türkiye, pp. 161-166 (2013)
S. Philip, B. Summa, J. Tierny, P.‑T. Bremer, V. Pascucci : “Scalable Seams for Gigapixel Panoramas”, Eurographics Symposium on Parallel Graphics and Visualization, Girona, Spain (2013)
M. Daoudi, T. Filali Ansary, J. Tierny, J.‑Ph. Vandeborre : “3D-Mesh Models: View-Based Indexing and Structural Analysis”, Lecture Notes in Computer Science, vol. 4877, Lecture Notes in computer science, Pisa, Italy, pp. 298-307, (Springer-Verlag) (2007)
J. Tierny, J.‑Ph. Vandeborre, M. Daoudi : “Topology driven 3D mesh hierarchical segmentation”, IEEE International Conference on Shape Modeling and Applications (Shape Modeling International - SMI), Lyon, France, pp. sp (2007)
J. Tierny, J.‑Ph. Vandeborre, M. Daoudi : “Invariant High Level Reeb Graphs of 3D Polygonal Meshes”, 3rd IEEE International Symposium on 3D Data Processing, Visualization and Transmission (3DPVT'06), Chapel Hill, North Carolina, United States, pp. p (2006)