April 2023 - Random - Mailing list — Dipartimento di Matematica, UniPI

Seminario di Gérard Letac, Giovedì 27 Aprile, Sapienza Università di Roma
by Silvestri, Vittoria 23 Apr '23

23 Apr '23

Segnalo il seguente seminario, che si terrà Giovedì prossimo in Sapienza. Notare il giorno e l'aula inusuali. *Giovedì 27 Aprile, ore 14:00* Aula L, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Gérard Letac (Paul Sabatier University - Toulouse III) *Title: *From the Matsumoto Yor observation to stationary measures for a discrete KdV model *Abstract: *Let F(x,y)=(u,v) from R2 into itself such that F∘F(x,y)=(x,y). The discrete Korteweg-de Vries model associated to F considers two dimensional vectors (x tn,ytn) indexed by (t,n)∈Z2 submitted to (xtn,ytn)=F(xt−1n,ytn−1). In the particular case F(x,y)=(y−1−(x+y)−1,(x+y)−1), by considerations on Brownian motion, Matsumoto-Yor in 1999 have found laws of independent random variables X,Y such that U,V defined by F(X,Y)=(U,V) are independent, obtaining stationary measures on the KdV model. In an extraordinary paper, Croydon and Sasada (2021) have generalized this result to the surprizing F(x ,y)=(yβxy+1αxy+1,xαxy+1βxy+1). The lecture will prove that if X,Y are independent and such that U,V=F(X,Y) are also independent, then the laws of X and Y are indeed the generalized Gaussian distributions discovered by Croydon and Sasada. This is joint work with Jacek Wesolowski (arXiv 2203.05404). *Nota*: Sul sito del dipartimento il seminario è, ad oggi, annunciato per le 17:00 (in Aula II), ma si terrà alle 14:00 (in Aula L), come annunciato in questa email. La pagina è in corso di aggiornamento. ******************************** Vittoria Silvestri Assistant Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************

1 0

Seminar@UNIBO - ROSANNA GRASSI
by Fabrizio Lillo 22 Apr '23

22 Apr '23

*Tuesday May 2nd, 2023 12:00* *– 13:00* Dipartimento di Matematica, Università di Bologna Aula Seminario II, Piazza di Porta San Donato 5, Bologna Prof. Rosanna Grassi, Università degli Studi di Milano-Bicocca *Title: Higher order assortativity for directed weighted networks and Markov chains* Abstract: Assortativity is a global indicator that provides meaningful insights about the network structure. In the classical definition, the assortativity is a global measure based on the Pearson correlation between the degrees of nodes. This definition can be extended into two different directions. On the one side, one can consider other quantitative attributes of the nodes different from the degree; on the other side, one can move from the adjacency of the nodes – which is the basis of Newman’s degree-degree assortativity – and propose more general ways to connect them. We provide a generalized concept of the assortativity measure for directed and weighted networks, moving beyond the adjacency relations in both directions. The proposed concept is formulated on a node attribute that is not necessarily the degree or strength, and nodes are connected through walks or paths. In this way, we totally extend the assortativity definitions provided in the literature until now. We provide an empirical application of these measures for the paradigmatic case of the trade network. Interestingly, this interpretation of the higher-order assortativity measure allows stating a natural bridge between complex networks and stochastic processes. In so doing, we are able to move from the information content of the higher order assortativity of a network to the dynamical properties of the underlying Markov chain. Specifically, the temporal dimension of the network and the regularities captured by the autocorrelation – which are hidden in the network structure – become clear in moving to the Markov chain theory. ---------------------------------------- Fabrizio Lillo Dipartimento di Matematica, Università di Bologna Scuola Normale Superiore, Pisa ITALY Personal website: fabriziolillo.wordpress.com University website: www.unibo.it/sitoweb/fabrizio.lillo <http://fabriziolillo.wordpress.com/> phone: +39 050509159

1 0

Postdoc positions
by Franco Flandoli 21 Apr '23

21 Apr '23

Dear colleagues, I am currently advertising two two-year Postdoc positions under the ERC advanced grant NoisyFluid, at Scuola Normale Superiore, in Pisa. Deadline for application: May 15 2023. The call is published at the link: https://amministrazionetrasparente.sns.it/bando/modelli-stocastici-della-tu… Information about the local research group on stochastic fluids and the ERC project can be found at the page https://sites.google.com/sns.it/franco-flandoli/home-page Please contact me for any additional information concerning the project and the call, and please transfer the announcement to other potential candidates. Thanks a lot! Best wishes, Franco Flandoli

1 0

OWABC- Emtiyaz Khan - The Bayesian Learning Rule - April 27, 9.30am UK time
by Massimiliano Tamborrino 21 Apr '23

