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An Autumn Day in Probability and Statistical Physics: Firenze, 25/10/2024 dalle 10:30
by Gianmarco Bet 18 Sep '24

18 Sep '24

Care colleghe e colleghi, Il 25 Ottobre dalle 10:30 si terrà al Dipartimento di Matematica e Informatica dell’Università di Firenze (Viale G. Morgagni 67) la quattordicesima giornata di seminari ``An Autumn Day in Probability and Statistical Physics''. SPEAKERS e PROGRAMMA DELLA GIORNATA: 10:30 Welcome coffee 11:00 - 12.45 Morning speaker: Prof. Marielle Simon (Université Lyon 1), Title: ``On exclusion processes with phase separation" 13:00 - 14:30 Lunch 14:30 - 16.15 Afternoon speaker: Prof. Michel Mandjes (Leiden University), Title: ``Dynamic random graphs: analysis and inference" Vedi in fondo al messaggio per gli abstracts. Per una migliore organizzazione, chiediamo cordialmente a coloro che fossero interessati di compilare il seguente Google Form per indicare l'intenzione di partecipare alla giornata e in particolare al pranzo: link <https://docs.google.com/forms/d/e/1FAIpQLSeqo4UjeP8hcVCzXwTk6I_zNzBq_AJ3z6x…> Maggiori informazioni, sono reperibili alla pagina web dell’evento: https://sites.google.com/unifi.it/florence-probability-group/home/days-in-p… <https://www.google.com/url?q=https://sites.google.com/unifi.it/florence-pro…>. Vi aspettiamo numerosi e vi preghiamo di diffondere l’annuncio con chi pensiate possa essere interessata/o, in particolare giovani ricercatrici e ricercatori! Luisa Andreis, Luca Avena e Gianmarco Bet 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. ABSTRACTS ____________________________________________ SPEAKER: Prof. Marielle Simon (Université Lyon 1) TITLE: ``On exclusion processes with phase separation" ABSTRACT: "Stochastic lattice gases" are models of interacting particles subject to stochastic dynamics. They have been widely studied for about thirty years by both mathematicians and physicists. Their structure makes it possible to analyse them rigorously, while illustrating numerous physical phenomena: in particular, one of the main objectives is to prove rigorously the convergence of the microscopic system towards a macroscopic PDE, after rescaling in time and space (also known as the ‘hydrodynamic limit’). In the first lecture I will give several illustrations of this convergence result thanks to the most well-known example, namely the symmetric simple exclusion process. In the second lecture, I will show how to enrich these models in order to derive some phase separation at the macroscopic level, with a free boundary that moves within the system. SPEAKER: Prof. Michel Mandjes (Leiden University) TITLE: Dynamic random graphs: analysis and inference ABSTRACT: The bulk of the random graph literature concerns models that are of an inherently static nature, in that features of the random graph at a single point in time are considered. There are strong practical motivations, however, to consider random graphs that are stochastically evolving, so as to model networks’ inherent dynamics. In this talk I’ll discuss a set of dynamic random graph mechanisms and their probabilistic properties. Key results cover functional diffusion limits for subgraph counts (describing the behaviour around the mean) and a sample-path large-deviation principle (describing the rare-event behaviour, thus extending the seminal result for the static case developed by Chatterjee and Varadhan). The last part of my talk will be about estimation of the model parameters from partial information. We for instance demonstrate how the model’s underlying parameters can be estimated from just snapshots of the number of edges. We also consider settings in which particles move around on a dynamically evolving random graph, and in which the graph dynamics are inferred from the movements of the particles (i.e., not observing the graph process).

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Workshop 21-23 October 2024 University of Genova
by Monia Lupparelli 17 Sep '24

17 Sep '24

Dear colleagues, the trees4cat Workshop (Trees for Categorical Data) aims to strengthen the network of researchers working on asymmetric independence and models for contingency tables. We invite contributions to the workshop. Topics of interest include, but are not limited to, contingency tables, staged trees, asymptotic theory, software implementations, and algebraic statistics. Key details about the workshop: • Workshop Title: trees4cat (Trees for Categorical Data) • Dates: 21-23 October 2024 • Location: Department of Mathematics, University of Genoa, Italy • Abstract Submission Deadline: 30 September 2024 Submit your abstract here: https://tinyurl.com/trees4catabs • Registration: https://tinyurl.com/trees4catreg (Please note: participants can register also after the abstract submission deadline.) • Financial Support: Partial financial support is available for a few participants. • Workshop Webpage: https://stagedtrees.github.io/events/trees4cat.html Confirmed Speakers: • Eliana Duarte (University of Porto) • Maria Kateri (RWTH Aachen University) • Manuele Leonelli (IE University) • Tamás Rudas (Eötvös Loránd University) • Jim Smith (University of Warwick) • Liam Solus (KTH University) There will be two tutorials on the first day of the workshop, especially for PhD students and early career researchers. Call for Journal Submissions: Participants are encouraged to submit articles on the topics of the workshop to the Algebraic Statistics journal. Articles will be handled by members of the organising committee, and accepted papers will appear in a single issue. We look forward to your participation in trees4cat. Should you have any questions, please feel free to contact us at Manuele.leonelli(a)ie.edu Best regards, The Organizing Committee https://stagedtrees.github.io/events/trees4cat.html -- Monia Lupparelli Associate Professor +(39) 055 2751517 UNIVERSITÀ DEGLI STUDI DI FIRENZE Dipartimento di Statistica, Informatica, Applicazioni "G. Parenti" (DISIA) --

