Author: Henry Adams

Dear colleagues,

We are excited to launch a collaborative series between the Applied Algebraic Topology Research Network (AATRN) and the Statistical Thermodynamics & Molecular Simulations (STMS). Each event will feature two speakers, one from the STMS community and one from the AATRN community. Both speakers, however, have interests within the purview of the other community, i.e., mathematicians who work on problems that are relevant to theoretical and computational chemistry, and statistical thermodynamicists who develop and use tools from applied mathematics. As such, the intent is to enhance discussions and collaborations between the two communities. Each seminar will comprise of two 25-minute talks (one from each community) followed by questions and discussions. 

We will have four seminars on the four Fridays of October. Our first seminar will be on Friday, October 7, 2022, 10:45 AM-12:00 PM Eastern Daylight Time. Our speakers will be Prof. Titus van Erp (Norwegian University of Science and Technology) and Prof. Jose Perea (Northeastern University). At the following link, you can find their abstracts and speaker bios. You must register for the event at the following link, after which you will receive the Zoom information:

https://lu.ma/AARTN-STMS-10072022-vanErp-Perea

We would also like to bring to your attention our website that has our full schedule:

STMS: https://sites.google.com/view/stms2021/home

Schedule: https://sites.google.com/view/stms2021/schedule 

AARTN: https://www.aatrn.net

Friday October 7; 10:45am EDT, Titus van Erp; 11:15am EDT, Jose Perea

Friday October 14; 10:45am EDT, Liz Munch; 11:15am EDT, Claire Adjman

Friday October 21; 10:45am EDT, Erik Santiso; 11:15am EDT, Jie Liang

Friday October 28; 10:45am EDT, Yusu Wang; 11:15am EDT, Reid van Lehn

We look forward to seeing you virtually at these events. Please feel free to pass along this information to anybody who might be interested.

Regards, Henry Adams, Aurora Clark, Amir Haji-Akbari, Sapna Sarupria, Kelin Xia

Please see the program webpage: https://www.msri.org/programs/353

August 21, 2023 to December 20, 2023

This program aims to bring together researchers working at the interface of fairness and computation. This interface has been the site of intensive research effort in mechanism design, in research on partitioning problems related to political districting problems, and in research on ways to address issues of fairness and equity in the context of machine learning algorithms.

These areas each approach the relationship between mathematics and fairness from a distinct perspective. In mechanism design, algorithms are a tool to achieve outcomes with mathematical guarantees of various notions of fairness. In machine learning, we perceive failures of fairness as an undesirable side effect of learning approaches, and seek mathematical approaches to understand and mitigate these failures. And in partitioning problems like political districting, we often seek mathematical tools to evaluate the fairness of human decisions. This program will explore progress in these areas while also providing a venue for overlapping perspectives.

The topics workshop “Randomization, neutrality, and fairness” will explore the common role randomness and probability has played in these lines of work.

Organizers: Vincent Conitzer (Duke University), Moon Duchin (Tufts University), Bettina Klaus (Université de Lausanne), Jonathan Mattingly (Duke University), Wesley Pegden (Carnegie Mellon University)

Hi,
Journal of Applied and Computational Topology will be having a special issue on Random Topology.  This special issue will group together a variety of topics at the intersections of Topology, Probability, Combinatorics, and Statistics, with the aim of highlighting recent developments in Random Topology and related fields.  The deadline for paper submission is December 31, 2022.  However papers will be refereed as and when they are received.  In case you have a suitable paper,  please do consider submitting here.  Also if you have colleagues who may be interested,  please do forward them the email as well.  
Thanks.  
Cheers,  D. Yogeshwaran.  

The thematic quarter at Institut Henri Poincaré (IHP, Paris) on Geometry and Statistics in Data Sciences, has now started! Its program extends throughout Fall, until December. For the most part, the events will be broadcast online.
Mini-courses and long courses

The invited professors, resident at IHP, will give both mini-courses (~2x1h30) and long courses (~10 lectures throughout Fall), at a research/Masters level.

