Welcome to the webpage of the TORI Workshop!
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About
The TORI workshop is an invitation-only, retreat-style (Dagstuhl-like) workshop on topological methods for data analysis and visualization. It is funded by the ERC project TORI and organized to mark the end of this project. Its goal is to summarize and communicate around the major results of the community over the last five years in the fields of topological data description and analysis, and to discuss the most vibrant perspectives for the future.
Format
The event is organized as a 3.5 day workshop. Each day starts with a distinct distinguished keynote. The rest of the day is organized around three 1-hour sessions of short talks (typically, three talks of 15 minutes), with several 1-hour breakouts, to favor informal discussions, meetups and relaxation. Lunches and dinners would be provided on site, to also contribute to a friendly and collaborative atmosphere.
Location
The workshop will take place at the hotel Le Carnot in Wimereux, a beautiful and historical seaside resort on the Opal Coast (in the north of France, pictures below).
Dates
June 30, 2026 to July 3, 2026.
Keynote speakers
- Herbert Edelsbrunner, Institute of Science and Technology, Austria.
- Edmund Harriss, University of Arkansas, USA.
- Facundo Mémoli, Rutgers University, USA.
- Valerio Pascucci, University of Utah, USA.
Confirmed invited speakers
- Henry Adams, University of Florida, USA.
- Talha Bin Masood, Linköping University, Sweden.
- Wojciech Chachólski, KTH Royal Institute of Technology, Sweden.
- Mattéo Clémot, Université Lyon 1, France.
- Christoph Garth, RPTU Kaiserslautern-Landau, Germany.
- Sylvain Gerbaud, CNRS and Sorbonne University, France.
- Tim Gerrits, RWTH Aachen University, Germany.
- Pierre Guillou, Mines Paris, France.
- Ingrid Hotz, Linköping University, Sweden.
- Federico Iuricich, Clemson University, USA.
- Mohamed Kissi, CNRS and Sorbonne University, France.
- Eve Le Guillou, Technical University of Munich, Germany.
- Vadim Lebovici, Sorbonne University, France.
- Joshua A. Levine, University of Arizona, USA.
- Théophane Loloum, CEA, France.
- Jonas Lukasczyk, RPTU Kaiserslautern-Landau, Germany.
- Leland McInnes, Tutte Institute for Mathematics and Computing, Canada.
- Elizabeth Munch, Michigan State University, USA.
- Vijay Natarajan, Indian Institute of Science, India.
- Tim Ophelders, TU Eindhoven, Netherlands.
- Nina Otter, INRIA, France.
- Mathieu Pont, RPTU Kaiserslautern-Landau, Germany.
- Vanessa Robins, Australian National University, Australia.
- Paul Rosen, University of Utah, USA.
- Florian Russold, TU Graz, Austria.
- Grégoire Sergeant-Perthuis, Sorbonne University, France.
- Keanu Sisouk, CNRS and Sorbonne University, France.
- Martin Skrodzki, TU Delft, Netherlands.
- Katharine Turner, Australian National University, Australia.
- Kelin Xia, Nanyang Technological University, Singapore.
Schedule
Monday, June 29, 2026
8:00pm Welcome dinner
Tuesday, June 30, 2026
8:45 Opening
9:00 Keynote
- Herbert Edelsbrunner.
- Session chair: Henry Adams.
10:00 Coffee break
10:30 Talks
- Henry Adams: The theory of Vietoris-Rips complexes
- Wojciech Chachólski. TBA
- Nina Otter. Dimensions in persistence and beyond
- Session chair: Joshua A. Levine.
11:30 Break & Informal discussions
12:00pm Lunch
2:00pm Break & Informal discussions
3:00pm Talks
- Tim Gerrits: Exploring Uncertain Topology in Second-Order Tensor Field Ensembles
- Federico Iuricich: Distributed TDA Without Distributed Programming
- Talha Bin Masood: Multifield Topological Analysis: Methods, Applications, and Open Challenges
- Session chair: Vanessa Robins.
