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Politecnico di Milano - MOX Colloquia - Simon Wood
by Laura Maria Sangalli 11 Mar '24

11 Mar '24

Si avvisa che in data 14-03-2024, alle ore 14:30 precise presso il Politecnico di Milano, in aula Consiglio (settimo piano Dipartimento di Matematica - edificio 14), si svolgerà il seguente seminario della serie MOX Colloquia Simon Wood, School of Mathematics, University of Edinburgh Titolo: On Neighbourhood Cross Validation Abstract: Cross validation is a well known method for estimating hyperparameters in complex regression models. It comes in many varieties, but some of the more interesting flavours require multiple model fits with consequently high cost. This talk shows how the high cost can be side-stepped for a wide range of models estimated using a quadratically penalized smooth loss, with rather low approximation error. Once the computational cost has the same leading order as a single model fit, it becomes feasible to efficiently optimize the chosen cross-validation criterion with respect to multiple smoothing/precision parameters. Interesting applications include cross-validating smooth additive quantile regression models, and the use of leave-out-neighbourhood cross validation for dealing with nuisance short range autocorrelation. The link between cross validation and the jackknife can be exploited to obtain reasonably well calibrated uncertainty quantification in these case. 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-colloquia-seminars-list/mox-seminars/?id_evento=2… 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<mailto:laura.sangalli@polimi.it> https://sangalli.faculty.polimi.it

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Seminar: Andrea Capozzo March 19, 2024, Ca' Foscari University of Venice
by Carlo Gaetan 09 Mar '24

09 Mar '24

Dear all, we are glad to announce the following hybrid seminar *March 19, 2024, 12:15 PM* *Where*: Aula Delta 2C- edificio Zeta (Campus Scientifico), Via Torino, 155 Mestre (Venice, Italy) Zoom: https://unive.zoom.us/j/85153268624?pwd=MzBhdlA2M1B2dThJQ2Y5T0EwUE5PZz09 *Speaker*: Andrea Cappozzo, Università degli Studi di Milano (Milano, Italy) *Title*: Penalized mixed-effects multitask learning: a framework for regularizing multilevel models with applications on DNA methylation biomarkers creation *Abstract:* Linear mixed modeling is a well-established technique widely employed when observations possess a grouping structure. Nevertheless, this standard methodology is no longer applicable when the learning framework encompasses a multivariate response and high-dimensional predictors. To overcome these issues, a penalized estimation scheme based on an expectation-maximization (EM) algorithm is proposed, in which any penalty criteria previously devised for fixed-effects models can be conveniently incorporated into the fitting process. We employ the novel methodology for creating surrogate biomarkers of cardiovascular risk factors, such as lipids and blood pressure, from whole-genome DNA methylation data in a multi-center study. The proposed approach shows promising results in both predictive accuracy and bio-molecular interpretation compared to state-of-the-art alternatives. Based on joint work with Francesca Ieva and Giovanni Fiorito. Visit this page https://www.unive.it/pag/41970/ for updates on our seminars. Best regards, Carlo Gaetan -- - Dipartimento di Scienze Ambientali, Informatica e Statistica - DAIS Università Ca' Foscari - Venezia Z.A12 - Edificio Zeta Via Torino, 155 I-30172 Mestre (VE) ITALY phone: ++39 041 234 8404 e-mail:[gaetan"at"unive"dot"it] web:[http://www.dais.unive.it/~gaetan] Please don't print this e-mail unless you really need to. Please avoid sending me Word, Excel or PowerPoint attachments. Seehttp://www.gnu.org/philosophy/no-word-attachments.html. Per favore non stampate questo messaggio se non è proprio necessario. Per favore non mandatemi allegati in Word, Excel o PowerPoint. Le ragioni sono spiegate quihttp://www.gnu.org/philosophy/no-word-attachments.it.html

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PSPDE XII @ Trieste, 9-13/09/24
by SAU FEDERICO 09 Mar '24

