Random

random@lists.dm.unipi.it

47 participants
5251 discussions

Seminars at Ca' Foscari University: Melvyn Weeks, University of Cambridge
by Roberto CASARIN 22 Sep '23

22 Sep '23

Dear all, I am pleased to invite you to the seminar organised by the Department of Economics at Ca' Foscari University of Venice, which can be followed via Zoom. Time: Wednesday 27th of September, at 10.30 Location: Campus San Giobbe, Meeting Room 1 Zoom: https://www.unive.it/data/agenda/3/77644 Speaker: Melvyn Weeks (University of Cambridge) Title: Making Sense of Natural Language: Measuring Cultural Fit and Its Impact on Managerial Tenure Abstract: We create measures for managers' cultural fit using one of the latest machine learning technologies – the sentence embedding model - by analysing 11.5 million speeches in earnings calls. A better cultural fit is significantly and positively correlated with managerial tenure. We demonstrate that the effect of cultural fit on managerial tenure is causal using causal survival forests. Firms that hire culturally disruptive managers have lower future market values and performance. The stock market reacts positively to signals that indicate low cultural dispersion within the firm. -- Roberto Casarin, PhD Professor of Econometrics Ca' Foscari University of Venice San Giobbe 873/b - 30121 Venezia, Italy http://sites.google.com/view/robertocasarin/ https://www.unive.it/vera <https://www.unive.it/isba2024> https://www.unive.it/isba2024 -- Nota automatica aggiunta dal sistema di posta *Sostieni il futuro* Dona il tuo 5x1000 al Collegio Internazionale Ca' Foscari *FINANZIAMENTO DELLA RICERCA SCIENTIFICA E DELLA UNIVERSITÀ | CODICE FISCALE: 80007720271*

1 0

OWABC seminar - Carlo Albert - September 28, 9am UK time
by Massimiliano Tamborrino 22 Sep '23

22 Sep '23

Dear all, the 5th Season of the One World ABC www.warwick.ac.uk/oneworldabc<http://www.warwick.ac.uk/oneworldabc> is about to start. We are working on the lineup, after having secured some exciting talks (more info to come). If you are interested in giving a talk or would like to suggest a speaker, please get in touch with Massimiliano Tamborrino (massimiliano.tamborrino(a)warwick.ac.uk) or any of the other organisers. Our first speaker is Carlo Albert<https://www.eawag.ch/en/about-us/portrait/organisation/staff/profile/carlo-…>, who is talking about "Learning summary statistics for Bayesian inference with Autoencoders" on Thursday the 28th September at 9am UK time, with an abstract reported below. The talk will be streamed on Zoom https://chalmers.zoom.us/j/69069218828 Password: 594071 We are looking forward to seeing you next Thursday, best, Massimiliano on the behalf of the OneWorldABC Organisers Date: Thursday, September 28, 9am UK time Speaker: Carlo Albert<https://www.eawag.ch/en/about-us/portrait/organisation/staff/profile/carlo-…>, Swiss Federal Institute of Aquatic Science and Technology Title: Learning summary statistics for Bayesian inference with Autoencoders Abstract: In order for ABC to give accurate results and be efficient, we need summary statistics that retain most of the parameter-related information and cancel out most of the noise, respectively. For many scientific applications, we need strictly more summary statistics than model parameters to reach a satisfactory approximation of the posterior. Therefore, we propose to use a latent representation of deep neural networks based on Autoencoders as summary statistics. To create an incentive for the encoder to encode all the parameter-related information but not the noise, we give the decoder access to explicit or implicit information on the noise that has been used to generate the training data. We validate the approach empirically on two types of stochastic models, one being a member of the exponential family, the other one not. ------ Dr. Massimiliano Tamborrino Associate Professor Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino

1 0

Seminars at Ca' Foscari University: Dimitris Korobilis, University of Glasgow
by Roberto CASARIN 22 Sep '23

