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[IFIP Performance 2025] Deadline Extended
by Zocca, A. (Alessandro) 29 May '25

29 May '25

Dear colleagues, We would like to inform you that the submission deadlines for the IFIP Performance 2025 conference have been extended by two weeks to allow authors additional time to prepare their contributions. Updated Deadlines: * Abstract registration: now due June 8, 2025 * Paper submission: now due June 15, 2025 We encourage you to take advantage of this extension and submit your latest research to the conference. Submission platform: https://performance2025.hotcrp.com/ Best regards, Alessandro Zocca On behalf of the IFIP Performance 2025 Organizing Committee

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OWABI@BioInference2025 - today at * 10.30am * UK time
by Massimiliano Tamborrino 29 May '25

29 May '25

Dear all, due to the conference running late, the OWABI www.warwick.ac.uk/owabi<http://www.warwick.ac.uk/owabi> seminars will start today at 10.30am UK time instead of 10am, as previously announced. The talks will be given by * Andrew Golightly (Durham University), Accelerating Bayesian inference for stochastic epidemic models using incidence data * Henrik Häggström (Chalmers University), Simulation-based inference for stochastic nonlinear mixed-effects models with applications in systems biology with abstracts reported below. The talks will be streamed on the OWABI MS Team Channel<https://teams.microsoft.com/l/team/19%3AdhZ_4e_XLNJzCXPAMzTvT6BZ5KShEETkd_w…> <https://teams.microsoft.com/l/team/19%3AdhZ_4e_XLNJzCXPAMzTvT6BZ5KShEETkd_w…> , at the link https://teams.microsoft.com/l/meetup-join/19%3adhZ_4e_XLNJzCXPAMzTvT6BZ5KSh… Meeting ID: 323 917 219 730 3 Passcode: Fk9JG3eB 1st OWABI Talk: 10.30-11am UK time Speaker: Andrew Golightly<https://www.durham.ac.uk/staff/andrew-golightly/> (Durham University) Title: Accelerating Bayesian inference for stochastic epidemic models using incidence data Abstract: This work considers the case of performing Bayesian inference for stochastic epidemic compartment models, using incomplete time course data consisting of incidence counts that are either the number of new infections or removals in time intervals of fixed length. The most natural Markov jump process representation of the model is eschewed for reasons of computational efficiency, and replaced by a stochastic differential equation representation. This is further approximated to give a tractable Gaussian process, that is, the linear noise approximation (LNA). Unless the observation model linking the LNA to data is both linear and Gaussian, the observed data likelihood remains intractable. Unlike previous approaches that use the LNA in this setting, two approaches for marginalising over the latent process are considered: a correlated pseudo-marginal method and analytic marginalisation via a Gaussian approximation of the noise model. These approaches are compared using synthetic data with the best performing method applied to real data consisting of removal incidence of Oak Processionary moth nests in Richmond Park, London. 2nd Seminar: 11-11.30am UK time Speaker: Henrik Häggström<https://research.chalmers.se/en/person/henhagg> (Chalmers University) Title: Simulation-based inference for stochastic nonlinear mixed-effects models with applications in systems biology Abstract: We propose a novel methodology for Bayesian inference in hierarchical mixed-effects models. By building on our work [1], we construct a simulation-based inference (SBI) framework that is highly scalable, where amortized approximations to the likelihood and the parameters posterior are first obtained, and these are rapidly refined for each individual dataset, to ultimately approximate the parameters posterior across many individuals. Unlike the current state-of-art SBI methods, which use neural networks, our approximations are expressed via Gaussian mixture models, leading to easily trainable, parsimonious yet expressive surrogate models of both the likelihood function and the posterior distribution. The methodology is exemplified via stochastic differential equation mixed-effects models to describe translation kinetics after mRNA transfection, however the methodology is general and can accommodate other types of stochastic and deterministic models. We compare our approximate inference with exact pseudomarginal inference and show that our methodology is fast and competitive. We are looking forward to seeing you at the next OWABI seminar(s), best, Massimiliano on the behalf of the OWABI Organisers ------ Dr. Massimiliano Tamborrino Reader (Associate Professor) and WIHEA Fellow Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino

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Seminario di Sam Power - Pavia, 3 giugno 2025 ore 15
by Carlo Orrieri 28 May '25

28 May '25

Martedì 3 giugno alle ore 15 presso il Dipartimento di Scienze Economiche e Aziendali (aula E, piano terra) dell'Università di Pavia, Sam Power (University of Bristol) terrà un seminario: titolo: Gradient Flow Methods for Statistical Computation - Trends and Trajectories abstract: When conducting statistical estimation and inference, it is relatively commonplace that the dominant computational burden takes the form of an optimisation task. This has long been recognised for tasks of parameter estimation, though there is an increasing recognition that other tasks of interest can be fruitfully interpreted as optimisation tasks over a space of probability measures, or even over some 'hybrid' space involving both parameters and measures. In this talk, I will survey some trends in this area, focusing on how this high-level perspective finds use in both analysis of popular existing algorithms and synthesis of novel algorithms. I will also highlight opportunities for future contributions in this fast-growing area. Tutti gli interessati sono invitati a partecipare. Un caro saluto Carlo Orrieri