• Optimal Transport (Quentin Mérigot)
• Embedding for Data Analysis : Multidimensional Scaling and Manifold Learning (Ery Arias-Castro & Eddie Aamari)
• Geometry of Shape Spaces of Curves and Surfaces (Eric Klassen)
• Statistical Topological Data Analysis (Wolfgang Polonik)
• Asymptotic Analysis of Statistics of Random Geometric Structures (Joseph Yukich)
• A Few Applications of Geometric Measure Theory to Shape Analysis (Nicolas Charon)
• Mathematical Aspects of Deep Learning (Mikhail Belkin)
• Some Theoretical Aspects of Graph Neural Networks and Higher Order Variants (Yusu Wang)
• Topological Approaches to Neuroscience (Kathryn Hess)
• Riemannian Geometry on Lie Groups (Stephen Preston)

The complete program is available here.

Three one-week conferences

• Non linear and high-dimensional inference (3-7 October)
• Geometry, topology and statistics in data science (10-14 October)
• Measure-theoretic approaches and optimal transport (21-25 November)

Registration, to each conference separately, is free but compulsory. 
Please check “Remote participation” when registering if you want to attend online.

Hackathon

• Open contributions to the library Geomstats (17-21 October)

Associated events

• Maths-industry day with AMIES (8 November)
• Popularization day (TBA)

Although these events will be broadcast online, we hope to see you many at IHP during the upcoming weeks.

The organizing committee,Eddie Aamari, Catherine Aaron, Frédéric Chazal, Aurélie Fischer, Marc Hoffmann, Alice Le Brigant, Clément Levrard et Bertrand Michel

Dear colleagues,

The Applied Algebraic Topology Research Network (AATRN) is hosting our third annual interview series, featuring:

Frédéric Chazal interviewed by Steve Oudot – Sep 14, 2022, 11am Eastern

Konstantin Mischaikow interviewed by Tomas Gedeon – Oct 26, 2022, 11am Eastern

Yusu Wang interviewed by Tamal Dey – Dec 7, 2022, 11am Eastern

Claudia Landi interviewed by Barbara Giunti – Feb 1, 2023, 11am Eastern

Leonidas Guibas interviewed by Primoz Skraba – June 21, 2023, 11am Eastern

For the Zoom coordinates, please join the AATRN mailing list by visiting https://groups.google.com/g/aatrn, or email the AATRN directors at aatrn.director@gmail.com.

You may find recordings of our prior interviews and other videos at https://www.youtube.com/c/AppliedAlgebraicTopologyNetwork.

Best, the AATRN directors
Henry Adams, Hana Dal Poz Kouřimská, Teresa Heiss, Sara Kalisnik, Bastian Rieck, Elchanan Solomon
https://www.aatrn.net

Dear Colleagues, 

This is the final reminder for the online workshop Bridging Applied and Quantitative Topology, that will take place virtually during the week of May 9-13, Monday to Friday, 2022:

https://sites.google.com/view/applied-quantitative-topology/

Topics of interest include Vietoris-Rips complexes, nerve lemmas, manifold reconstruction, Kuratowski embeddings, metric thickenings, the tight span, the filling radius, Gromov-Hausdorff distances, optimal transport, homotopies of bounded size, geometric group theory, topological combinatorics, geometric topology, etc., and this is far from an exhaustive list. This workshop is co-hosted by the Applied Algebraic Topology Research Network (AATRN) and the TGDA Group at The Ohio State University.

A list of speakers, titles, and abstracts is available at 

https://sites.google.com/view/applied-quantitative-topology/.

Most days of the workshop will consist of three 35 minute long talks (in 50-minute slots), 8am-11am Eastern Daylight Time (UTC-4). Each talk will be followed by a discussion period intended to foster a productive conversation between the speaker and the audience. Registration is not needed in order to attend the workshop.

A zoom link for the workshop is available upon emailing aatrn.director”at”gmail.com

In addition to invited talks, there will be a virtual poster session on Wednesday, May 11, at 9am Eastern Daylight Time (UTC-4), at a Wonder.Me link which you may get upon emailing A zoom link for the workshop is available upon emailing aatrn.director”at”gmail.com.

