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Seminar in Statistics - LARRY GOLDSTEIN
by Pierpaolo De Blasi 13 May '22

13 May '22

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Mercoledi 18 Maggio 2022, alle ore 12.00, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ Speaker: *Larry Goldstein* (University of Southern California) Title: *Relaxing Gaussian assumptions in high dimensional statistical procedures* Abstract: The assumption that high dimensional data is Gaussian is pervasive in many statistical procedures, due not only to its tail decay, but also to the level of analytic tractability this special distribution provides. We explore the relaxation of the Gaussian assumption in Single Index models and Shrinkage estimation using two tools that originate in Stein’s method: Stein kernels, and the zero bias transform. Taking this approach leads to measures of discrepancy from the Gaussian that arise naturally from the nature of the procedures considered, and result in performance bounds in contexts not restricted to the Gaussian. The resulting bounds are tight in the sense that they include an additional term that reﬂects the cost of deviation from the Gaussian, and vanish for the Gaussian, thus recovering this particular special case. Joint work with: Xiaohan Wei, Max Fathi, Gesine Reinert, and Adrien Samaurd ------------------------------------------------ In ottemperanza alle norme anti Covid, per partecipare in presenza è necessario prenotarsi tramite il seguente form online: https://forms.gle/1t3aC3D1Q6Pr9J5y8 Sarà possibile seguire il seminario anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/83134413513?pwd=ZjZ3TkJub0VZYm0wR213OXR0SmhnUT09> Meeting ID: 831 3441 3513 Passcode: 653689 Il seminario è organizzato dalla "de Castro" Statistics Initiative www.carloalberto.org/stats -- Pierpaolo De Blasi University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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Fwd: probability opening
by Faggionato, Alessandra 13 May '22

13 May '22

Ricevo ed inoltro. Saluti Alessandra ---------- Forwarded message --------- From: Christian Maes <christian.maes(a)kuleuven.be> Date: Mon, 9 May 2022 at 10:04 Subject: probability opening To: Christian Maes <christian.maes(a)kuleuven.be> Dear Colleagues i hope this finds you well. Here is an announcement for a job vacancy <https://www.kuleuven.be/personeel/jobsite/jobs/60115431?hl=en&lang=en> at the KU Leuven, *Research professor in Mathematical Analysis, Probability Theory and Random Matrices * https://www.kuleuven.be/personeel/jobsite/jobs/60115431?hl=en&lang=en I would much appreciate you consider forwarding it to interested people, especially to mathematicians who like to be inspired by physics as well. thanks, chr -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Lecturer\Senior Lecturer and PhD positions at Imperial College
by Passeggeri, Riccardo 13 May '22

13 May '22

Dear all, my name is Riccardo Passeggeri and I am a Lecturer (Assistant Professor) in the Department of Mathematics at Imperial College London. There is an open position for Lecturer/Senior Lecturer in Statistics (broadly defined), see the post for details https://www.imperial.ac.uk/jobs/description/NAT01133/lecturersenior-lecture… Moreover, there is an open PhD position in my group, see my website for details https://sites.google.com/site/riccardopasseggeri If you have any questions, please do not hesitate to contact me. Thank you. Best Regards, Riccardo

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Seminario di Michele Aleandri alla Sapienza
by Faggionato, Alessandra 12 May '22