21 Apr '23

Dear all, The One World ABC Seminar series www.warwick.ac.uk/oneworldabc<http://www.warwick.ac.uk/oneworldabc> is about to resume. Our next speaker will be Emtiyaz Khan<https://emtiyaz.github.io/> (RIKEN), who will talk about "The Bayesian Learning Rule" on Thursday, April 27, 9.30am UK time, with an abstract reported below. The talk will be hosted on MS Teams here<https://teams.microsoft.com/l/meetup-join/19%3ameeting_Yjk5MDQyYWMtZmI3Yy00…>. Title: The Bayesian Learning Rule. Abstract Humans and animals have a natural ability to autonomously learn and quickly adapt to their surroundings. How can we design machines that do the same? In this talk, I will present Bayesian principles to bridge such gaps between humans and machines. I will show that a wide-variety of machine-learning algorithms are instances of a single learning-rule derived from Bayesian principles. I will also briefly discuss the dual perspective yielding new mechanisms for knowledge transfer in learning machines. My hope is to convince the audience that Bayesian principles are indispensable for an AI that learns as efficiently as we do. References * The Bayesian Learning Rule, (Preprint) M.E. Khan, H. Rue [ arXiv<https://arxiv.org/abs/2107.04562> ] [ Tweet<https://twitter.com/EmtiyazKhan/status/1414498922584711171?s=20> ] * Practical Deep Learning with Bayesian Principles, (NeurIPS 2019<https://nips.cc/Conferences/2019>) K. Osawa, S. Swaroop, A. Jain, R. Eschenhagen, R.E. Turner, R. Yokota, M.E. Khan. [ arXiv<https://arxiv.org/abs/1906.02506> ] [ Code<https://github.com/team-approx-bayes/dl-with-bayes> ] * Conjugate-Computation Variational Inference : Converting Variational Inference in Non-Conjugate Models to Inferences in Conjugate Models, (AIstats 2017<http://www.aistats.org/>) M.E. Khan and W. Lin [ Paper<https://arxiv.org/abs/1703.04265> ] Bio: Emtiyaz Khan (also known as Emti) is a team leader at the RIKEN center for Advanced Intelligence Project (AIP) in Tokyo where he leads the Approximate Bayesian Inference Team. He is also an external professor at the Okinawa Institute of Science and Technology (OIST). Previously, he was a postdoc and then a scientist at Ecole Polytechnique Fédérale de Lausanne (EPFL), where he also taught two large machine learning courses and received a teaching award. He finished his PhD in machine learning from University of British Columbia in 2012. The main goal of Emti’s research is to understand the principles of learning from data and use them to develop algorithms that can learn like living beings. For more than 10 years, his work has focused on developing Bayesian methods that could lead to such fundamental principles. The approximate Bayesian inference team now continues to use these principles, as well as derive new ones, to solve real-world problems. We are looking forward to seeing you next Thursday, best, Massimiliano on the behalf of the One World ABC Organisers ------ Dr. Massimiliano Tamborrino Associate Professor Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino ------

1 0

One Day Workshop on Risk Management - from Theory to Practice
by Stefano Bonaccorsi 21 Apr '23

21 Apr '23

Dear Colleagues, We are pleased to announce the workshop "Risk Management - From Theory to Practice" that will take place on Tuesday, May 2nd, at Cassa Centrale Banca, Via Giovanni Segantini, 23, 38122 Trento TN Program: 10:00 Giorgia Callegaro (Padova). Option Pricing: from Monte Carlo to Quantization 11:15 Emanuela Rosazza Gianin (Milano Bicocca): Risk measures beyond coherence 12:30 Lunch break 14:00 Fabio Bellini (Milano Bicocca): On the axiomatizations of Value at Risk, Expected Shortfall and expectiles 15:15 Elisa Mastrogiacomo (Insubria): Dynamic risk measures: dual representation, time-consistency and connections with Backward Stochastic Differential Equations} Organized by: Carlo Acerbi (Larix Risk Consulting) Stefano Bonaccorsi (Università di Trento) Sponsorship: Cassa Centrale Banca Participation is free of charge, but registration is mandatory. The registration deadline is April 28th 2023 (Friday) at 12:00. Please register via email at primer.maths(a)unitn.it Live streaming available on request, please contact the organizers at \ texttt{primer.maths(a)unitn.it} Risk Management – From theory to practice

1 0

Summer School on "Statistical Mechanics and Stochastic PDEs" (Sep 11-15, 2023)
by Francesco Caravenna 20 Apr '23

20 Apr '23

Dear friends, this is the last announcement for the summer school "Statistical Mechanics and Stochastic PDEs" which will be held from Sep 11-15, 2023, in Cetraro, Italy. It belongs to the series of mathematics summer schools organised yearly by Fondazione CIME. The school aims to expose researchers to some of the latest developments in statistical mechanics and stochastic PDEs, as well as the connections between the two. The list of speakers and their updated course titles is: Massimiliano Gubinelli (Univ. Oxford, UK) - Constructive stochastic quantization Antti Kupiainen (Univ. Helsinki, Finland) - Constructive Conformal Field Theory: the case of the Liouville Model Ioan Manolescu (Univ. Fribourg, Switzerland) - An invitation to FK percolation Fabio Lucio Toninelli (Technical Univ. Vienna, Austria) - Large-scale behavior of (super-)critical stochastic PDEs We especially encourage the participation of PhD students and postdocs. A limited number of grants will be available to cover their local expenses (full board accommodation). Interested participants should submit their applications before Apr 30, 2023, through the school website: https://sites.google.com/unifi.it/cime/c-i-m-e-courses/c-i-m-e-courses-2023… <https://sites.google.com/unifi.it/cime/c-i-m-e-courses/c-i-m-e-courses-2023…> Some practical details on the location: https://sites.google.com/unifi.it/cime/c-i-m-e-courses/c-i-m-e-courses-2022… <https://sites.google.com/unifi.it/cime/c-i-m-e-courses/c-i-m-e-courses-2022…> Please feel free to circulate the information. The organisers, Francesco Caravenna, Rongfeng Sun, Nikos Zygouras -- _________________________________________ Francesco Caravenna Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca Via Cozzi 55, 20125 Milano, Italy Office 3016, U5 building https://staff.matapp.unimib.it/~fcaraven/ _________________________________________

