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Seminar Federico Bassetti at Tor Vergata (Department of Mathematics) October 6, at 14h00
by Claudio Macci 03 Oct '25

03 Oct '25

Dear all, On Monday, October 6, at 14h00 in Aula Dal Passo of Tor Vergata Math Department, RoMaDS (https://www.mat.uniroma2.it/~rds/events.php) will host Federico Bassetti (Politecnico di Milano) with the seminar "Scaling Limits of Bayesian Neural Networks: Gaussian Processes and Mixtures” Abstract: In large neural networks, key theoretical insights emerge in the infinite-width limit, where the number of neurons per layer grows while depth stays fixed. In this regime, networks with Gaussian-initialized weights define a mixture of Gaussian processes with random covariance, which converges in the infinite-width limit to a pure Gaussian process with deterministic covariance. However, this Gaussian limit sacrifices descriptive power, as it lacks the ability to learn dependent features and produce output correlations that reflect observed labels. Motivated by these limitations, we explore deep linear networks in the proportional limit, where both depth and width diverge at a fixed ratio. In this setting, the network converges to a nontrivial Gaussian mixture, both at the prior and posterior level. This structure allows the network to capture dependencies in the outputs—an ability lost in the infinite-width limit but retained in finite networks. Our contribution extends previous works by explicitly characterizing, for linear activation functions, the limiting distribution as a nontrivial mixture of Gaussians. The talk is based on F. Bassetti, L. Ladelli, P. Rotondo. Proportional infinite-width infinite-depth limit for deep linear neural networks (2024+) https://arxiv.org/abs/2411.15267 Bassetti,F. Gherardi, M. Ingrosso, A. Pastore, M. Rotondo, P. Feature learning in finite-width Bayesian deep linear networks with multiple outputs and convolutional layers. Journal of Machine Learning Research 26 (2025) 1-35. We encourage in-person partecipation. Should you be unable to come, here is the link to the Teams streaming: https://teams.microsoft.com/l/message/19:rfsL73KX-fw86y1YnXq2nk5VnZFwPU-iIP… The seminar is part of the Excellence Project MatMod@TOV.

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Bando di concorso Tecnologo - Università di Padova Dipartimento di Scienze Statistiche - scadenza 29.10.2025
by Livia Mian 03 Oct '25

03 Oct '25

Gentilissimi/e, Il Dipartimento di Scienze Statistiche dell'Università di Padova ha indetto una selezione per esami al fine di reperire 1 Tecnologo di Ricerca di primo livello (categoria stipendiale pari a EP1) da assumere mediante contratto di lavoro a termine, a tempo pieno, per 24 mesi. Il Tecnologo fornirà supporto tecnico al team di ricerca impegnato nel progetto "*SPECOLA – Spatial Transcriptomics through the Lenses of Statistical Modeling and AI*" finanziato dallo European Research Council (ERC) e sarà chiamato a svolgere le seguenti attività: - installazione, configurazione e manutenzione dei software necessari all’analisi di dati biologici, quali ad esempio sequenze genomiche o immagini di microscopia, nei server ad alte prestazioni (HPC); - sviluppo, test e manutenzione di script e pacchetti software open-source per l’analisi di dati biologici, inclusa la produzione di binari e container; - monitoraggio dell’utilizzo delle risorse informatiche, garantendo le opportune misure di sicurezza e di prevenzione della perdita di dati; - collaborazione con il team di sviluppatori principali del progetto Bioconductor per la revisione, distribuzione, aggiornamento e manutenzione del software; - contribuzione alla redazione di documentazione tecnica e alla scrittura di report e articoli scientifici che descrivano i risultati ottenuti. Per i dettagli sui requisiti richiesti e le modalità di selezione si rinvia al bando: https://www.unipd.it/selezione-2025s48 La scadenza è fissata al *29 ottobre 2025 alle ore 14:00.* Cordiali saluti, Il Dipartimento di Scienze Statistiche **** Dear all, The Department of Statistical Sciences at the University of Padua has launched the selection process to recruit a Research Technologist (salary category EP1) with a full-time employment contract for 24 months. The candidate will provide technical support to the research team involved in the project "*SPECOLA – Spatial Transcriptomics through the Lenses of Statistical Modeling and AI*" and will be responsible for the following tasks: - Installation, configuration, and maintenance of the software necessary for the analysis of biological data, such as genomic sequences or microscopy images, on high-performance computing (HPC) servers; - Development, testing, and maintenance of open-source scripts and software packages for biological data analysis, including the production of binaries and containers; - Monitoring the use of computing resources, ensuring appropriate security measures and data loss prevention; - Collaboration with the core development team of the Bioconductor project for the review, distribution, update, and maintenance of software; - Contribution to the drafting of technical documentation and to the writing of reports and scientific articles describing the results achieved For more details on the requirements and selection process please check the call: https://www.unipd.it/selezione-2025s48 Application deadline *October 29, 2025, 14:00 CET. * Kind regards, The Department of Statistical Sciences --- Ufficio Ricerca Dipartimento di Scienze Statistiche Università degli Studi di Padova Tel. +39 049 827 4118