12 May '22

Buongiorno sotto l'annuncio del seminario di Michele Aleandri alla Sapienza. Grazie Saluti Alessandra %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Mercoledì 18 Maggio, ore 16, Sala di Consiglio, Sapienza Università di Roma SPEAKER: Michele Aleandri (Sapienza Università di Roma) TITOLO: Opinion dynamics: conformist and nonconformist interacting agents ABSTRACT: We study two models of binary decisions in a connected network of interacting agents. Individual decisions are determined by social influence, coming from direct interactions with neighbours, and a group level pressure that accounts for social environment. We study the convergence of the mean field variables associated to the processes as the number of agents goes to infinity and we show that propagation of chaos occurs. In the first model, [2], we have a family of conformist or nonconformist agents that interact with each other. When the number of agents is large but fixed, we study the amount of time spent by the mean field variables associated with the process around the stable points of the macroscopic dynamics. In a nonconformist environment, there is a persistent disordered phase where no majority is formed: We show how in this case the introduction of a delay mechanism in the agent’s detection of the global average choice may drastically change this scenario, giving rise to a coordinated self sustained periodic behavior. In the second model, [1], the population is divided into two social groups, each one characterized by its attitude with respect to the other. Agents of the same group interact with each other, while the other group exerts on them a social influence, that may also be null or even negative. We focus in particular on models with Lotka-Volterra type interactions, i.e., models with conformist vs. nonconformist groups. For these models, although the microscopic system is driven a.s. to consensus within each group, a periodic behaviour arises in the macroscopic scale. In order to describe fluctuations between the limiting periodic orbits, we identify a slow variable in the microscopic system and, through an averaging principle, we find a diffusion which describes the macroscopic dynamics of such variable on a larger time scale. [1] Aleandri, M., Minelli, I.G. Opinion dynamics with Lotka-Volterra type of interactions. Electronic Journal of Probability, 24(2019), no.122, 1-31. [2] Aleandri, M., Minelli, I.G. Delay-Induced Periodic Behaviour in Competitive Populations. Journal of Statistical Physics (2021) 186:6 -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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Seminar by Luca Sitzia (UniCredit) in Padova
by Giorgia Callegaro 11 May '22

11 May '22

Dear all, we are happy to announce the following seminar of the cycle "Probability and Finance Seminars" of the Mathematics Department in Padova, which will be given in presence (Torre Archimede, Padova, see below) and online (Via Zoom, see below): * *Speaker*: Luca Sitzia (UniCredit) * *Title*: *A neural network approach for the estimation of mortgage prepayment rates * * *Where: *sala riunioni 701 Torre Archimede, Padova ** When*: 27th May 2022, 4.30 pm. For more details and to get the Zoom link please visit the webpage: https://www.math.unipd.it/~bianchi/seminari/ Hope to see you there, best, Giorgia Callegaro, Marco Formentin and Alessandra Bianchi -- Giorgia Callegaro Associate Professor Department of Mathematics - University of Padova Via Trieste 63 , I-35121 Padova - ITALY Tel: +39-0498271481 Fax: +39-0498271499 E-Mail: gcallega(a)math.unipd.it <https://webmail.math.unipd.it/horde3/imp/message.php?mailbox=Sent&index=598#> Personal web-page: https://sites.google.com/site/giogiocallegaro/Home

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Fwd: Workshop "Junior Female Researchers in Probability", Berlin, Oct 5-7
by Luisa Andreis 11 May '22

11 May '22

Care colleghe e cari colleghi, Vi inoltro l’annuncio per del workshop "Junior Female Researchers in Probability", che si terrà a Berlino ad ottobre e vi prego di diffonderlo con chiunque crediate possa essere interessata. Cordiali saluti, Luisa Andreis —————————————————— Dear colleagues, we would like to draw your attention to the fourth workshop for "Junior female researchers in probability”, 5-7 October 2022. The aim of this workshop is to promote young female researchers by giving them an opportunity to present their own work, build a network and hear distinguished mathematicians who can inspire them to pursue a fulfilling career in probability. Keynote speakers: Sylvie Méléard (École Polytechnique) Silke Rolles (TU Munich) Invited speakers: Alessandra Bianchi (Padova) Lisa Hartung (Mainz) Alexandra Neamtu (Konstanz) Kim Weston (Rutgers) The workshop is planned as an in-person event in Berlin. We warmly invite those who identify as female to submit abstracts for contributed talks, and apply for financial support for traveling to Berlin in case we can have a hybrid event. However, please be aware that being unable to travel should not restrain from submitting an abstract. There are special travel grants for female master students interested in gaining some insight into research and getting in touch with researchers. Of course everybody is very welcome to participate, but presentations and financial support are reserved for female participants. Deadline for submission of abstracts and funding requests: June 30, 2021. Please pass this information on to interested master students, PhD students and postdocs as well as your colleagues! More details can be found on our website: https://www.google.com/url?q=https://www.wias-berlin.de/workshops/JFRP22/&s… <https://www.google.com/url?q=https://www.wias-berlin.de/workshops/JFRP22/&s…> Best regards, Peter Bank, Dörte Kreher, Laura Körber, Helena Kremp, Alexandra Quitmann, Isabell Vorkastner, Weile Weng, and Maite Wilke-Berenguer

