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Doctoral or Post-Doctoral Position in Financial Econometrics/Statistics at University of Vienna
by Luca Gonzato 23 Feb '22

23 Feb '22

Dear all, The Department of Statistics and Operations Research at the University of Vienna invites applications for a doctoral (4 years) or post-doctoral (6 years) position in the field of Financial Econometrics/Statistics. The details of the call (in English) are available at https://inomics.com/job/doctoral-or-post-doctoral-position-in-financial-eco… The deadline is March 14, 2022. If you need further information regarding the position, please, contact Professor Nikolaus Hautsch (nikolaus.hautsch(a)univie.ac.at). Best regards, Luca Gonzato

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(PMS)^2 online talk: Boualem Djehiche
by margherita Zanella 23 Feb '22

23 Feb '22

Dear colleagues, we are happy to announce the following online talk: Speaker: Boualem Djehiche (KTH, Stockholm) Title: Zero-sum mean-field Dynkin games. Abstract: I will review recent results on a class of zero-sum game problems of mean-field type which extend the classical zero-sum Dynkin game problems. The results I will highlight include sufficient conditions under which such a game admits a value and a saddle point and a characterization of the value of the game in terms of a specific class of doubly reflected backward stochastic differential equations (BSDEs) of mean-field type. Moreover, a corresponding system of weakly interacting values of zero-sum Dynkin games is introduced and is shown to converge to the value of the zero-sum mean-field Dynkin game. In particular, a propagation of chaos result is derived. This is a joint work with Roxana Dumistrescu. Date and time: Monday February 28, 17:30-18:30 (Rome time zone). Zoom link: https://us02web.zoom.us/j/5772228296 Join our Cloud HD Video Meeting<https://us02web.zoom.us/j/5772228296> Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is a publicly traded company headquartered in San Jose, CA. us02web.zoom.us This talk is a talk of the (PMS)^2: Pavia-Milano Seminar series on Probability and Mathematical Statistics organized jointly by the universities Milano-Bicocca, Pavia, Milano-Politecnico and Milano-Statale. For more information see the dedicated webpage: https://paviamilanoseminars.wordpress.com/ Participation is free and welcome! Best regards, The organizers (Mario Maurelli, Carlo Orrieri, Maurizia Rossi, Margherita Zanella)

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Reminder - seminario di Sara Svaluto Ferro a Padova!
by Giorgia Callegaro 21 Feb '22

21 Feb '22

Carissimi, vi scrivo per ricordarvi che venerdì 25 febbraio 2022 Sara Svaluto Ferro terrà, alle 14.30, in presenza (aula 2BC30 del Dipartimento di Matematica dell'Università di Padova) ed online (Zoom), il seminario "*Signature processes in mathematical finance, an introduction*". Ulteriori info ed il link Zoom sono disponibili qui: https://www.math.unipd.it/~bianchi/seminari/ A presto, spero, grazie, Giorgia -- Giorgia Callegaro Associate Professor Department of Mathematics - University of Padova Via Trieste 63 , I-35121 Padova - ITALY Tel: +39-0498271481 Fax: +39-0498271499 E-Mail: gcallega(a)math.unipd.it <https://webmail.math.unipd.it/horde3/imp/message.php?mailbox=Sent&index=598#> Personal web-page: https://sites.google.com/site/giogiocallegaro/Home

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OSD2022-14th International Conference on Ordered Statistical Data
by malongob＠unina.it 20 Feb '22

20 Feb '22

Care colleghe e cari colleghi, ho il piacere di informarvi che il convegno internazionale OSD2022, 14th International Conference on Ordered Statistical Data, si terrà (finalmente in presenza) a Vietri sul Mare (SA) dal 24 al 27 maggio 2022. I dettagli del convegno sono reperibili all'indirizzo www.osd2022.unina.it Spero di incontrarvi numerosi per tale evento che sarà anche l'occasione per celebrare (in ritardo) il 70° compleanno del collega e caro amico Fabio Spizzichino, che tanto ha dato alla nostra comunità. Vi saluto caramente, Mariella Longobardi Dear Colleagues, I am glad to inform you that the International Conference OSD2022, 14th International Conference on Ordered Statistical Data will be held from 24th to 27th May 2022 in Vietri sul Mare (SA). Details can be found at website www.osd2022.unina.it I hope to meet all of you at the conference that will also be the occasion to celebrate (unfortunately on late, due to Covid19) Fabio Spizzichino's 70th birthday. Greetings and best regards, Mariella Longobardi Maria Longobardi, Ph.D. in Applied Mathematics Associate Professor of Probability and Mathematical Statistics E-mail: maria.longobardi(a)unina.it Dipartimento di Biologia Università degli Studi di Napoli FEDERICO II Via Cintia - 80126 Napoli - Italy Studio 114 - V livello del Dipartimento di Matematica e Applicazioni Tel. +39 081 675620