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First announcement: INdAM Workshop - Probability Models in Mathematical Physics (PMMP) - Rome, 15-19 June
by Elia Bisi 02 Oct '25

02 Oct '25

Dear colleagues, We would like to send you a first announcement of the INdAM Workshop Probability Models in Mathematical Physics (PMMP) - integrability, asymptotics, and universality Rome, 15-19 June 2026 The workshop has a broad scope from random matrices, integrable systems, operator and spectral theory, semiclassical analysis, combinatorics, including applications to quantum mechanics, disordered systems and related areas, all encompassed under the triple keyword 'integrability, asymptotics, and universality'. The invited speakers are: • Elena Agliari (Rome) • Luca Avena (Florence) • Marton Balazs (Bristol) • Sung-Soo Byun* (Seoul) • Elisabetta Candellero (Rome) • Tom Claeys (Louvain-La-Neuve) • Nilanjana Datta* (Cambridge) • Nina Gantert (Munich) • Cristian Giardinà (Modena and Reggio Emilia) • Alessandro Giuliani* (Rome) • Silvia Pappalardi* (Cologne) • Thierry Paul* (Paris) • Claude-Alain Pillet* (Toulon) • Valentina Ros (Paris) • Gregory Schehr (Paris) • Roland Speicher* (Saarbrücken) • Dario Trevisan (Pisa) • Karol Zyczkowski (Krakow) * To be confirmed Further information is available on the website: https://sites.google.com/view/pmmp2026 . Registration is free but mandatory through the web form at https://sites.google.com/view/pmmp2026/registration . Applicants can contribute a short talk or a poster. Some financial support to a limited number of young participants will be available. Applications can be submitted until January 31st, 2026, and will be reviewed in February 2026. Please note that the venue has a maximum capacity. For enquiry please contact us at pmmp2026rome(a)gmail.com . Best regards, Elia Bisi Fabio Deelan Cunden Giovanni Gramegna Marilena Ligabò ————————— Elia Bisi Assistant Professor (RTT) University of Florence Department of Mathematics & Computer Science Personal homepage Florence Probability group

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junior reserach chair - postdoctorat - Paris
by CRISTINA TONINELLI 01 Oct '25

01 Oct '25

Cari tutti, trovate qui sotto l’annuncio per un posto molto attrattivo (per salario, durata ed ambiente scientifico) bandito presso l’Università di Parigi PSL. Non esitate a diffonderlo e a segnalarlo ai vostri studenti più brillanti! Grazie, Cristina ------------------------------- 3-year Junior Research chairs, Statistical Physics and Mathematics, Paris Sciences et Lettres University PSL university is awarding two Junior Research Chairs (three-year positions) as part of its research programme 'Statistical Physics and Mathematics'. This programme gathers physicists and mathematicians from three departments: CEREMADE at University Paris Dauphine – PSL, Department of Mathematics and Applications at Ecole normale supérieure – PSL, LPENS at Ecole normale supérieure – PSL. Further details about the positions and the application procedure can be found here : https://academicjobsonline.org/ajo/jobs/30482 --------------------------------------------------------------------------------------------- Cristina Toninelli Postal Address: Ceremade Univ.Paris Dauphine Place du Marechal de Lattre de Tassigny 75775 Paris Cedex 16 - France Office: P207bis --------------------------------------------------------------------------------------------

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Fwd: Open position at HEC
by Roberto CASARIN 30 Sep '25

30 Sep '25

Dear all, I'm happy to share, regards Roberto Casarin ---------- Forwarded message --------- Da: David Ardia <david.ardia(a)hec.ca> Date: mar 30 set 2025 alle ore 15:44 Subject: Open position at HEC To: Roberto CASARIN <r.casarin(a)unive.it> Our Decision Sciences department is opening a tenure-track professor position in financial engineering/mathematical finance/quantitative finance. It might be of interest to your students, colleagues/networks. The department is really nice and the atmosphere is top-notch. It is an ideal environment for researchers and teachers to thrive. Additionally, Montréal is a lovely city that strikes a balance between a European lifestyle and North American energy. Please don't hesitate to contact me if you have any questions. Thanks a lot! David JOB POST HERE https://tre.tbe.taleo.net/tre01/ats/careers/v2/viewRequisition?org=NYQEDG&c… -- 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

