Random

random@lists.dm.unipi.it

5275 discussions

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

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random