09 Mar '24

Dear all, We are very happy to announce the upcoming workshop PSPDE (Particle Systems and PDEs), to be held in Trieste from the 9th to the 13th of September 2024. Here<https://sites.google.com/view/pspdexii> is the link of the website. The aim of this series of conferences is to bring together established and young researchers in the area of particle systems, kinetic theory and PDEs. This is the 12th edition of the series. As in the previous editions, we plan to have around 20 invited talks, two mini courses and two poster sessions. The two mini course lecturers will be Pietro Caputo (RomaTre University) and Chiara Saffirio (University of Basel). Registration is free but mandatory. Participants presenting a poster and registering (here<https://docs.google.com/forms/d/e/1FAIpQLScLM2KqA9BXX27xxP0sXFCYNOFhAMva_bC…>) before the deadline (April 1) may apply for partial financial support. Hoping to see many of you! The organizers, Gioia Carinci, Chiara Franceschini (University of Modena), Patricia Gonçalves (University of Lisbon, IST), Federico Sau (University of Trieste), and Ana Jacinta Soares (University of Minho)

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Johns Hopkins University - UniBo conference "Noncommutativity at the Interface of Topology, Geometry and Analysis"
by Giacomo De Palma 08 Mar '24

08 Mar '24

Dear all, we are happy to announce the first Johns Hopkins University - University of Bologna Conference "Noncommutativity at the Interface of Topology, Geometry and Analysis", which will be held in Bologna on June 24 - 28, 2024. Noncommutativity is a broad term that occurs in many areas of mathematics. Recently, there have been major developments around noncommutative phenomena related to all fundamental aspects of mathematics. The aim of the conference is to bring together experts in these diverse areas to share new ideas, discuss major recent advances and propose possible future directions. The invited speakers include: * Jacob Bernstein (Johns Hopkins University, Baltimore, MD) * Luca Capogna (Smith College, Northampton, MA) * Alain Connes (Collège de France, Paris, France and IHES, Bures-sur-Yvette, France) * Enrico Le Donne (University of Fribourg, Fribourg, Switzerland) * Bruno Franchi (University of Bologna, Bologna, Italy) * Shouhei Honda (Tohoku University, Sendai, Japan) * Kalina Mincheva (Tulane University, New Orleans, LA) * Jack Morava (Johns Hopkins University, Baltimore, MD) * Masanori Morishita (Kyushu University, Fukuoka, Japan) * Henri Moscovici (Ohio State University, Columbus, OH) * Detlef Müller (Kiel University, Kiel, Germany) * Giovanni Paolini (University of Bologna, Bologna, Italy, to be confirmed) * Thorsten Schimannek (Utrecht University, Utrecht, Netherlands) * Vyacheslav Shokurov (Johns Hopkins University, Baltimore, MD) * Robert Young (NYU Courant Institute of Mathematical Sciences, New York, NY). You can find more information and the registration form on the conference website: https://sites.google.com/view/noncommutativity/ [https://lh3.googleusercontent.com/bel9z864PzAXkN5BHgx67VmQSha3RYyTG3EtZILOg…]<https://sites.google.com/view/noncommutativity/> First JHU - UNIBO Conference<https://sites.google.com/view/noncommutativity/> Speakers. Jacob Bernstein (Johns Hopkins University, Baltimore, MD) Luca Capogna (Smith College, Northampton, MA) Alain Connes (Collège de France, Paris, France and IHES, Bures-sur-Yvette, France) Enrico Le Donne (University of Fribourg, Fribourg, Switzerland) Bruno Franchi (University of sites.google.com The registration is free but mandatory; we can offer upon request some financial support for travel and lodging. Best, the organizing committee: Giovanna Citti Caterina Consani Giacomo de Palma Mattia Galeotti Antonella Grassi Mee Seong Im Mikhail Khovanov Nitu Kitchloo Vittorio Martino Yannick Sire Eugenio Vecchi

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Seminar: Marco Carfagnini at Tor Vergata 25.09
by Michele Salvi 08 Mar '24