1 0

Seminar: Federico Ricci Tersenghi at Tor Vergata
by salvi 19 Apr '23

19 Apr '23

Dear all, On Wednesday, April 26th, at 14h00 in Aula 2001 (change of usual room! Aula 2001 is behind Aula Dal Passo) at Roma Tor Vergata, RoMaDS (https://www.mat.uniroma2.it/~rds/about.php) will host Federico Ricci Tersenghi (La Sapienza) with the seminar _ _ _"Phase transitions and algorithmic thresholds for optimization and inference problems on sparse random graphs__"_ _ _ Abstract: Focusing on some fundamental constraint satisfaction problems defined on sparse random graphs (e.g. random k-sat, random q-coloring) I will start summarizing the rich phase diagram of the solution space which has been derived using powerful techniques from statistical mechanics of disordered systems. I will then discuss the implications of some of these phase transitions for the behaviour of smart algorithms searching for solutions. In the second part, I will consider the problem of inferring a signal from noisy and/or incomplete data within the Bayesian framework called the teacher-student scenario. I will discuss the corresponding phase diagrams and how phase transitions may affect the performances of inference algorithms based on message-passing and Monte Carlo sampling. We encourage in-person partecipation. Should you be unable to come, here is the link to the event on Teams [1]. The seminar is part of the Excellence Project MatMod@TOV. Note that in the next month we will have plenty more of interesting seminars from mathematicians and computer scientists, save the dates! 03.05.2023 - Pierluigi Crescenzi (GSSI) 09.05.2023 - Arturo Kohatsu-Higa (Ritsumeikan University, Kyoto) 17*.05.2023 - Daniele Calandriello (Google Deep Mind, Paris) 24.05.2023 - Rongfeng Sun (NUS, Singapore) *exact date to be confirmed You can find a schedule with the next events at the following link: https://www.mat.uniroma2.it/~rds/events.php. Links: ------ [1] https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw…

1 0

Pre-Doc research Position TU Wien
by Avalos Pacheco, Alejandra 19 Apr '23

19 Apr '23

Dear colleagues, The Research Unit of Applied Statistics at TU Wien invites applications for a Pre-Doc research Position. Tasks: * Conduct research leading to peer-reviewed articles and a PhD dissertation * Assist in teaching (including evaluations, exams and guidance of students) * Participation in scientific functions (conferences, workshops, summer schools, etc.) * Assistance/Collaboration in organization of research unit functions and administrative tasks Your profile: * Bachelor’s Degree in Mathematics (preferably) or related field * Completed Master’s Degree or equivalent (e.g., Dipl.-Ing., Dipl.-Inf.), preferably with distinction, in Statistics, Pure or Applied Mathematics, Computer Science or related fields * Strong analytical and computing skills (R, Python, C++, Matlab) * Strong interest in research * Good communication and writing skills in English The entry level salary is determined by the pay grade B1 of the Austrian collective agreement for university staff. This is a minimum of currently EUR 2,458.00/month gross, 14 times/year for 30 hours/week. Relevant working experiences may increase the monthly income. Apply here: https://jobs.tuwien.ac.at/Job/207833 Best regards, Alejandra Avalos-Pacheco

1 0

Call for applications: PhD fellowship in Economics @University of Milan (Statale), Italy
by Luca Rossini 19 Apr '23

19 Apr '23

Dear colleagues, The Department of Economics, Management, and Quantitative Methods (DEMM) of the University of Milano invites applications to its Ph.D. Programme in Economics for the academic year 2023-24. *The _deadline_ for applications is May 05th, 2023 at 2 p.m.* The official Call for Applications: https://apps.unimi.it/files/bandi/call-2024-1-economics.pdf?18-APR-23 Ph.D. program's webpage: https://www.unimi.it/en/education/postgraduate-and-continuing-education-pro… The length of the Ph.D. Programme is three years, starting in October 2023. We offer six fellowships (for a period of three years) to the highest ranked applicants. Each fellowship pays a minimum grant of € 16.350 (gross income, exempt from income tax) per year. The monthly allowance can be increased up to 50% for our Ph.D. students visiting academic or scientific institutions abroad. Starting from the first year, in addition to the scholarship and depending on the University’s financial resources, each doctoral student is given a budget for research activity in Italy and abroad suited for the type of programme, and in any case amounting to no less than 10% of the amount of the scholarship itself. The official Call for Applications contains detailed information on: i) the documents which each candidate has to submit; ii) the structure, contents, and timing (Interview in 23-25 May 2023) of the entrance examination; iii) a description of the projects related to the additional scholarships and positions. -- Dr. Luca Rossini Lecturer (Assistant Professor Tenure Track) in Statistics, Department of Economics, Management and Quantitative Methods University of Milan (Statale), Italy email:luca.rossini87@gmail.com luca.rossini(a)unimi.it skype: luca.rossini14 web:https://lucarossini.wixsite.com/luca-rossini

1 0

Associate Professor in Statistics, Ca’ Foscari University of Venice, Italy
by Carlo Gaetan 19 Apr '23