22 Sep '23

Dear Colleagues, It is my pleasure to invite you to the seminar organised by the Department of Economics at Ca' Foscari University of Venice, which can be followed via Zoom. Time: Monday 25, at 12.15 Location: Campus San Giobbe, Meeting Room 1 Zoom: https://www.unive.it/data/33113/3/76558 Speaker: Dimitris Korobilis (University of Glasgow)Title: Monitoring Multicountry Macroeconomic Risk Abstract: We propose a multicountry quantile factor augmented vector autoregression (QFAVAR) to model heterogeneities both across countries and across characteristics of the distributions of macroeconomic time series. The presence of quantile factors allows for summarizing these two heterogeneities in a parsimonious way. We develop two algorithms for posterior inference that feature varying level of trade-off between estimation precision and computational speed. Using monthly data for the euro area, we establish the good empirical properties of the QFAVAR as a tool for assessing the effects of global shocks on country-level macroeconomic risks. In particular, QFAVAR short-run tail forecasts are more accurate compared to a FAVAR with symmetric Gaussian errors, as well as univariate quantile autoregressions that ignore comovements among quantiles of macroeconomic variables. We also illustrate how quantile impulse response functions and quantile connectedness measures, resulting from the new model, can be used to implement joint risk scenario analysis. Keywords: quantile VAR; MCMC; variational Bayes; dynamic factor model -- Roberto Casarin, PhD Professor of Econometrics Ca' Foscari University of Venice San Giobbe 873/b - 30121 Venezia, Italy http://sites.google.com/view/robertocasarin/ https://www.unive.it/vera <https://www.unive.it/isba2024> https://www.unive.it/isba2024 -- Nota automatica aggiunta dal sistema di posta *Sostieni il futuro* Dona il tuo 5x1000 al Collegio Internazionale Ca' Foscari *FINANZIAMENTO DELLA RICERCA SCIENTIFICA E DELLA UNIVERSITÀ | CODICE FISCALE: 80007720271*

1 0

Milan Time Series Seminars (MiTSS)
by Luca Rossini 22 Sep '23

22 Sep '23

Dears, University of Milan (La Statale), University of Milan-Bicocca, FondazioneEniEnrico Mattei(FEEM), Polytechnic of Milan and BocconiUniversity invite you to the Milan Time Series Seminars (MiTSS). The goal of MiTSSis to bring together researchers with common interests in time series econometrics. The seminar provides a forum for researchers to present their work to a broad academic and professional audience. All the information on the location and on the speakers is available at https://sites.google.com/unimib.it/mitss <https://sites.google.com/unimib.it/mitss/home-page>/home-page <https://sites.google.com/unimib.it/mitss/home-page> and in the attached poster. Best wishes LucaRossini (on behalf of the Scientific Committee) -- 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

Fw: PhD position at TU Wien
by Avalos Pacheco, Alejandra 21 Sep '23

21 Sep '23

Ricevo e inoltro. Alejandra Avalos P. ________________________________ From: Ulrike Schneider <ulrike.schneider(a)tuwien.ac.at> Sent: 21 September 2023 14:32 Subject: PhD position at TU Wien Dear colleagues, the Econometrics group at TU Wien is announcing a job opening for a PhD position (for up to 4 years) in Mathematical Statistics/Econometrics. I would be grateful if you could forward the announcement to potentially interested candidates - thank you! Best wishes from Vienna, Ulrike

1 0

4th Italian Meeting on Probability and Mathematical Statistics: call for Contributed Sessions
by Michele Salvi 20 Sep '23

20 Sep '23

Dear all, The 4th Italian Meeting on Probability and Mathematical Statistics will be held in Rome from the 10th to the 14th of June 2024. The official website of the event is: https://probabilityrome2024.it/ The conference will take place in San Pietro in Vincoli <https://probabilityrome2024.it/venue/>, just a 4-minute walk away from the Colosseum and the Imperial Fora. The plenary speakers include Beatrice Acciaio (ETH Zürich), Francesco Caravenna (Milano Bicocca), Massimiliano Gubinelli* (Oxford) (*tbc), Cristina Toninelli (PSL Paris) and Lorenzo Rosasco (UniGe and MIT). Furthermore, on the afternoon of June the 12th, Professor Hugo Duminil-Copin (University of Geneva and Institut des Hautes Études Scientifiques), member of the Academia Europaea and winner of the Fields Medal in 2022, will give a colloquium <https://probabilityrome2024.it/protomoteca-seminar/> in the Protomoteca hall on the Capitoline Hill. The event will be followed by the conference dinner on the Terrazza Caffarelli, offering a unique view of Rome by night. We invite everyone interested in contributing to the event to submit proposals for a Contributed Session, please refer to the details provided here <https://probabilityrome2024.it/submission/>. Additionally, we welcome proposals for single Contributed Talks and Posters. Important deadlines - Submission of Contributed Sessions: 15 December 2023 - Registration: 31 March 2024 for early-bird fee We look forward to welcoming you to Rome, The organizers

1 0

Secondo annuncio: Convegno La Statistica al CNR al servizio del Paese
by Antonella Bodini 20 Sep '23