08 Mar '24

Dear all, We are happy to announce that on Monday, September 25th, at 15h00 in Aula Dal Passo of Tor Vergata Math Department, RoMaDS (https://www.mat.uniroma2.it/~rds/about.php) will host Marco Carfagnini (University of California San Diego) with the seminar "Spectral gaps via small deviations” Abstract: In this talk we will discuss spectral gaps of second order differential operators and their connection to limit laws such as small deviations and Chung’s laws of the iterated logarithm. The main focus is on hypoelliptic diffusions such as the Kolmogorov diffusion and horizontal Brownian motions on Carnot groups. If time permits, we will discuss spectral properties and existence of spectral gaps on general Dirichlet metric measure spaces.This talk is based on joint works with Maria (Masha) Gordina and Alexander (Sasha) Teplyaev. We encourage in-person partecipation. Should you be unable to come, here is the link to the Teams streaming: https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw…"Tid"%3a"24c5be2a-d764-40c5-9975-82d08ae47d0e"%2c"Oid"%3a"650fc4a8-4cec-4bd2-87bc-90d134074fe6”} <https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw…> . The seminar is part of the Excellence Project MatMod@TOV.

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MaLGa Summer Schools 2024 in Genoa, Italy -- Application/Registration open
by ernesto.devito＠unige.it 07 Mar '24

07 Mar '24

As part of the scientific activity and educational offer of MaLGa - Machine Learning Genoa Center (https://malga.unige.it/) we are glad to announce that applications are open for the following PhD courses: DLCV - Deep Learning and Computer Vision 2024, two crash courses, one school (https://malga.unige.it/education/schools/dlcv2024) to be held 10-14 June 2024 Instructors: Francesca Odone, Nicoletta Noceti The third edition of the DLCV (Deep Learning and Computer Vision) School provides a hands-on introduction to basic principles of deep learning, computer vision, and their strong interconnection. *Apply by April 1st 2024 * MLCC - Machine Learning Crash Course 2024 (https://malga.unige.it/education/schools/mlcc2024) to be held 25-28 June 2024 Instructors: Lorenzo Rosasco, Silvia Villa, Simone Di Marino, Matteo Santacesaria MLCC (Machine Learning Crash Course) was held for the first time in 2014 and has evolved in different formats Ince then. It provides an introduction to the fundamental methods at the core of modern Machine Learning, covering theoretical foundations as well as essential algorithms. *Apply by April 1st 2024* AHAML - Applied Harmonic Analysis and Machine Learning 2024 (https://malga.unige.it/education/schools/ahaml2024) to be held 2-6 September 2024 Instructors: Alberto Setti, Davide Bianchi The school consists of three courses on applied harmonic analysis and machine learning. *Register here by July 31st 2024* Our schools are open to students, researchers and professionals. The maximum number of participants for each school is 120. Ernesto De Vito --------------------------------- DIMA - Dipartimento di Matematica MaLGa - Machine Learning Genoa center Via Dodecaneso 35 16146 Genova Italy e-mail: ernesto.devito(a)unige.it

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6th SOfA conference - deadlines extended
by Mastrogiacomo Elisa 07 Mar '24