19 Apr '23

Gentili iscritte/i alla lista l'Università Ca’ Foscari di Venezia bandisce un posto per professore associato settore concorsuale 13/D1 (Statistica), settore s-d SECS-S/01 (Statistica) presso il Dipartimento di Scienze Ambientali, Informatica e Statistica (DAIS). Il bando è finanziato dal programma "Dipartimento di eccellenza" e la scadenza per la presentazione delle domande è il*27 APRILE 2023 alle ore 13.00.* Richieste d'informazione informali possono essere inviate al mio collega Cristiano Varin (cristiano.varin(a)unive.it) , mentre per formulare la domanda si consideri il link* * ** https://www.unive.it/data/38002/?id=2023-UNVE000-0070510 Grazie se potete segnalare il bando alle/ai potenziali interessate/i e qui sotto vi riporto l'annuncio in inglese per favorire ancor di più la diffusione del bando. Buona giornata, Carlo Gaetan ======================= Associate Professor in Statistics, Ca’ Foscari University of Venice, Italy Application Deadline: April 27, 2023 1:00pm (Italian Time) The Department of Environmental Sciences, Informatics and Statistics of the Ca’ Foscari University of Venice is recruiting a full time Associate Professor in Statistics (SECS-S/01 Statistica). The new hire would join the Statistics group (https://www.unive.it/pag/41970/) and he/she is expected to contribute to the development of the department under the programme “Dipartimento di Eccellenza” (https://www.miur.gov.it/dipartimenti-di-eccellenza) The teaching load would include classes of varying size at bachelor, master and PhD level in Italian or English. Foreign candidates should state in their application that they have adequate Italian language skills or that they do not have adequate Italian language skills but they commit to achieve them. More information about the call (in Italian and English) can be found at https://www.unive.it/data/38002/?id=2023-UNVE000-0070510 Ca’ Foscari University offers a start-up fund for newly recruited researchers and offers funding opportunities, including: - an annual support to individual researchers; - co-founded post-doc positions; - financial support for short-term incoming and outgoing visits; - financial support for seminars and visiting scholars. Professors and researchers who have carried out their research activities abroad for at least two consecutive years and who move to Italy acquiring tax residency, are entitled to substantial tax benefits. See more at https://www.agenziaentrate.gov.it/portale/web/english/nse/individuals/tax-i…. Informal enquiries about the job and the application process can be made to Professor Cristiano Varin cristiano.varin(a)unive.it -- - Dipartimento di Scienze Ambientali, Informatica e Statistica - DAIS Università Ca' Foscari - Venezia Z.A12 - Edificio Zeta Via Torino, 155 I-30172 Mestre (VE) ITALY phone: ++39 041 234 8404 e-mail:[gaetan"at"unive"dot"it] web:[http://www.dais.unive.it/~gaetan] Please don't print this e-mail unless you really need to. Please avoid sending me Word, Excel or PowerPoint attachments. Seehttp://www.gnu.org/philosophy/no-word-attachments.html. Per favore non stampate questo messaggio se non è proprio necessario. Per favore non mandatemi allegati in Word, Excel o PowerPoint. Le ragioni sono spiegate quihttp://www.gnu.org/philosophy/no-word-attachments.it.html

1 1

Mark Podolskij's seminar at LUISS (hybrid mode)
by Sara 17 Apr '23

17 Apr '23

Dear all, Professor Mark Podolskij ( https://wwwen.uni.lu/research/fstm/dmath/people/mark_podolskij) will give a seminar on *Thursday, April 20 at noon in room 205:* *Title * On Estimation of the Maximal Rank of Stochastic Volatility *Abstract* In this talk we address the question of how many Brownian motions are required to model a multivariate price process of diffusion type. It turns out that this question is equivalent to estimation of the maximal rank of the volatility component. We solve this mathematical problem in the high frequency regime and provide a formal estimation and testing procedure. If the time allows we touch upon high dimensional aspects of the problem. Please, find here the link to the seminar virtual room: Link room 205 B: https://luiss.webex.com/luiss-en/j.php?MTID=me3d961dc4b3575085d5d4b6a304e2d… guest username: w_guest(a)luiss.it pw : i7G3HiAKq2Q Best regards, Sara ---------------------------------------------------------------------------------------------- *Sara Biagini* Department of Economics and Finance *LUISS University* Address: Viale Romania, 32 00197 Roma *Web* (institutional): https://economiaefinanza.luiss.it/docenti/cv/352478 *Web* (personal): https://sites.google.com/site/sarabiagini/

1 0

Seminar in Statistics - EVGENII CHZHEN
by Pierpaolo De Blasi 17 Apr '23

17 Apr '23

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 21 Aprile 2023, alle ore 12.00, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ Speaker: *Evgenii Chzhen* (Université Paris-Saclay, France) Title: *Demographic parity constraint for algorithmic fairness : a statistical perspective* Abstract: In this talk I will give a brief introduction to the recently emerged field of algorithmic fairness and advocate for a statistical study of the problem. To support my claims, I will focus on the Demographic Parity fairness constraint, describing various connections to classical statistical theory, optimal transport, and conformal prediction literature. In particular, we will study the form of an optimal prediction function under this constraint in both regression and classification. Then, I will describe a learning procedure which is supported by statistical guarantees under no or mild assumptions on the underlying data distribution. This talk is based on a sequence of joint works with Ch. Denis, S. Gaucher, M. Hebiri, L. Oneto, M. Pontil, and N. Schreuder. ------------------------------------------------ Sarà possibile seguire il seminario anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/89455985680?pwd=OXBPZSthaG5pRjZGbDNMVk9MMG1PQT09> 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/>

1 0

Seminario F. Mecatti (UNIMIB) presso il Politecnico di Milano
by Laura Maria Sangalli 17 Apr '23