4:00pm Coffee break
4:30pm Talks
- Tim Ophelders: Locally Correct Interleavings Between Merge Trees
- Paul Rosen: Human-Centered TDA: Improving the Interpretability of TDA
- Joshua A. Levine: Computing Discrete Vector Fields Efficiently and with Correct Critical Points
- Session chair: Kelin Xia.
5:30pm Break & Informal discussions
7:30pm Dinner
Wednesday, July 1, 2026
8:30 Keynote
- Valerio Pascucci. TBA
- Session chair: Julien Tierny
09:30 Talks
- Pierre Guillou: Discrete Morse Sandwich: Fast Computation of Persistence Diagrams
- Eve Le Guillou: Distributed Topological Data Analysis in TTK
- Jonas Lukasczyk: Towards a Taxonomy for Topology-Based Feature Tracking in Time-Varying Piecewise-Linear Scalar Fields
- Session chair: Wojciech Chachólski.
10:30 Coffee break & Informal discussions
12:00pm Lunch
1:45pm Talks
- Ingrid Hotz. TBA
- Vanessa Robins: A brief introduction to the Reduced Vietoris-Rips filtration for computing persistent homology
- Christoph Garth: Explaining Stability in Merge Tree Edit Distances
- Session chair: Federico Iuricich.
2:45pm Coffee break
3:00pm Talks
- Leland McInnes: Persistent Homology in High Dimensions and Dimension Reduction
- Mattéo Clémot. TBA
- Martin Skrodzki: Illustrating Mathematics and Mathematics for Illustration
- Session chair: Vijay Natarajan.
4:20pm Local visit
7:30pm Dinner
Thursday, July 2, 2026
9:00 Keynote
- Facundo Mémoli: Grassmannian Persistence Diagrams
- Session chair: Katharine Turner.
10:00 Coffee break
10:30 Talks
- Vijay Natarajan: Analyzing Time-varying Scalar Fields using Morse-Cerf Theory
- Mathieu Pont: Analysis of Ensembles of Topological Descriptors
- Keanu Sisouk: Wasserstein Barycenters of Persistence Diagrams and Applications
- Session chair: Elizabeth Munch.
11:30 Break & Informal discussions
12:00pm Lunch
2:00pm Break & Informal discussions
3:00pm Talks
- Katharine Turner: Vineyard Modules: my slant on multiparameter persistence
- Elizabeth Munch: Canopies for Parameterized Persistence, or: How I learned to stop worrying and love the diagonal
- Vadim Lebovici: Integral geometry of subanalytic sets
- Session chair: Christoph Garth.
4:00pm Coffee break
4:30pm Talks
- Kelin Xia: Mathematical AI: from topological data analysis to topological deep learning
- Florian Russold: Computing Projective Implicit Representations from Poset Towers
- Grégoire Sergeant-Perthuis: Sheaves in Machine Learning
- Session chair: Paul Rosen.
5:30pm Break & Informal discussions
7:30pm Dinner
Friday, July 3, 2026
9:00 Capstone
- Edmund Harriss: When the math is the data, experiences illustrating mathematics
- Session chair: Martin Skrodzki.
10:00 Coffee break
10:30 Talks
- Mohamed Kissi: Persistence Optimization for Data Visualization
- Théophane Loloum. TBA
- Sylvain Gerbaud. TBA
- Session chair: Ingrid Hotz.
11:30 Closing & Informal discussions
Travel
From Paris (or Paris Charles de Gaulle Airport), traveling by train is the easiest way to reach Wimereux.
Please visit the website of the French national railroad company (SNCF) and enter “Wimereux” as your destination. From Paris, expect a journey of 3 to 4 hours, with a connection in Lille, followed by a second connection in Boulogne-sur-Mer.
Once you arrive at Wimereux train station, the workshop venue is within walking distance (approximately a 10-minute walk). See these Google map directions.
If you have any travel related questions, please feel free to reach out to the workshop organizers.
Pictures
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