07 Mar '24

Dear Colleagues, The Universities of Insubria and Bicocca are collaborating to organize the next International Conference on Set Optimization for Applications (SOfA 2024), scheduled to take place in Stresa on June 3-7, 2024. The 6th SOfA aims to bring together experts in various fields of set and vector optimization, convex and variational analysis, stochastic analysis, multivariate dynamic programming, multi-criteria decision-making, as well as applications in economics, risk measurement, game theory, and statistics. The conference is, by tradition, very open; the scientific and local committees aspire to extend beyond the realm of set and vector optimization, attracting individuals with a research background in optimization, even those only tangentially related to this topic. So, a very mixed and curious audience is expected. Website: SOfA 2024<https://sites.google.com/view/sofa2024/home?authuser=0> Invited speakers: Ignacio Cascos<https://www.uc3m.es/ss/Satellite/UC3MInstitucional/en/Detalle/Organismo_C/1…> - Universidad Carlos III de Madrid Giulia Di Nunno<https://www.mn.uio.no/math/english/people/aca/giulian/> - University of Oslo Jin Ma<https://dornsife.usc.edu/jin-ma/> - University of Southern California Call for papers: We encourage submissions on any topic within the overall theme of the conference. The abstract submission template is available online via the Conference<https://sites.google.com/view/sofa2024/submissions?authuser=0> <https://sites.google.com/view/sofa2024/submissions?authuser=0> website<https://sites.google.com/view/sofa2024/submissions?authuser=0>. Abstracts should be submitted before March 31, 2024. Decisions regarding acceptance will be made by April 7, 2024. Don't miss the opportunity to join us also for a scenic cruise trip on Lago Maggiore and enjoy the spectacle of its famous islands! ** Considering the high tourist demand in June, we strongly recommend booking as soon as possible. Availability is not guaranteed for last-minute bookings, and rates will increase as the conference start date approaches. ** We look forward to welcoming you in Stresa. Elisa Mastrogiacomo on behalf of the local organizers Paolo Bartesaghi, Fabio Bellini, Asmerilda Hitaj, Matteo Rocca, Emanuela Rosazza Gianin, Gianmario Tessitore, Daniela Visetti Elisa Mastrogiacomo ----------------------------------------- Professore Ordinario di Metodi matematici dell'economia e delle scienze attuariali e finanziarie DIPARTIMENTO D'ECCELLENZA 2023/2027 Università degli Studi dell'Insubria Dipartimento di Economia Via Monte Generoso, 71 – 21100 Varese tel. +39 0332/395528 web: www.uninsubria.it<http://www.uninsubria.it/> mail: elisa.mastrogiacomo(a)uninsubria.it<mailto:mario.rossi@uninsubria.it> Chiaramente Insubria! [LOGO-ATENEO-FONDO TRASPARENTE]<http://www.uninsubria.it/> [Facebook] <https://www.facebook.com/uninsubria> [Twitter] <https://twitter.com/Uni_Insubria> [Instagram] <https://instagram.com/uninsubria> [YouTube] <https://www.youtube.com/user/LabVAMultimedia>

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42nd Finnish Summer School on Probability and Statistics in Lammi, Finland 27-31.5.2024
by Gasbarra, Dario 07 Mar '24

07 Mar '24

Dear friends of Stochastics and Statistics, the registration for the 42nd Finnish Summer School on Probability and Statistics in Lammi, Finland 27-31.5.2024 is open ! Please check the website https://fdnss.fi/42nd-finnish-summer-school-on-probability-and-statistics/ Minicourses: * Jüri Lember<https://www.etis.ee/CV/J%C3%BCri_Lember> (University of Tartu) Pairwise Markov Models (abstract<https://fdnss.fi/pairwise-markov-models/>) * Kostiantyn Ralchenko<https://probability.knu.ua/index.php?page=userinfo&person=ralchenko&lan=en> (Taras Shevchenko National University of Kyiv) Fractional Vasicek model: Asymptotic properties and statistical inference * Roland Speicher<https://www.uni-saarland.de/lehrstuhl/speicher/roland-speicher.html> (Universität des Saarlandes) Free Probability and Random Matrices (abstract<https://fdnss.fi/free-probability-and-random-matrices/>) * Josep Vives<https://webgrec.ub.edu/webpages/000006/ang/josep.vives.ub.edu.html> (Universitat de Barcelona) Malliavin-Skorohod calculus for additive processes with applications to Finance and Insurance See you in Lammi ! Dario Gasbarra, Department of Mathematics and Statistics University of Helsinki

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Seminario PRISMA oggi
by Francesco Caravenna 07 Mar '24