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Workshop on Stochastic Processes, Stochastic Optimal Control, and their Applications, Politecnico di Milano, September 26-27, 2024 - Reminder
by Alessandro CALVIA 17 Sep '24

17 Sep '24

Dear colleagues, this is a gentle reminder about the upcoming workshop on Stochastic Processes, Stochastic Optimal Control, and their Applications, to be held at Politecnico di Milano, Department of Mathematics, Aula Consiglio (7th floor) on September 26-27, 2024. The workshop is dedicated to Professor Marco Fuhrman, on the occasion of his 60th birthday. The official program is now available on the website https://www.mate.polimi.it/events/SPOCA/ The workshop begins on Thursday, September 26, at 15:30 (registration opens at 15:00) and ends on Friday, September 27, at 12:40. Attendance is possible only in presence upon registration, which is free but mandatory. Unfortunately, we cannot offer financial support. If you are interested in attending, please use the registration form (available until Friday, September 20) on the official website of the workshop, where you can also find some general travel information and suggestions on hotels near Politecnico di Milano. For any further information, please contact spoca-dmat(a)polimi.it<mailto:spoca-dmat@polimi.it> . Best regards, The organizing committee Alessandro Calvia (Università degli Studi di Parma) Luciano Campi (Università degli Studi di Milano) Fulvia Confortola (Politecnico di Milano) Andrea Cosso (Università degli Studi di Milano) Giuseppina Guatteri (Politecnico di Milano) Mattia Martini (Université Côte d’Azur) Firma il tuo 5xmille all’Università di Parma. Aiutaci a potenziare la capacità di accoglienza, soprattutto abitativa, per le studentesse e gli studenti. - Indica 00308780345 nella tua dichiarazione dei redditi.

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Avviso di seminario
by Barbara Martinucci 16 Sep '24

16 Sep '24

*Università di SalernoDipartimento di Matematica* *AVVISO DI SEMINARIO* Il Prof. Alfonso Suárez-Llorens (Universidad de Cádiz. Dpto. Estadística e I.O.) terrà, venerdì 20 settembre, alle ore 12:00, presso la Sala Riunioni dell'Edificio F2 (piano 1, stanza 36), un seminario dal titolo: *Extreme Value Distributions and Their Shape* Gli interessati sono cordialmente invitati a partecipare, *Antonio Di CrescenzoBarbara MartinucciAlessandra MeoliSerena Spina* *Link su Teams*: https://teams.microsoft.com/l/meetup- join/19%3ameeting_YWUzZDAyMjgtZDE3YS00NDk1LTlmZmItYmExNjc4Njg2ODE1%40thread.v2/0?context=%7 b%22Tid%22%3a%22c30767db-3dda-4dd4-8a4d-097d22cb99d3%22%2c%22Oid%22%3a%2261e4e421-60a6-4cb9- 8153-d04cb91c1edf%22%7d ID riunione: 345 585 611 215 Passcode: 9P9iwD *Abstract* This talk will cover Extreme Value Theory and its key results on convergence, focusing on the Generalized Extreme Value (GEV) family and the Generalized Pareto Distribution (GPD) family. Additionally, we will explore the concept of the shape of a distribution and how it can be used to characterize GEV and GPD distributions. This characterization can serve as the basis for developing a graphical tool to assess tail weight. The presentation will conclude with a real-world example applied to environmental data.

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Mathematics for our Health, 2024, Politecnico di Milano
by Laura Maria Sangalli 16 Sep '24

16 Sep '24

Siamo molti lieti di invitarvi al workshop Mathematics for our Health, 2024, che si terrà presso il Politecnico di Milano nei giorni 7-8 Novembre https://www.mate.polimi.it/events/M4H24/ Si tratta di un’iniziativa supportata dal Progetto di Dipartimento di Eccellenza 2023-2027, del Dipartimento di Matematica del Politecnico di Milano. Tutti gli interessati sono cordialmente invitati a partecipare. Scadenza per la registrazione all’evento (gratuita ma necessaria per ragioni organizzative) e per la sottomissione di contributi: **30 Settembre**. Un caro saluto, 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<mailto:laura.sangalli@polimi.it> https://sangalli.faculty.polimi.it

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Seminars in Statistics - Arturo Kohatsu-Higa (Ritsumeikan University, Japan)
by Pierpaolo De Blasi 16 Sep '24