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PhD position in Applied Mathematics and Statistics, Göteborg, Sweden
by Umberto Picchini 19 Feb '22

19 Feb '22

We are looking for a doctoral student who would like to work in *any of the research areas* of the division of Applied Mathematics and Statistics <https://www.chalmers.se/en/departments/math/organisation/Pages/applied-math…> at Chalmers University of Technology an University of Göteborg, Göteborg, Sweden. A list of possible projects is given below. PhD salaries in Sweden are attractive. The following list includes a collection of possible projects that you can work in: Marina Axelson-Fisk: AI Support for Medical Decision Making <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Tobias Gebäck, Alexei Heintz and Irina Pettersson: Multiscale models for wetting dynamics in porous materials <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Philip Gerle: Universal differential equations for infectious disease modelling <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Erik Kristiansson: Analysis of DNA sequences using artificial intelligence <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Anders Logg: High-Performance High-Quality Automated Mesh Generation for Large-Scale City Modeling and Simulation <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Serik Sagitov: Critical Galton-Watson processes with overlapping generations <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20…> Aila Särkkä: Spatio-temporal modelling combined with machine learning <https://www.chalmers.se/sv/institutioner/math/organisation/Documents/PhD%20… Spatio-temporal modelling combined with machine learning.pdf> Feel free to contact any of the people above or other people in the division that you might be interested in working with already before submitting your application. For full info, contact details and links to apply, please go to https://www.chalmers.se/en/about-chalmers/Working-at-Chalmers/Vacancies/Pag… <https://www.chalmers.se/en/about-chalmers/Working-at-Chalmers/Vacancies/Pag…> *Application deadline: February 25, 2022* * * -- _________________________________________________________ Umberto Picchini, Associate Professor, PhD, Docent https://umbertopicchini.github.io/ , twitter: @uPicchini

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seminar: "Combined analysis of spatially misaligned data using Gaussian fields and the stochastic partial differential equation approach.", Paula Moraga 22 February
by Umberto Picchini 19 Feb '22

19 Feb '22

You are welcome to the next Statistics seminar at Dept of Mathematical Sciences at Chalmers and Göteborg University. We are very glad to have, on Tuesday February 22, Paula Moraga <https://www.paulamoraga.com/> (KAUST) who will talk of: ///"Combined analysis of spatially misaligned data using Gaussian fields and the stochastic partial differential equation approach."/ //** paula moraga *About the speaker: *Paula Moraga <https://www.paulamoraga.com/> is an Assistant Professor of Statistics at King Abdullah University of Science and Technology (KAUST) and the Principal Investigator of the GeoHealth research group. Her research focuses on the development of innovative statistical methods and computational tools for geospatial data analysis and health surveillance, and the impact of her work has directly informed strategic policy in reducing disease burden in several countries. She has developed modeling architectures to understand the geographic and temporal patterns and identify targets for intervention of diseases such as malaria in Africa and cancer in Australia, and has worked on the development of a number of R packages for Bayesian risk modeling, detection of disease clusters, and risk assessment of travel-related spread of disease. // //* * *Abstract: *Spatially misaligned data are becoming increasingly common due to advances in both data collection and management in a wide range of scientific disciplines including the epidemiological, ecological and environmental fields. Here, we present a Bayesian geostatistical model for fusion of data obtained at point and areal resolutions. The model assumes that underlying all observations there is a spatially continuous variable that can be modeled using a Gaussian random field process. The model is fitted using the integrated nested Laplace approximation (INLA) and the stochastic partial differential equation (SPDE) approaches. In the SPDE approach, a continuously indexed Gaussian random field is represented as a discretely indexed Gaussian Markov random field (GMRF) by means of a finite basis function defined on a triangulation of the region of study. In order to allow the combination of point and areal data, a new projection matrix for mapping the GMRF from the observation locations to the triangulation nodes is proposed which takes into account the types of data to be combined. The performance of the model is examined via simulation when it is fitted to point, areal, and point and areal data combined to predict several simulated surfaces that can appear in real settings. The model is also applied to predict the concentration of fine particulate matter (PM2.5) in Los Angeles and Ventura counties, USA, during 2011. The results show that the combination of point and areal data provides better predictions than if the method is applied to just one type of data, and this is consistent over both simulated and real data. We conclude the approach presented may be a helpful advance in the area of spatial statistics by providing a useful tool that is applicable in a wide range of situations where information at different spatial resolutions needs to be combined. *Feel free to spread this announcement in your network.* * * *Where*: https://chalmers.zoom.us/j/64709763394 Password: 920248 ** **** *When*: Tuesday 22 February at 14.15-15.15*(Swedish time)*. ** -- _________________________________________________________ Umberto Picchini, Associate Professor, PhD, Docent https://umbertopicchini.github.io/ , twitter: @uPicchini

