Workshop 20-11-2026 on Wavelets, Multifractals, Multiscale Analysis, Internet Traffic Monitoring, Neuroscience, Arts and more
© Patrice Abry
A one-day workshop on Wavelets, Multifractals, Multiscale Analysis, Internet Traffic Monitoring, Neuroscience, Arts and more
It is a great pleasure to invite you to a one-day workshop in honour of the scientific work of Patrice Abry, to be held at ENS de Lyon (campus Monod, salle 1 place de l'Ecole, bâtiment Condorcet) on November 20, 2026.
This workshop will celebrate over thirty years of research by Patrice Abry and his collaborators and students, and the broad impact this work has had on several different scientific communities, both in signal and image processing and through its many applications. With more than 200 papers published in leading journals and conferences, Patrice Abry has made important contributions to many fields such as wavelet and multiscale analysis, self-similarity and long-range dependence, fractal and multifractal analysis, while contributing at large to the domain of statistical signal processing.
His work on both the theory and practice of multiscale statistical signal and image analysis has led to many real-world applications, ranging from Internet traffic and turbulence in physics to financial time series, neuroscience, health (including perinatal monitoring and epidemic surveillance), climate extremes, and the scientific investigation of artworks.
This scientific and friendly day will be an opportunity to hear scientific talks by several renowned researchers who have crossed paths with Patrice Abry along his scientific trajectory.
Detailed Schedule at the end of the page : Begin at 9:30 am (and welcome with coffee from 8:45 am); end expected at around 5:30 pm
A tentative list of speakers :
- Philippe Ciuciu (CEA Neurospin, équipe CEA-Inria MIND, DataIA Institute, Paris-Saclay)
- Gustavo Didier (Mathematics Department, Tulane University, New Orleans, LA, USA)
- Patrick Flandrin (Académie des Sciences, Paris & CNRS, LP ENSL)
- Sara Franceschelli (IHRIM, ENS de Lyon et IXXI, Lyon)
- Kensuke Fukuda (National Institute of Informatics, Japan)
- Stéphane Jaffard (LAMA, Département de Mathématiques, UPEC, Créteil)
- Darryl Veitch (University of Technology, Sidney, Australia)
- a group of former students of Patrice
More interventions will be announced closer to the event, or on the day of the workshop.
Scientific organisation : Barbara Pascal (CNRS, LS2N, Nantes), Herwig Wendt (CNRS, IRIT, Toulouse), Pierre Borgnat (CNRS, LP ENSL, Lyon), Patrick Flandrin (Academie des sciences, LP ENSL, Lyon)
Local contact : send an email to pierre .dot. borgnat .at. ens-lyon.fr
Venue: the workshop will be in the Condorcet conference room, at ENS de Lyon, Campus Monod. To come, please consult the ENS de Lyon webpage for maps and direction. The room is located at 1 Place de l'école, 69007 Lyon (here on google map).
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Program :
The invited speakers will talk on the following subjects (more details to come).
- Stéphane Jaffard, Title: 22 years of collaboration with Patrice: an overview and some remaining problems
Abstract: My collaboration with Patrice started in March 2004 during a school at CIRM in Marseille, and continued untill now without interruption. It allowed us, together with several collaborators, to build mathematically well founded and numerically efficient methods for multifractal analysis. This talk will give an overview of this subject, and will also describe some intriguing topics that remain open and which, for sure, will be the subject of future fruitful collaborations.
- Patrick Flandrin, Title: "Signalman"
Abstract: La discipline du « signal » a considérablement évolué au cours des 30 dernières années. Sous des formes renouvelées, elle reste cependant marquée au sceau d’une interdisciplinarité qui a toujours été au cœur des activités de Patrice Abry. On s’appuiera sur quelques-uns des travaux de recherche de celui-ci pour en offrir une forme brève de défense et d’illustration.
- Darryl Veitch, Title: Analyses Inattendues
Abstract: En combinant l'analyse multifractale et les ruptures bayésiennes, on passe de la vraisemblance à l’invraisemblable.
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Detailed Schedule:
- 8:45 – 9:30 AM: Coffee welcome
- 9:30 AM : Welcome remarks: David Carpentier (Director or the Laboratory of Physics), Barbara Pascal, Pierre Borgnat
- 10:00 – 10:15 AM: Short interventions
- 10:15 – 10:30 AM: Patrick Flandrin, Title: "Signalman"
- 10:30 – 11:00 AM: Stéphane Jaffard, Title: 22 years of collaboration with Patrice: an overview and some remaining problems
- 11:00 – 11:30 AM: Break & Short interventions
- 11:30 AM – 12:00: Kensuke Fukuda
- 12:00 – 1:45 PM: Lunch in the Passerelle room
- 1:45 – 2:30 PM: Barbara Pascal, a presentation from former PhD students and postdocs
- 2:30 – 3:00 PM: Darryl Veitch, Title : Analyses Inattendues
- 3:00 – 3:30 PM: Break & Short interventions
- 3:30 – 4:00 PM: Gustavo Didier
- 4:00 – 4:30 PM: Philippe Ciuciu
- 4:30 – 5:10 PM: Sara Franceschelli
- 5:10 PM: Closing remarks (and reception/drinks)