16 Sep '24

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 20 Settembre 2024, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ *12.00-13.00* Speaker: Kohatsu-Higa (Ritsumeikan University, Japan) Title: *Derivation of killed processes: Applications in Finance* Abstract: In various fields including some in finance it is useful to have the concept of derivative of a killed process or a stopping time. We have started a project where such concepts can be discussed. Presently, we are developing some theoretical results that can be later applied. We will give a brief description of the project, achieved goals and some heuristics. I will present some results that have been obtained in joint work with Dan Crisan (Imperial College) in the one dimensional case and in the half space case. The generalizations of these results to the case of a smooth domain are being developed with Fabio Antonelli (University of L’Aquila). I will also briefly describe some possible financial applications. ------------------------------------------------ Sarà possibile seguire entrambi i seminari anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/89801479465?pwd=knhLbOfMHOc7L7ScTWFkPJqEO3zXRK.1> I seminari sono organizzati 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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NEW SEMINAR SERIES: econOMEtRics in Rome
by Alessia Caponera 16 Sep '24

16 Sep '24

Dear colleagues, I would like to advertise the NEW SEMINAR SERIES: *econOMEtRics in Rome* The objective of this seminar series is to bring together academics and practitioners with a shared interest in econometrics. The series is co-organized by Gianluca Cubadda (School of Economics, Tor Vergata University of Rome), Massimo Franchi (Department of Statistical Sciences, Sapienza University of Rome), Tommaso Proietti (School of Economics, Tor Vergata University of Rome), and Paolo Santucci de Magistris (Department of Economics and Finance, Luiss University). The seminars will be hosted alternately at three locations: the Department of Economics and Finance at Luiss University, the Department of Statistical Sciences at Sapienza University of Rome, and the facilities of the School of Economics at Tor Vergata University of Rome (Via Lucullo 11, 00187 Rome). Visit the seminar series webpage econOMEtRics in Rome and subscribe to the mailing list to stay informed: https://lnkd.in/dT6auwxt <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flnkd.in%2…> Best wishes, Alessia Caponera

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1st CAM-Risk conference, December 18-20, 2024 Pavia
by Giacomo Bormetti 13 Sep '24

13 Sep '24

Dear Colleagues, This is a reminder that the deadline (September 30, 2024) for paper submission to the 1st CAM-Risk conference, which will be held in Pavia in December 2024, is approaching. More information about the event is available at the following link https://economiaemanagement.dip.unipv.it/en/research/research-teams-and-top… Topics of interest, without being exhaustive, concern 1. Growth and business cycle analysis 2. Quantitative Finance and Econometrics 3. New risks and financial stability 4. Migration, trade, and the labor market 5. Climate change and energy policies 6. European issues 7. The economic, social, and political impact of COVID-19 and the risks of future epidemics We are looking forward to meeting you in Pavia. Kind Regards Giacomo Bormetti Elena Molho

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Jean Jacod seminar in Verona, 25/9/24 at noon
by Cecilia Mancini 13 Sep '24

13 Sep '24

Dear all, on Wednesday 25 September, at noon, Professor Jean Jacod will give the seminar High Frequency Returns Sign-Based Robust Inference, at the Department of Economics in Verona, via Cantarane 24, aula Vaona (from the main entrance of the main building in Santa Marta turn left, metal stairs, 1st floor, ring the bell on the right, staircase with 3 steps, room on the left) It is possible to follow it also on zoom at the following link: https://univr.zoom.us/j/94276571806 Abstract We derive the limit of infill asymptotic distribution for the sum of positive returns of prices or log-prices in a given period of time. The framework is multivariate and quite general: it allows for the presence of leverage effects and jumps with finite activity. In a second step, the results are used to estimate the drifts (or rather, the Sharpe ratios) of the continuous part of the processes. Joint work with Nour Meddahi All interested people are warmly invited to take part Best regards in the meantime, Cecilia

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Seminar Anna Calissano @LUISS
by Alessia Caponera 13 Sep '24

13 Sep '24

Dear all, The Department of Economics and Finance at LUISS University in Rome (*https://economiaefinanza.luiss.it <https://economiaefinanza.luiss.it/>*) is pleased to announce the following seminar: *Speaker*: Anna Calissano, Imperial College London *Title*: *Barycentric Subspace Analysis for Sets of Graphs* *When*: September 19th, 12:00 *Where*: Viale Romania, 32 00197 Rome *Meeting room*: 103a-103b *Abstract*: Barycentric subspace analysis (BSA) is introduced for a set of unlabelled graphs, which are graphs with no correspondence between nodes. Identifying each graph by the set of its eigenvalues, the graph spectrum space is defined as a novel and computationally efficient quotient manifold of isospectral graphs. In such a manifold, the notion of BSA is extended. We showcase how BSA can be used as a powerful dimensionality reduction technique for complex data: BSA searches for a subspace of a lower dimension, minimizing the projection of data points. As the subspace is identified by a set of reference points, the interpretation is straightforward. BSA is performed and compared with clustering and PCA on a simulated dataset and a real-world dataset of airline company networks. Joint work with Elodie Maignant, Alain Trouvé, and Xavier Pennec *Webpage*: *https://economiaefinanza.luiss.it/research-seminar/barycentric-subspace-analysis-for-sets-of-graphs <https://economiaefinanza.luiss.it/research-seminar/barycentric-subspace-ana…>* *Should you be interested, please kindly send me an email.* Best wishes, Alessia Caponera

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