20 Sep '23

In occasione del Centenario del Consiglio Nazionale delle Ricerche, la sede milanese dell'Istituto di Matematica Applicata e Tecnologie Informatiche "E. Magenes" del CNR organizza la seconda edizione de "La Statistica al CNR al servizio del Paese", una giornata dedicata agli studi condotti da ricercatori CNR a favore dello sviluppo tecnologico, economico, sociale e culturale del Paese, in cui la Statistica ha un ruolo di rilievo. L'evento si svolgerà interamente online il 18 ottobre secondo il programma disponibile al sito [ http://stat100.mi.imati.cnr.it/ | http://stat100.mi.imati.cnr.it ] / I temi trattati spaziano dal clima alle relazioni tra inquinamento e salute, all’uso della statistica e dell’intelligenza artificiale per la salute e la sanità pubblica, ma si parlerà anche di protezione dei dati dagli attacchi informatici, di salute mentale, di terremoti, di protezione del nostro ricco patrimonio monumentale e di come la pandemia abbia cambiato il nostro modo di lavorare. La partecipazione è gratuita, ma la registrazione è obbligatoria per ricevere le indicazioni sulle modalità di partecipazione online. Con preghiera di massima diffusione tramite i vostri contatti, cordiali saluti. Antonella ----- Antonella Bodini CNR-IMATI via E. Bassini 15, 20133 Milano [ https://imati.cnr.it/mypage/people/BodiniAntonella.htm | https://imati.cnr.it/mypage/people/BodiniAntonella.htm ]

1 0

Fwd: assegni di ricerca progetto di eccellenza Roma Tor Vergata
by Lucia Caramellino 19 Sep '23

19 Sep '23

Ricevo e inoltro. Buona serata, Lucia +++++++++++++++++++++++++++++++++ Lucia Caramellino Dipartimento di Matematica Università di Roma “Tor Vergata” Web: http://www.mat.uniroma2.it/~caramell > Inizio messaggio inoltrato: > > Da: Filippo Bracci <fbracci(a)mat.uniroma2.it> > Oggetto: assegni di ricerca progetto di eccellenza > Data: 16 settembre 2023, 10:31:49 CEST > A: dipartimento(a)mat.uniroma2.it > > Carissime e carissimi, > > è stato pubblicato il bando per 4 assegni di ricerca biennali di III fascia (circa 25.000 euro annui al netto degli oneri) su ogni area della Matematica legata la progetto di eccellenza del Dipartimento di Matematica di Roma “Tor Vergata": > > https://pica.cineca.it/uniroma2/f3-2023-0008/ > > la scadenza per la presentazione delle domande è il 14 ottobre 2023. > > A presto > > Filippo > -- > ************************ > Prof. Filippo Bracci > Direttore/Head > Dipartimento di Matematica > Universita' di Roma "Tor Vergata" > Via della Ricerca Scientifica 1 > 00133 Roma - ITALIA > Tel: (+39-)06-7259 4643/4105 > Fax: (+39-)06-7259 4699 > E-mail: fbracci(a)mat.uniroma2.it > Web-page: www.mat.uniroma2.it/~fbracci >

1 0

Fwd: Postdoc in Bath
by Elisabetta Candellero 19 Sep '23

19 Sep '23

Ricevo e inoltro. Elisabetta ---------- Forwarded message --------- From: Matthew Roberts <mir20(a)bath.ac.uk> Date: Tue, Sep 19, 2023 at 10:00 AM Subject: Postdoc in Bath To: Marcel Ortgiese <ma2mo(a)bath.ac.uk> Dear all, We are currently advertising for a 3-year postdoc position in Bath to work with Marcel and me. The position starts on 1 March 2024 or as soon as possible thereafter. The postdoc is part of the EPSRC project "Interplay between geometry and randomness in fitness landscapes for expanding populations", but candidates will also be encouraged to work on other projects alongside this. If you know anyone who might be interested in a project at the intersection of branching processes, random media and stochastic processes in evolutionary biology, please forward our email. For more information about the university and how to apply, please see: https://www.bath.ac.uk/jobs/Vacancy.aspx?ref=ED10977 The application deadline is Wednesday 01 November 2023. Best wishes, Matt

1 0

Seminario Woess 27 settembre ore 14:30 Milano-Bicocca
by Daniela Bertacchi 17 Sep '23

17 Sep '23

Università di Milano-Bicocca *AVVISO DI SEMINARIO* Il prof. Wolfgang Woess (TU Graz, Austria), mercoledì 27 settembre, alle ore 14:30, nella stanza 3014 del Dipartimento di Matematica e Applicazioni (terzo piano U5), terrà un seminario dal titolo *Boundary behaviour of branching Markov chains* *Abstract: * We study multitype branching Markov chains on denumerable state(= type) spaces in discrete time. It is supposed that the offspring distributions satisfy a uniform "L log L" moment condition with state-independent expected offspring number, and that the associated "base" Markov chain on the state space is transient and irreducible. Given the population at time n at the different states, we normalize it by dividing by its total number. The resulting empirical distribution is a random probability measure on the state space. Assuming that the latter is equipped with a "geometric" compactification with a boundary at infinity, a main focus is on the question whether the sequence of empirical distributions converges a.s. weakly to a random probability distribution on the boundary. This is joint work with Vadim A. Kaimanovich (Ottawa), to appear in Ann. Inst Poincare' Prob. Stat. There is related, parallel work by Candellero and Hutchcroft. Tutti gli interessati sono invitati a partecipare.

1 0

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random