17 Apr '23

Si avvisa che in data 21-04-2023, alle ore 14:30 precise presso il Politecnico di Milano, Dipartimento di Matematica, Aula Saleri sesto piano (Edificio 14 - La Nave), nell’ambito delle attività del MOX, si svolgerà il seguente seminario: Fulvia Mecatti, Università degli Studi Milano Bicocca Titolo: What is big in big data? A sampling statistician perspective Abstract: BigData users as well as BigData research community are fast growing bigger and bigger while statisticians at large seem to be growing divided between enthusiastic and worried, when not downright hostile. Is BigData also a big step ahead to extract information and actual knowledge from data? Is BigData underplaying statistical inference as we know it? Supplanting stats methodology as a low-cost futuristic option? As a (mainly) sampling statistician, in this webinar I shall try to decipher the multifaceted relationship connecting BigData to statistical and to sampling methodology, starting with the still blurry definition of BigData and discussing some very personal considerations and views. Il link per seguire il seminario online sarà reso disponibile pochi minuti prima dell’avvio del seminario al seguente Link: https://mox.polimi.it/mox-seminars/?id_evento=2272 Tutti gli interessati sono cordialmente invitati a partecipare, Laura Sangalli —— Laura Maria Sangalli MOX - Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano - Italy (+39) 02 2399 4554 laura.sangalli(a)polimi.it https://sangalli.faculty.polimi.it <https://sangalli.faculty.polimi.it/>

1 0

Deadline approaching (April 19): PhD Economics, Statistics and Data Science @unimib
by Tommaso Rigon 14 Apr '23

14 Apr '23

Dear colleagues, The Department of Economics, Management, and Statistics (DEMS) of the University of Milano-Bicocca invites applications to its Ph.D. Programme in Economics, Statistics, and Data Science (ECOSTATDATA) for the academic year 2023-24 (XXXIX cycle, Session I). The deadline for applications is approaching: April 19th, 2023, at 12.00 noon. The official Call for Applications: https://en.unimib.it/education/postgraduates/doctoral-research-phd-programm… Ph.D. program's webpage: https://www.dems.unimib.it/en/research/phd-economics-statistics-and-data-sc… The Ph.D. Programme is articulated in three curricula, Economics (ECO), Statistics (STAT), and Big Data & Analytics for Business (BIDAB). The length of the Ph.D. Programme is four years, starting in late October 2023. We offer at least ten fellowships (for a period of four years) to the highest ranked applicants. Each fellowship pays a minimum grant of € 16.200 (gross income, exempt from income tax) per year. The monthly allowance can be increased up to 50% for our Ph.D. students visiting academic or scientific institutions abroad. There will also be allowances (research funds) for short-period mobility (from the first year). Additional scholarships and positions are also available on specific research projects in collaboration with national and international companies of primary importance. The selection procedure is regulated by the official Call for Applications (Bando di Concorso) – Session I, which was published in the Doctoral School’s and on the Ph.D. programme websites on March 21st, 2023. The official Call for Applications contains detailed information on: i) the documents which each candidate has to submit; ii) the structure, contents, and timing (approximately during May 2023) of the entrance examination; iii) a description of the projects related to the additional scholarships and positions.

1 0

[Reminder] A spring day in Probability and Statistical Physics - 21 Aprile 2023
by Gianmarco Bet 13 Apr '23

13 Apr '23

Care colleghe e colleghi, Vi ricordiamo che Venerdì 21 Aprile si terrà l'undicesima giornata di seminari: A SPRING DAY IN PROBABILITY AND STATISTICAL PHYSICS University of Florence Friday 21 April 2023 Lecturers: Fabio Toninelli (Vienna) and Julia Komjathy (Delft) Location: Sala Tricerri, Dipartimento di Matematica e Informatica Ulisse Dini, viale Morgagni 67/a, Firenze, Firenze Ricordiamo che ciascun oratore farà una lezione introduttiva e divulgativa di 45 minuti pensata proprio per i non esperti, seguita da altri 45 minuti di tipo seminario (vedi programma). Maggiori informazioni e aggiornamenti sono reperibili alla pagina web https://sites.google.com/unifi.it/florence-probability-group/home/days-in-p… <https://sites.google.com/unifi.it/florence-probability-group/home/days-in-p…>. Trovate qui <https://drive.google.com/file/d/1sZk_pdmI0_vO8vnfE-KHWbbNrE3OCCf2/view?usp=…> il poster dell’evento. Note pratiche: a coloro che fossero interessati (per una migliore organizzazione) chiediamo di compilare il seguente Google Form per indicare l'intenzione di partecipare alla giornata e in particolare al pranzo: https://docs.google.com/forms/d/e/1FAIpQLSdksgtnmxrLTE4h9RLyEfx3lo0aMHpowiI… <https://docs.google.com/forms/d/e/1FAIpQLSdksgtnmxrLTE4h9RLyEfx3lo0aMHpowiI…> Vi aspettiamo numerosi! Gianmarco Bet e Luisa Andreis Scientific advisory committee: F. Caravenna, E.N.M. Cirillo, F. Colomo, P. Dai Pra, A. De Masi, C. Giardina`, R. Livi, F. Martinelli, I.G. Minelli, B. Scoppola, E. Scoppola. PROGRAMMA Prof. Fabio Toninelli (Technical University of Vienna) Title: Driven diffusive systems and stochastic PDEs Prof. Julia Komjathy (Technical University of Delft) Title: Cluster-size decay in spatial random graphs 10:30-11:00 Welcome coffee 11.00-11.45 Introductory lecture: Toninelli 11.45-12.15 Break 12.15-13.00 Seminar: Toninelli 13.00-14.30 Lunch 14.30-15.15 Introductory lecture: Komjathy 15.15-15.45 Break 15.45-16.30 Seminar: Komjathy ---------------------------------------------------------------------- Gianmarco Bet (he/him) Senior researcher https://gianmarco.bet <https://gianmarco.bet/> Phone: (+39) 055 2751491 Department of Mathematics and Computer Science "U. Dini" University of Florence Viale Morgagni, 65 50134 Firenze, Italy Office 64 https://unifirenze.webex.com/meet/gianmarco.bet <https://unifirenze.webex.com/meet/gianmarco.bet> ----------------------------------------------------------------------