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Seminario di Giorgio Cipolloni alla Sapienza
by Faggionato, Alessandra 28 May '25

28 May '25

Buongiorno Martedi' 3 Giugno alle ore 14:00 in Sala di Consiglio Giorgio Cipolloni (University of Arizona) terra' il seguente seminario Title: Logarithmically correlated fields from non-Hermitian random matrices Abstract: We study the Brownian evolution of large non-Hermitian matrices and show that their log-determinant converges to a 2+1 dimensional Gaussian field in the Edwards-Wilkinson regularity class, i.e. logarithmically correlated for the parabolic distance. This gives a dynamical extension of the celebrated result by Rider and Virag (2006) proving that the fluctuations of the eigenvalues of Gaussian non-Hermitian matrices converge to a 2 dimensional log-correlated field. Our result, previously not known even in the Gaussian case, holds out of equilibrium for general matrices with i.i.d. entries. We also study the extremal values of these fields and demonstrate their logarithmic dependence on the matrix dimension. Grazie dell'attenzione Buona giornata Alessandra ************************************************* 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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Bando di Dottorato MODELLI E METODI MATEMATICI E STATISTICI PER L’ECONOMIA E LA FINANZA, MEMOTEF SAPIENZA
by Claudia Ceci 28 May '25

28 May '25

Buongiorno, si avvisa che è stato pubblicato il bando per l’ammissione al corso di Dottorato di Ricerca (41° ciclo) in MODELLI PER L'ECONOMIA, IL TERRITORIO E LA FINANZA (Scuola di Dottorato in Economia), presso il Dipartimento MEMOTEF, Università di Roma "Sapienza" https://www.uniroma1.it/it/pagina/ammissione-ai-corsi-di-dottorato Il Dottorato si articola in due curricula, di cui uno dal titolo *MODELLI E METODI MATEMATICI E STATISTICI PER L’ECONOMIA E LA FINANZA. * Tutte le informazioni utili sono reperibili alla pagina: https://phd.uniroma1.it/web/concorso41.aspx?i=4045&l=IT *La scadenza per la presentazione delle domande è fissata inderogabilmente al * *19 giugno 2025, ore 23:59.* Si prega di darne massima diffusione tra i potenziali interessati. Grazie, Claudia Ceci *************************************************************************************************** Claudia Ceci Prof. I fascia STAT-04/A Dipartimento di Metodi e Modelli per l’Economia, il Territorio e la Finanza (MEMOTEF) Università di Roma La Sapienza Via Del Castro Laurenziano 9 Roma 00161 Email: claudia.ceci(a)uniroma1.it

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2nd Dolomites Winter School on Mean-field systems in finance, neurosciences and AI
by Andrea Pascucci 28 May '25

28 May '25

It is our pleasure to announce the *2nd Dolomites Winter School on Mean-field systems in finance, neurosciences and AI <https://sites.google.com/view/dolomitesws26>* * * which will take place in*Folgarida* on*January 11-16, 2026*. _Mission:_ The winter school is designed for Ph.D. students as well as early career researchers in the areas of probability, stochastic analysis, machine learning, mathematical finance. However, any researcher in these areas is encouraged to partecipate. It will take place in Folgarida, in the heart of the Dolomites, a world-renowned alpine destination and a World Heritage site since 2009, thanks to their beauty and unique landscapes. _Courses:_ * *Noufel Frikha* (Université Paris 1 - Panthéon Sorbonne), "McKean-Vlasov SDEs, Related PDEs on the Wasserstein Space, and Applications" * *Eva Löcherbach* (Université Paris 1 - Panthéon Sorbonne), "Modeling spiking neurons by interacting systems of point processes with variable memory" _Highlights:_ * *Free participation* (registration is compulsory) * Discounted accommodation rates available for reservations made *by September 15* (see the website)* * * *Contributed and poster sessions* for the participants _Further information available at_ https://sites.google.com/view/dolomitesws26 For special queries, please contact the organizers at:dolomitesws@gmail.com <mailto:ws25unibomi@gmail.com> -- --------------------------------------------------------------- Andrea Pascucciandrea.pascucci(a)unibo.it Dipartimento di Matematica P.zza di Porta S. Donato, 5 40126 Bologna - Italy Office Tel. +39-0512094428 Fax +39 0510821834 https://sites.google.com/view/andrea-pascucci/ Skype: andrea.pascucci https://unibo.zoom.us/j/8625962910 ---------------------------------------------------------------