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MOX COLLOQUIA - Mark Girolami - 9 Ottobre - Politecnico di Milano
by Laura Maria Sangalli 30 Sep '25

30 Sep '25

Cari Colleghi, vi segnalo il seguente seminario della serie dei MOX COLLOQUIA: 09.11.25 ore 14:00 - Aula Consiglio, Edificio 14, Politecnico di Milano Speaker: Mark Girolami, University of Cambridge, Department of Engineering and The Alan Turing Institute Titolo: Statistical Finite Element Methods Abstract: The finite element method (FEM) is one of the great triumphs of applied mathematics, numerical analysis and software development. Recent developments in sensor and signalling technologies enable the phenomenological study of complex natural and physical systems. The connection between sensor data and FEM has been restricted to solving inverse problems placing unwarranted faith in the fidelity of the mathematical description of the system under study. If one concedes mis-specification between generative reality and the FEM then a framework to systematically characterise this uncertainty is required. This talk will present a statistical construction of the FEM which systematically blends mathematical description with data observations by endowing the Hilbert space of FEM solutions with the additional structure of a Probability Measure. This initiative is part of the “Ph.D. Lectures” activity of the project "Departments of Excellence 2023-2027" of the Department of Mathematics of Politecnico di Milano. This activity consists of seminars open to Ph.D. students, followed by meetings with the speaker to discuss and go into detail on the topics presented during the talk. Contatto: laura.sangalli(a)polimi.it<mailto:laura.sangalli@polimi.it> Il seminario sarà accessibile online: https://mox.polimi.it/mox-colloquia-seminars-list/mox-seminars/?id_evento=2… https://cassyni.com/events/LTNPwiAikdgXq3b4oMwNvR Per seguire il seminario in streaming, è necessario iscriversi (gratuitamente) sulla piattaforma Cassyni. Seguirà rinfresco presso il Dipartimento di Matematica. Cordiali saluti, 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

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Full professor position at Linz (Austria)
by Stefano Bonaccorsi 29 Sep '25

29 Sep '25

Professorship for Stochastics The Faculty of Engineering and Natural Sciences at the Johannes Kepler University Linz invites applications for a permanent professorship position under private law for a Professor of Stochastics to begin as soon as possible. The appointment is in accordance with § 98 of the Austrian Universities Act. An evaluation will be conducted after a five-year period. The successful candidate is expected to head the Institute of Stochastics, and represent and further develop research and teaching in the field of Stochastics. Please see the job opening for a detailed job description online at http://www.jku.at/professuren -- ________________________________ *My working hours may differ from yours, so feel free to respond at your convenience* Prof. Stefano Bonaccorsi Direttore Dipartimento di Matematica Università di Trento +39 0461 281621

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PhD Scholarships @ Warwick
by Giuseppe Cannizzaro 29 Sep '25

29 Sep '25

Care/i colleghe/i, desideravo farvi presente questa possibilità di dottorato a Warwick e spero possiate informare studenti interessati. Cordiali saluti, Giuseppe ------------------------------------------------- The Probability group at the University of Warwick (*P@W <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…>*) is looking for talented students to undertake their *PhD studies* with us. The successful applicant will join one of the *largest probability groups <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…>* worldwide with an established track record of high-quality research and a broad range of interests <https://warwick.ac.uk/fac/sci/statistics/research/probability-at-warwick/re…>. The Probability group is *joint *between the Mathematics and Statistics Department and you can apply to either or *both* (recommended). See P@W <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…> for a list of potential supervisors and their affiliation; *co-supervision* is possible and encouraged. The appointments include · *fully funded scholarships* for both UK and international students of the duration of 4 years; · a *travel allowance* for schools, workshops and conferences; · a *training fund* for extended research stays. Applications are received and assessed throughout the year on a *first-come-first-served basis. *For more information on funding please visit the webpage at the following *link <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…>* . The programme consists of 6 months of *research training* with the possibility to attend graduate level courses taught by leading experts. Further, it is enriched by a variety of activities: 3 dedicated weekly *seminars*; *research focus groups* on cutting-edge topics; minicourses, workshops and conferences, ensuring a continued presence of international and distinguished visitors. Useful links: - P@W group: https://warwick.ac.uk/fac/sci/statistics/research/probability-at-warwick/ <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…> - Research at P@W: https://warwick.ac.uk/fac/sci/statistics/research/probability-at-warwick/re… <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…> - Fundings: https://warwick.ac.uk/fac/sci/statistics/postgrad/centre-for-doctoral-train… <https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwarwick.a…> - CDT in Statistics: https://warwick.ac.uk/fac/sci/statistics/postgrad/centre-for-doctoral-train… - CDT in Mathematics: https://warwick.ac.uk/fac/sci/maths/currentstudents/currentpostgraduates/ph…