1 0

Seminario di Nikolay Barashkov, martedì 18 aprile in Sapienza
by Giacomo Di Gesu 13 Apr '23

13 Apr '23

Segnalo il seguente seminario: *Martedì 18 Aprile, ore 14:00* Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Nikolay Barashkov, University of Helsinki *Title:* Gluing for $\phi^4_3$ on cylinders *Abstract:* The $\phi^4_3$ model is a 3-dimensional non-Gaussian Euclidean QFT. Showing existence of such a measure was one of the highlights of the constructive QFT programme in the '70s. In this talk I will describe joint work with Trishen Gunaratnam in analysing how $\phi^4_3$ models glue together on cylinders.

1 0

SPASS Seminar: Vittoria Silvestri
by Francesco Grotto 11 Apr '23

11 Apr '23

Dear Colleagues, We would like to invite you to the following SPASS seminar, jointly organized by UniPi, SNS, UniFi and UniSi: *Planar aggregation with subcritical fluctuations and the Hastings-Levitov models* Vittoria Silvestri (Università di Roma 1 La Sapienza) The seminar will take place on TUE, 18.4.2023 at 14:00 CET in Sala Seminari, Dipartimento di Matematica, Pisa and streamed online at the link below. The organizers, A. Agazzi, G. Bet, A. Caraceni, F. Grotto, G. Zanco https://sites.google.com/unipi.it/spass -------------------------------------------- *Abstract: **The ALE (Aggregate Loewner Evolution) models describe growing random clusters on the complex plane, built by iterated composition of random conformal maps. A striking feature of these models is that they can be used to define natural off-lattice analogues of several fundamental discrete models, such as Eden or Diffusion Limited Aggregation, by tuning the correlation between the defining maps appropriately. In this talk I will discuss shape theorems and fluctuations of ALE clusters, which include Hastings-Levitov clusters as particular cases, in the subcritical regime. Based on joint work with James Norris and Amanda Turner.*

1 0

Reminder - De Finetti Risk Seminar - April 12, 2023
by Emanuela Rosazza Gianin 11 Apr '23

11 Apr '23

On behalf of the Scientific Committee of the "B. de Finetti Risk Seminars, Milano Lectures on the Mathematical Theory of Economics and Finance”, we are glad to invite you to participate at the following Lecture: Martin Schweizer ETH Zurich Title: Dynamic programming for mean-variance portfolio selection Abstract: We present a dynamic programming approach to solving the mean-variance portfolio selection problem in finite discrete time. This bypasses issues of time-inconsistency and hence does not need the introduction of an equilibrium or game-theoretic approach. The talk is based on joint work with Zhouyi Tan. LOCATION: The seminar will be held on *April 12, *2023 at *18.00,* Aula Di Rappresentanza, Dipart. Matematica, Università di Milano, Via Saldini 50, Milano. Scientific Committee Prof. Simone Cerreia-Voglio (Univ. Bocconi) Prof. Marco Frittelli (Univ. degli Studi di Milano) Prof. Fabio Maccheroni (Univ. Bocconi) Prof. Marco Maggis (Univ. degli Studi di Milano) Prof. Massimo Marinacci (Univ. Bocconi) Prof. Emanuela Rosazza Gianin (Univ. Milano-Bicocca) ****************************************** Emanuela Rosazza Gianin Dipartimento di Statistica e Metodi Quantitativi Università di Milano-Bicocca Edificio U7 – 4° Piano Via Bicocca degli Arcimboldi, 8 20126 Milano Tel. 02 64483208 e-mail: emanuela.rosazza1(a)unimib.it ****************************************** --

1 0

Seminar in Statistics - PETER GRUNWALD
by Pierpaolo De Blasi 11 Apr '23

11 Apr '23

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 14 Aprile 2023, alle ore 12.00, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ Speaker: *Peter Grunwald* (CWI and Universitet Leiden, Netherlands) Title: *E is for Evidence* Abstract: How much evidence do the data give us about one hypothesis versus another? The standard way to measure evidence is still the p-value, despite a myriad of problems surrounding it. We present the e-value, a recently popularized notion of evidence which overcomes some of these issues. While e-values were only given a name as recently as 2019, interest in them has since exploded with papers in the Annals, JRSS B, Biometrika and the like – June 2022 saw the first international workshop on e-values, a second one is planned. In simple cases, e-values coincide with Bayes factors. But if the null is composite or nonparametric, or an alternative cannot be explicitly formulated, e-values and Bayes factors become distinct and e-processes can be seen as a generalization of nonnegative supermartingales. Thus, unlike the Bayes factor, e-values always allow for tests with strict frequentist Type-I error control under optional continuation of data collection and combination of data from different sources. E-values are also the basic building blocks of anytime-valid confidence intervals that remain valid under continuous monitoring and optional stopping. In parametric settings they tend to be strictly wider than, hence consistent with Bayesian credible intervals. This led to the development of the e-posterior, an analogue to the Bayesian posterior that gets wider rather than wrong if the prior is chosen badly. This work is based on: P. Grunwald,. R. de Heide, W. Koolen (2023). Safe Testing. To appear in J. Roy. Stat. Soc., Series B P. Grunwald (2023) . The E-Posterior. Proc. Phil. Trans. Soc. London Series A, 2023. ------------------------------------------------ Sarà possibile seguire il seminario anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/87981434018?pwd=MjhMakxWcEFJY09NSG16NXBaL0hRdz09> 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/>