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Seminar José Figueroa Lopez in Verona, 23/2/22 at 12, Efficient Volatility Estimation for Lévy Processes with Jumps of Unbounded Variation
by Cecilia Mancini 16 Feb '22

16 Feb '22

José Figueroa Lopez Professor at the Washington University in St. Louis will give, both on site and on line, the SEMINAR Efficient Volatility Estimation for Lévy Processes with Jumps of Unbounded Variation Abstract. Statistical inference for stochastic processes based on high-frequency observations has been an active research area for more than a decade. One of the most well-known and widely studied problems is that of estimation of the quadratic variation of the continuous component of an Itô semimartingale with jumps. Several rate- and variance-efficient estimators have been proposed in the literature when the jump component is of bounded variation. However, to date, very few methods can deal with jumps of unbounded variation. By developing new high-order expansions of the truncated moments of a Lévy process, we construct a new rate- and variance-efficient estimator for a class of Lévy processes of unbounded variation, whose small jumps behave like those of a stable Lévy process with Blumenthal-Getoor index less than 8/5. The proposed method is based on a two-step debiasing procedure for the truncated realized quadratic variation of the process. Our Monte Carlo experiments indicate that the method outperforms other efficient alternatives in the literature in the setting covered by our theoretical framework. All interested people are warmly invited to participate Professor Figueroa-Lopez is visiting our department from February the 10th to March the 22nd, and from June the 15th to August the 15th For attendance via Zoom, please register at the following page, we will send you the meeting link: https://docs.google.com/forms/d/e/1FAIpQLSdJ6PccwEy8tSEngi0JMUKYEJ4yOHuuwur… Live attendance: the Department of Economics, via Cantarane 24, Vaona room. Due to the limited number of available seats, interested people should write an e-mail to: cecilia.mancini(a)univr.it<mailto:cecilia.mancini@univr.it>

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Scientific ASA 2022 conference on Data-Driven Decision Making
by Marta Nai Ruscone 15 Feb '22

15 Feb '22

Apologies for cross-posting.... Dear Colleagues, we would like to draw your attention to the upcoming Scientific ASA 2022 Conference on "Data-Driven Decision Making" that will be held at the University of Genoa (Italy), 12-14 September 2022. Attached is the Call for Paper. For further information and updates please visit the conference website asa2022.unige.it We are looking forward to Welcome you in Genova! Best Regards, Enrico di Bella and Corrado Lagazio (co-chairs of the Local Organising Commitee) *** --- *** <> Marta Nai Ruscone Department of Economics - DIEC University of Genova. Via Vivaldi, 5. 16100 Genova (GE). Italy

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International conference “Statistical Methods and Models for Complex - SAVE THE DATE!
by Alessandra Fabbri Colabich 11 Feb '22