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Oct 21 - Stats seminars Geneletti and Wrobleski @ Sapienza MEMOTEF
by Francesca Panero 29 Sep '25

29 Sep '25

Buongiorno a tutti, On Tuesday 21st of October at the MEMOTEF Department, Sapienza University, we will have the pleasure to listen to the seminars of Prof Sara Geneletti<https://www.lse.ac.uk/statistics/people/sara-geneletti> and the PhD student Trevor Wrobleski<https://trevorwrobleski.github.io/> from the Department of Statistics of the London School of Economics and Political Science. The seminars will take place 10-11am in Laboratorio Antonio Amato - Sala Corsi (on the third floor of Palazzina Presidenza, the staircase at the entrance of the Economics building, Via del Castro Laurenziano 9). You can find titles and abstracts below. Best wishes, Francesca Sara Geneletti Bayesian interrupted time-series models and their applications on welfare and mental health This talk is an overview of the research output of the Epitome project funded by the Wellcome Trust. The project involved 4 research streams, and we showcase results from each one of them. The main aims of this project were to a) understand the impact of Conservative government and their "austerity" policy which led to widespread cuts in social spending and b) to develop novel methodologies in the context of interrupted time series designs using Bayesian methods. Our project found that changes in welfare benefits had a detrimental effect on mental health which also had a spatial dimension, and that the impact of the "hostile environment policy", an anti-immigration policy on the mental health of African and Carribean communities was negative. We further extended the Bayesian Structural Time Series approach to accommodate multiple data points and confirmed the impact of the hostile environment policy using this alternative method. Finally, we developed a Cohort Markov Model to evaluate the impact of the welfare benefits change by looking at how it impacted different segments of the population. Trevor Wrobleski Robustness and Sensitivity in Bayesian Dose-Response Risk Assessment Bayesian methods are increasingly central to toxicological risk assessment, yet their application to sparse dose-response data presents unique challenges. This presentation examines three drivers of analytical robustness: (i) the choice of likelihood for overdispersed quantal data, (ii) the inferential impact of selective dose-group deletion, and (iii) the sensitivity of results to prior specification. Using simulations and a case study of antimony trioxide carcinogenicity, we quantify the impact of these choices on benchmark dose (BMD) estimates and the posterior distribution, using metrics like Mean Squared Error and symmetrized Kullback-Leibler (KL) divergence. Our findings show that modeling overdispersion with a Beta-Binomial likelihood is important for accurate uncertainty quantification. We also demonstrate that deleting informative mid-range dose groups can degrade precision and shift inference. Finally, for the Dichotomous Hill model, the prior on the Hill coefficient is the dominant lever on the BMD, capable of inducing multi-fold changes in the risk estimate. ------------------------------------------- Dr Francesca Panero (she/her) Assistant Professor in Statistics (RTT), Department of Methods and Models for Economics, Territory and Finance Sapienza University, Rome Visiting Fellow, Department of Statistics London School of Economics and Political Science Visiting Lecturer, Faculty of Informatics Università della Svizzera Italiana Website: https://francescapanero.github.io

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Seminario di Matematica, Scienza e Società al Dipartimento di Matematica- Sapienza
by Faggionato, Alessandra 29 Sep '25

29 Sep '25

Buongiorno, ricevo e con piacere inoltro. Buona giornata Alessandra ************************************************************* Avviso di seminario di Matematica, Scienza & Società Lunedì 6 ottobre 2025, alle ore 17.00 Sala di Consiglio del Dipartimento di Matematica G. Castelnuovo di Sapienza Università di Roma *Guido Barbujani (Università di Ferrara)* *Evoluzione della pigmentazione negli europei della preistoria* Sommario Oggi sembra scontato che chi ha origini europee abbia anche la pelle bianca, ma è così solo da poche generazioni. Lo studio del DNA antico permette di ricostruire come e quando sia cambiato il nostro aspetto (e anche quello dei nostri parenti neandertaliani), attraverso millenni di selezione naturale e migrazioni. -- ************************************************* Prof. Alessandra Faggionato https://www1.mat.uniroma1.it/people/faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 123, first floor *************************************************

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