You can find the poster presentation titles and abstracts at

https://sites.google.com/view/applied-quantitative-topology/home/postersession.

We hope to see you there!

The organizers,

Henry Adams, Johnathan Bush, Sunhyuk Lim, and Facundo Mémoli

A message from Yu-Min Chung:
========================

Dear TDA Community, 
Our team is looking for an Advisor position.  This position is equivalent to Research Scientist on the market.  The main responsibilities are to develop and/or implement AI/ML algorithms.  Our team has a diverse background including TDA and appreciate candidates with mathematical backgrounds.  If you know any recent grad or postdoc who might be interested in, please help pass the information.  Thank you!   Please use the link below to find more information and to apply.
https://lilly.wd5.myworkdayjobs.com/LLY/job/US-Indianapolis-IN/Research-Scientist—AADS_R-23269

Please feel free to contact me at yumchung@alumni.iu.edu if you have any questions.
Sincerely,
Yu-Min Chung, Ph.D., AI/ML Advisor, Eli Lilly and Company

I’m very pleased to announce the VSU-CBMS Conference on Topological Data Analysis and Persistence Theory, which will take place August 8–12, 2022 at Valdosta State University (GA, USA).   

This conference features Dr. Peter Bubenik (U. of Florida), who will give a series of daily lecturers on TDA and Persistence Theory. 

Conference website: https://blog.valdosta.edu/vsu-cbms-conference/ 

Please direct any questions to Dr. Jose A. Velez (javelezmarulanda@valdosta.edu) or myself (svault@valdosta.edu). 

Deadline for registration: April 29th

Thank you! 

=Shaun Ault

 Department of Mathematics

Valdosta State University

Dear Colleagues, 

We are happy to announce the online workshop Bridging Applied and Quantitative Topology, to take place virtually during the week of May 9-13, Monday to Friday, 2022:

https://sites.google.com/view/applied-quantitative-topology/

Topics of interest include Vietoris-Rips complexes, nerve lemmas, manifold reconstruction, Kuratowski embeddings, metric thickenings, the tight span, the filling radius, Gromov-Hausdorff distances, optimal transport, homotopies of bounded size, geometric group theory, topological combinatorics, geometric topology, etc., and this is far from an exhaustive list. This workshop is co-hosted by the Applied Algebraic Topology Research Network (AATRN) and the TGDA Group at The Ohio State University.

Most days of the workshop will consist of three 35 minute long talks (in 50-minute slots), 8am-11am Eastern Daylight Time = 2pm-5pm Central European Summer Time. Each talk will be followed by a discussion period intended to foster a productive conversation between the speaker and the audience.

In addition to invited talks, there will be a virtual poster session on Wednesday, May 11, at 9am Eastern Daylight Time = 3pm Central European Summer Time. Early career researchers are especially encouraged to participate. The registration form to contribute to the poster session will be open until Wednesday, April 20, at the following link: https://forms.gle/ZbpTKJCBRntSJavW7.

A list of confirmed speakers is available at 

https://sites.google.com/view/applied-quantitative-topology/

We hope to see you there!

The organizers,

Henry Adams, Johnathan Bush, Sunhyuk Lim, and Facundo Mémoli

Dear all,

We are organizing a single day online workshop, titled Algebraic Combinatorics and Category Theory in Topological Data Analysis. This will take place on Saturday, March 12, 2022. This workshop is a substitute for a special session in the cancelled AMS Spring Southeastern Sectional Meeting. The webpage is https://sites.google.com/view/tda-alg-combi-cat/home

We plan to start at 8:50am Eastern Time (= 2:50pm Central European Time). Zoom coordinates and a detailed timetable will be released on the webpage several days beforehand. We hope to meet many friends and colleagues on March 12!

Best wishes,

Woojin Kim, Alex McCleary, Facundo Mémoli, and Amit Patel.