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Seminario Martin Friesen, domani ore 16:00
by Michele Coghi 11 May '22

11 May '22

Cari colleghi, vi annunciamo il prossimo talk nel ciclo "Trento Probability Seminars" *Asymptotics of stochastic Volterra equations* *Luogo:* l'evento si terrà in presenza in Aula Seminari "-1" a Povo0 e per via telematica attraverso collegamento alla piattaforma Zoom. Per partecipare sarà necessario collegarsi al link seguente ed inserire i codici di accesso (da condividere solo con contatti fidati): https://unitn.zoom.us/j/86014416487 Meeting ID: 860 1441 6487 Passcode: 809071 *Data:* Giovedì 12 maggio *Ore:* 16:00 *Relatore:* - *Martin Friesen* (Dublin City University) *Abstract: *In this talk, we review recent results on the long-time behavior, that is limiting distributions and stationary processes, for stochastic Volterra equations in finite and infinite dimensions. These include the Volterra Ornstein-Uhlenbeck process, affine processes, and Volterra stochastic partial differential equations. Saluti, Michele

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Deadline approaching: A day on random graphs
by mic sal 11 May '22

11 May '22

Dear all, this is to remind you that the deadline for the (free but compulsory) registration to the workshop "A day on Random Graphs" is on the 15th of May. Should you miss the deadline, you can write to salvi(a)mat.uniroma2.it to check if there is still place available. The workshop will take place at Università di Tor Vergata on the 30th of May (see poster in attachment) and is part of the Excellence Program Math@TOV. The invited speakers are Luca Avena (Leiden University) Afonso Bandeira (ETH Zürich) Luca Becchetti (La Sapienza) Julia Komjathy (TU Delft) Luca Trevisan (Bocconi) For more information see http://www.mat.uniroma2.it/~rds/graphs.php . The organizers, Andrea Clementi, Domenico Marinucci, Michele Salvi, Stefano Vigogna

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Seminar in Pisa: Darrick Lee
by Francesco Grotto 10 May '22

10 May '22

Dear Colleagues, we would like to invite you to the following seminar by Darrick Lee (EPFL) to be held tomorrow (May 10th) at Dipartimento di Matematica in Pisa and online via Google Meets. The organizers, A. Agazzi and F. Grotto -------------------------------------------- Location: Sala Seminari, Dipartimento di Matematica, Pisa Google Meet Link: https://meet.google.com/gji-phwo-vbg Time: May 10th, 2022, 14:00-15:00 CET Speaker: Darrick Lee (EPFL) Title: Mapping Space Signatures Abstract: The path signature is a foundational tool in the theory of rough paths. In this talk, we introduce the mapping space signature, a generalization of the path signature to maps from higher dimensional cubical domains, which is motivated by the topological perspective of K. T. Chen. We show that the mapping space signature shares many of the analytic and algebraic properties of the path signature; in particular it is universal and characteristic with respect to a certain equivalence relation on cubical maps. This is joint work with Chad Giusti, Vidit Nanda, and Harald Oberhauser.

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Workshop on Chemical Reaction Networks at Politecnico
by Daniele Cappelletti 09 May '22

09 May '22

Dear all, As announced in a previous email, Politecnico di Torino is organizing the second edition of the *Workshop on Chemical Reaction Networks*, 6-8 July, 2022, Torino, Italy. We are writing to inform you that *the deadline for* *the registration is extended to May 22nd*. You can find more info on the topics covered and on the logistics of the workshop at https://areeweb.polito.it/disma-excellence/events_2022/CRNs_workshop <https://areeweb.polito.it/disma-excellence/events_2022/CRNs_workshop/index.…> Sorry for cross-posting and please forward this info to all potentially interested people you may know, especially to the youngest. With kindest regards, the organizers Daniele Cappelletti Enrico Bibbona Paola Siri

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