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PhD Open Day – Mathematics at Sapienza University of Rome
by Lorenzo Taggi 27 May '25

27 May '25

We are pleased to announce that the *PhD Open Day for the Doctoral Program in Mathematics* at *Sapienza University of Rome* will take place on *Thursday, May 29th, 2025*. The event will include a presentation of the PhD program structure and research areas, including *PhD positions in Probability*. All students interested in pursuing a PhD in Mathematics, particularly in *Probability*, are warmly invited to attend. Please find the schedule at this link. <https://phd.uniroma1.it/web/presentazione-del-concorso-per-il-41-mo-ciclo_n…>

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Seminario Padova - Vanessa Jacquier
by Alberto Chiarini 27 May '25

27 May '25

Buongiorno a tutti, Vorremmo segnalarvi che venerdì prossimo (30 Maggio) alle ore 14:30 in aula 2AB30 (Torre Archimede, Università di Padova) ci sarà un seminario per il ciclo di seminari in Probabilità e Finanza di: Vanessa Jacquier (Università di Padova) Title: Discrete Nonlocal Isoperimetric Inequality and Analysis of the Long-Range Bi-Axial Ising Model Date: May 30, 2025, at 14:30, 2BC30 Abstract: We consider a generalization of the classical perimeter, referred to as the nonlocal bi-axial discrete perimeter, in which not only the external boundary of a polyomino contributes to the perimeter, but all its internal and external components. In particular, this nonlocal bi-axial perimeter is a fractional function that depends on the shape of the given geometrical figure and on a parameter λ>1, which accounts for the long-range effect. We tackle the nonlocal discrete isoperimetric problem analyzing and characterizing the minimizers within the class of polyominoes with a fixed area. The solution of this isoperimetric problem provides a rigorous foundation for studying the metastable behavior of the long-range bi-axial Ising model. Vi aspettiamo numerosi! Alberto Chiarini e Alekos Cecchin Sito web del seminario: https://www.math.unipd.it/~chiarini/seminars/

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Call for applications PhD in Mathematics UniTn-UniVr
by Luca Di Persio 27 May '25

27 May '25

Dear all, We are happy to announce the new call for applications to the 41st cycle of the PhD course in Mathematics<https://www.unitn.it/en/phd/mathematics> jointly conducted by the Department of Mathematics of the University of Trento<https://www.maths.unitn.it/en> and the College of Mathematics<https://www.univr.it/en/university/-/organo/mathematics-teaching-committee> of the Department of Computer Science of the University of Verona<https://www.di.univr.it/?lang=en>. Here you can find all the details https://www.unitn.it/sites/default/files/2025-05/MATHS_41_ENG_0.pdf Deadline: June 20th, 2025, at 16:00 (Italian time) Please feel free to forward this announcement to any students you think might be interested. All the best, LuCa __ Luca Di Persio - PhD College of Mathematics Dept. of Computer Science University of Verona strada le Grazie 15 - 37134 Verona - Italy Tel : +39 045 802 7968 Official UniVr spinoff: www.hpa.ai<http://www.hpa.ai/>

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Bando RTT Università di Pisa
by Mario Maurelli 27 May '25

27 May '25

Gentili colleghi, (English below) è aperta una procedura di selezione per l’assunzione di 1 Ricercatore a tempo determinato in tenure track (RTT) presso il Dipartimento di Matematica dell'Università di Pisa. Settore scientifico disciplinare (SSD): MATH-03/B - Probabilità e Statistica Matematica Accesso riservato: La selezione è aperta a coloro che: sono o sono stati, per una durata non inferiore a un anno, titolari di contratti da ricercatore “junior” (RTD-A), oppure sono o sono stati, per una durata complessiva non inferiore a tre anni, titolari di uno o più assegni di ricerca. Scadenza per la presentazione delle domande: ore 13:00 del 9 giugno 2025 Per ulteriori dettagli sulla procedura e i requisiti, vi invitiamo a consultare il bando completo disponibile sul sito dell'Università: https://bandi.unipi.it/public/Bandi/Detail/7adfad3c-c8be-46ac-b6dc-bc4b2a4c… English version: A call is open for a Researcher in Tenure Track (RTT) position at the Mathematics Department of the University of Pisa. Scientific disciplinary sector (SSD): Math-03/B - Mathematical probability and statistics Reserved access: the selection is open to those who have or have been, for a duration of not less than one year, holders of contracts as a researcher "Junior" (RTD-A) , or holders of post-doc positions for a total duration of not less than three years. Deadline for applications: 1PM, 9 June 2025 For further details on the procedure and requirements, we invite you to consult the complete announcement available on the university website: https://bandi.unipi.it/public/bandi/detail/7adfad3c-c8be-46ac-b6dc-bc4b2a4c… Cordiali saluti Mario Maurelli

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