1 0

OWPS Tomorrow: Fabio Toninelli and Giuseppe Cannizzaro
by Alberto Chiarini 10 Apr '23

10 Apr '23

Dear all, A reminder that tomorrow (Wednesday), from 15:00 to 17:00 UTC (17:00 to 19:00 Central European Time), Fabio Toninelli (Technical University of Vienna) and Giuseppe Cannizzaro (University of Warwick) will be speaking at the One World Probability Seminar. Title, abstract and the zoom link are below the signature and can be found on the website https://www.owprobability.org/one-world-probability-seminar. We kindly ask that you share this message within your community. With best wishes, Alberto Chiarini (Padua) and Adrián González Casanova (Berkeley and México) ---------------------------------------------------------------------------------------------------------- Talk : Fabio Toninelli (Technical University of Vienna) Title : Out-of-equilibrium phenomena, stochastic PDEs and Gaussian limits Abstract : I will report on mathematical progress on certain (non-linear, singular) stochastic PDEs that model effectively the mesoscopic behaviour of some out-of-equilibrium physical systems, most notably stochastic interface growth and driven diffusive systems. Scaling and Renormalization Group arguments suggest that, above the critical dimension d=2, the large-scale behaviour of these equations should be Gaussian. Our results imply, indeed, Gaussian scaling limits in dimension d\ge 3 (for driven diffusive systems) and also, at least in the regime of weak non-linearity, in the critical dimension d=2 (both for driven diffusive systems and for the Anisotropic KPZ equation). Talk : Giuseppe Cannizzaro (University of Warwick) Title : Weak coupling scaling of critical SPDEs Abstract : The study of stochastic PDEs has known tremendous advances in recent years and, thanks to Hairer's theory of regularity structures and Gubinelli and Perkowski's paracontrolled approach, (local) existence and uniqueness of solutions of subcritical SPDEs is by now well-understood. The goal of this talk is to move beyond the aforementioned theories and present novel tools to derive the scaling limit (in the so-called weak coupling scaling) for certain stationary SPDEs at the critical dimension. Our techniques are inspired by the resolvent method developed by Landim, Olla, Yau, Ramirez, and many others, in the context of particle systems in the supercritical dimension and might be well-suited to study a much wider class of statistical mechanics models at criticality. Zoom-link: https://unipd.zoom.us/j/88344317640?pwd=VE5IdXBLQkJ0dkZHUWlOaVJPajRnUT09 Meeting ID: 883 4431 7640 Passcode: 647663

1 0

11th General AMaMeF Conference in Bielefeld: New Deadline for Abstracts is APRIL 23
by Ferrari, Giorgio 10 Apr '23

10 Apr '23

Dear Colleagues, this is to inform that the deadline for abstracts' submissions at the /11th General AMaMeF Conference /( https://sites.google.com/view/amamef-2023/overview ) has been extended to *APRIL 23, 2023.* The submission of titles and abstracts for talks can be performed here: https://sites.google.com/view/amamef-2023/abstract-submission All the details about deadlines, registration and fees are listed here: https://sites.google.com/view/amamef-2023/participation-fees-and-dates All the best wishes and looking forward to welcoming you in Bielefeld in the Summer! Giorgio Ferrari and Frank Riedel

1 0

One World YoungStatS Webinar on Extreme Value Theory
by Alessia Caponera 06 Apr '23

06 Apr '23

Dear all, This is to announce the upcoming *One World YoungStatS Webinar (with discussant) "Recent advances in extreme value theory"*. When & Where: - Thursday, April 20th, 6:00 PT / 9:00 ET / 15:00 CET - Online, via Zoom. The registration form is available here <https://docs.google.com/forms/d/e/1FAIpQLSdeixPUhPzfQfGMGC8YcSNiK9kfgGpNujy…> . Speakers: - Stefano Rizzelli <https://docenti.unicatt.it/ppd2/it/docenti/85092/stefano-rizzelli>, Department of Statistical Sciences, Catholic University of Milan. Title: *Mathematical foundations of empirical Bayesian analysis of maxima* - Nicola Gnecco <https://www.math.ku.dk/english/about/news/new-names/nicola-gnecco-postdoc/>, Department of Mathematical Sciences, University of Copenhagen. Title: *Extremal Random Forests* - Jonathan Koh <https://www.imsv.unibe.ch/about_us/staff/dr_koh_jonathan_boon_han/index_eng…>, Oeschger Centre for Climate Change Research, University of Bern. Title: *Predicting risks of temperature extremes using large-scale circulation patterns with r–Pareto processes* Discussant: Sebastian Engelke <https://www.unige.ch/gsem/en/research/faculty/all/sebastian-engelke/>, Research Center for Statistics, University of Geneva The webinar is part of YoungStatS project of the Young Statisticians Europe initiative (FENStatS) supported by the Bernoulli Society for Mathematical Statistics and Probability and the Institute of Mathematical Statistics (IMS). For additional information, please visit the YoungStatS website <https://youngstats.github.io/post/2023/04/04/recent-advances-in-extreme-val…> . Best wishes, Alessia Caponera