07 Mar '24

Seminari on-line del gruppo UMI - PRISMA (http://www.umi-prisma.polito.it/ <http://www.umi-prisma.polito.it/>) Ricordiamo che oggi, giovedì 7 marzo 2024, Luca Avena (Università di Firenze) e Matteo Quattropani (Sapienza Università di Roma) parleranno di Incontri tra passeggiate aleatorie e dinamiche di opinione su grafi random con il seguente orario: 16:00 Primo seminario 16:30 Pausa e discussione 16:45 Secondo seminario 17:15 Conclusione e discussione Trovate di seguito il riassunto. I seminari verranno trasmessi via Zoom al seguente link: https://uniroma1.zoom.us/j/82939128330 <https://uniroma1.zoom.us/j/82939128330> Meeting ID: 829 3912 8330 Vi aspettiamo numerosi, Valentina Cammarota e Francesco Caravenna %%%%%%%%%%%%%%%%%%%%%%%%%%%% RELATORI: Luca Avena (Università di Firenze) e Matteo Quattropani (Sapienza Università di Roma) TITOLO: Incontri tra passeggiate aleatorie e dinamiche di opinione su grafi random RIASSUNTO: Nella prima parte del seminario discuteremo risultati, classici o più recenti, della teoria che lega il comportamento di passeggiate aleatorie su grafi finiti a quello dei processi di coalescenza, e le relative implicazioni nell’analisi del tempo di consenso per dinamiche di opinione markoviane. Nella seconda parte del seminario presenteremo uno specifico risultato, ottenuto recentemente in collaborazione con Federico Capannoli e Rajat Shubra Hazra (Leiden University), in cui il grafo sottostante è aleatorio, orientato, e con un arbitraria sequenza di gradi. In particolare, in funzione della sequenza dei gradi scelta, identificheremo esplicitamente la legge dei tempi di incontro di due passeggiate aleatorie e, di conseguenza, il tempo di consenso per la dinamica di opinione associata. Discuteremo quindi delle implicazioni di questo risultato nel contesto applicativo del design delle reti, individuando le caratteristiche del grafo che tendono ad aumentare o a diminuire il tempo necessario a raggiungere il consenso. %%%%%%%%%%%%%%%%%%%%%%%%%%%% I seminari PRISMA hanno un formato di "colloquium", per creare un'occasione di scambio e discussione con tutta la comunità dei probabilisti e statistici italiani. Ogni giornata comprende due relatori che tengono due seminari di 30 minuti strettamente connessi, per presentare alla comunità una prospettiva sul proprio ambito di ricerca. Da quest'anno le registrazioni dei seminari vengono pubblicate sul canale YouTube dell'UMI: https://www.youtube.com/@umi1922/videos %%%%%%%%%%%%%%%%%%%%%%%%%%%%

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Seminario Andrea Di Primio - Politecnico di Milano - 6 Marzo 2024
by Luca Scarpa 05 Mar '24

05 Mar '24

Si segnala il seguente seminario a tutti gli interessati. Mercoledì 6 Marzo 2024, ore 11:30. Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano. Speaker: Andrea Di Primio. Title: Stochastic diffuse interface models with conservative noise. Abstract: Cahn-Hilliard type models are widely used to model phase separation phenomena occurring in multicomponent systems subject to thermodynamical stress. In 1970, a stochastic variant taking into account thermal effects driving spinodal decomposition was proposed by H. Cook. This model generalizes its deterministic counterpart and better fits available experimental data, especially in the early stages of phase separation. In this talk, I will examine the stochastic analysis of an almost-surely mass-conserving stochastic Cahn-Hilliard model, which stems from the original Cahn-Hilliard-Cook model when endowed with a conservative noise in divergence form. The mass conservation property is indeed expected in the deterministic version of the system. Our first-step investigation concerns the existence of unique probabilistically strong solutions to the equation, appealing to stochastic variational techniques. Some insights on the corresponding Allen-Cahn relaxation, for which we show conditional results, will also be given. In all models, a thermodynamical singular potential is considered. Further open questions will also be presented. Link Zoom: https://polimi-it.zoom.us/j/96554067742?pwd=Wm9JZTZZcWV0Tkpld1dHUHlXS0R0Zz09 Link Seminario Polimi: https://www.mate.polimi.it/eventi/?id=2393 ----- Luca Scarpa, PhD Associate Professor Department of Mathematics Politecnico di Milano Via E. Bonardi 9 20133 Milano, Italy e.mail: luca.scarpa(a)polimi.it url: https://sites.google.com/view/lucascarpa

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