1 0

Procedura selettiva 2023PO182 - Università di Padova
by Alessandra Fabbri Colabich 05 Apr '23

05 Apr '23

Si informa che è stato pubblicato il nuovo bando *2023PO182* relativo all'indizione di Procedure selettive per la chiamata di n. 3 Professori di prima fascia ai sensi dell’art. 18, comma 1, Legge 30 dicembre 2010, n. 240. Bando al link: https://www.stat.unipd.it/procedure-selettive-2023po182-la-chiamata-di-n-3-… *Scadenza* presentazione domanda: *04.05.2023 ore 13.00.* Si prega di dare la massima diffusione presso tutti gli interessati. Grazie per la collaborazione Alessandra Fabbri Colabich -- Dott.ssa Alessandra Fabbri Colabich Università degli Studi di Padova Dipartimento di Scienze Statistiche

1 0

Next OWPS on April 12th: Fabio Toninelli and Giuseppe Cannizzaro
by Alberto Chiarini 04 Apr '23

04 Apr '23

Dear all, OWPS's next session will be on Wednesday the 12th of April from 15:00 to 17:00 UTC (Coordinated Universal Time, which means 17:00 - 19:00 CET). We have the pleasure of introducing our next speakers: Fabio Toninelli (Technical University of Vienna) and Giuseppe Cannizzaro (University of Warwick) Title, abstract and the zoom link are below the signature and can be also found on the website https://www.owprobability.org/one-world-probability-seminar. If you are interested in the project, we kindly ask you to share this announcement within your local and national community. With best wishes, Alberto Chiarini (Padua) and Adrián González Casanova (Berkeley and México) ----------------------------------------------------------------------------------------------------------- Talk : Fabio Toninelli (Technical University of Vienna) Title : Out-of-equilibrium phenomena, stochastic PDEs and Gaussian limits Abstract : I will report on mathematical progress on certain (non-linear, singular) stochastic PDEs that model effectively the mesoscopic behaviour of some out-of-equilibrium physical systems, most notably stochastic interface growth and driven diffusive systems. Scaling and Renormalization Group arguments suggest that, above the critical dimension d=2, the large-scale behaviour of these equations should be Gaussian. Our results imply, indeed, Gaussian scaling limits in dimension d\ge 3 (for driven diffusive systems) and also, at least in the regime of weak non-linearity, in the critical dimension d=2 (both for driven diffusive systems and for the Anisotropic KPZ equation). Talk : Giuseppe Cannizzaro (University of Warwick) Title : Weak coupling scaling of critical SPDEs Abstract : The study of stochastic PDEs has known tremendous advances in recent years and, thanks to Hairer's theory of regularity structures and Gubinelli and Perkowski's paracontrolled approach, (local) existence and uniqueness of solutions of subcritical SPDEs is by now well-understood. The goal of this talk is to move beyond the aforementioned theories and present novel tools to derive the scaling limit (in the so-called weak coupling scaling) for certain stationary SPDEs at the critical dimension. Our techniques are inspired by the resolvent method developed by Landim, Olla, Yau, Ramirez, and many others, in the context of particle systems in the supercritical dimension and might be well-suited to study a much wider class of statistical mechanics models at criticality. Zoom-link: https://unipd.zoom.us/j/88344317640?pwd=VE5IdXBLQkJ0dkZHUWlOaVJPajRnUT09 Meeting ID: 883 4431 7640 Passcode: 647663 If you are having trouble with zoom, or if the capacity of the zoom room gets exceeded, you can also access the Youtube live stream at the channel of the seminar: https://www.youtube.com/channel/UCiLiEQGTp6bZEhuHDM-WNWQ

1 0

A Conference in Memory of Peter Carr
by Sabrina Mulinacci 03 Apr '23

03 Apr '23

Deal all, we are glad to announce a conference that will take place in Bologna, on April 14th 2023, in memory and honour of Peter Carr. The program is here below, participation info enclosed. Venue: University of Bologna, Piazza Scaravilli, 2, classroom 32, 3rd floor, online by invitation (see below) 9.30. Registration 10.00 – 10.45 Lorenzo Torricelli, University of Bologna, “Explicit Option Pricing with Additive Processes” 10.45 – 11.30 Pasquale Cirillo, ZHAW School of Management and Law, “The Wang Transform is a Matter of Inequality” 11.30 – 12.15 Federico Maglione, University of Florence, “Stretching Merton’s Distance to Default Model” 12.30-14.00 Lunch Time 14.15 – 15.00 Gianna Figà-Talamanca, University of Perugia, “Spiking the Volatility Punch” 15.00 – 15.45 Claudio Tebaldi (online), Bocconi University, TBA 15.45 – 16.30 Umberto Cherubini, University of Bologna, “Pickands Option Pricing” 16.30 – 17.00 Farewell: Peter Carr Chapter Italy. Participation is free of charge, and will take place in a hybrid form, both in presence and online. For organization purposes we ask you to register sending an e-mail, specifying whether you will be attending in presence or online, to marialuigia.loiudice(a)unibo.it umberto.cherubini(a)unibo.it federico.maglione(a)unifi.it This is the link for online attendence: https://teams.microsoft.com/l/meetup-join/19%3ameeting_Y2FmODIxNTMtOGVmYi00… Sincerely, Sabrina Mulinacci

2 1