11 Feb '22

*Si invia il seguente messaggio da parte della Direzione del Dipartimento di Scienze Statistiche dell'Università degli Studi di Padova:* *SAVE THE DATE!International conference “Statistical Methods and Models for Complex* Data”, *21-23 September 2022*, Padova, Italy The Department of Statistical Sciences of the University of Padova is organizing the international conference: “Statistical Methods and Models for Complex Data”. The conference will be held in Padova, Italy on 21-23 September 2022. The event is organized on the occasion of the 800th anniversary of the University of Padua and the last year of the excellence project of our department. The scientific program will include plenary sessions, with 45 minutes invited presentations from internationally recognized experts, followed by 25 minutes for interventions of two main discussants and informal moments of discussion and interaction between the participants. Partecipation of senior and young scientists involved in the developments of statistical methods and tools for complex data is strongly encouraged. The scientific program of the conference will be available as soon as possible on the website http://800years.stat.unipd.it, currently under development. For further information, please contact: 800years(a)stat.unipd.it

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Seminar in Statistics - GRAHAM CORMODE
by Pierpaolo De Blasi 11 Feb '22

11 Feb '22

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 18 Febbraio 2022, alle ore 12.00, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ Speaker: *Graham Cormode* (University of Warwick) Title: *New Lower and Upper Bounds for Quantile Summary Algorithms* Abstract: Finding the median, or more generally quantiles, is a core problem in data analysis. The question has been heavily studied in streaming and related models of computation, for over four decades. In this talk I will present some recent advances: - Lower bounds for approximating quantiles in the deterministic comparison model, for additive error, which show that the best known algorithm is in fact optimal - Upper bounds for relative error epsilon-approximations of quantiles, which improves over previous results and exceed the best known lower bounds by only an O(log(1/e)3/2) factor. This covers joint work with Pavel Vesely, Justin Thaler, Edo Liberty and Zohar Karnin. ------------------------------------------------ Sarà possibile seguire il seminario anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/88206863118?pwd=cmlHYzBXbW9NZ2JVYmtDbDNqNnFydz09> Meeting ID: 882 0686 3118 Passcode: 757710 Il seminario è organizzato dalla "de Castro" Statistics Initiative www.carloalberto.org/stats Cordiali saluti, Pierpaolo De Blasi -- Pierpaolo De Blasi University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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Third Italian Meeting on Probability and Mathematical Statistics
by Tiziano Vargiolu 10 Feb '22

10 Feb '22

Dear Colleagues, we are pleased to recall some essential information about the Third Italian Meeting on Probability and Mathematical Statistics (Bologna, Italy, June 13th-16th, 2022) Important deadlines: - March 30, 2022: submission of Organized Session proposals (https://site.unibo.it/probstat/en/how-to-contribute) - March 30, 2022: submission of abstracts of all contributions (https://site.unibo.it/probstat/en/how-to-contribute) - April 7, 2022: notification of acceptance will be sent to the authors - April 21, 2022: early registration (with reduced fee) - May 19, 2022 intermediate registration Main links: Conference web site: https://site.unibo.it/probstat/en Guidelines for authors: https://site.unibo.it/probstat/en/how-to-contribute Plenary Speakers: https://site.unibo.it/probstat/en/about-1/plenary Registration: https://site.unibo.it/probstat/en/registration Accommodation: https://site.unibo.it/probstat/en/for-participants/accommodation Travel info: https://site.unibo.it/probstat/en/for-participants/travel Contacts: https://site.unibo.it/probstat/en/contacts We look forward meeting you soon. The Scientific Committee Claudia Ceci, Paolo Dai Pra, Antonio Di Crescenzo, Franco Fagnola, Marco Ferrante, Franco Flandoli, Antonio Lijoi, Domenico Marinucci, Andrea Pascucci, Franco Pellerey, Laura Sacerdote The Local Organizing Committee Fabio Antonelli, Elena Bandini, Massimo Campanino, Andrea Cosso, Marco Di Francesco, Alberto Lanconelli, Stefano Pagliarani, Andrea Pascucci, Pietro Rigo, Tiziano Vargiolu

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(PMS)^2 online talk: Michele Coghi, Monday February 14 at 17.30
by Carlo Orrieri 09 Feb '22

09 Feb '22

Dear colleagues, We are happy to announce the following online talk: Speaker: Michele Coghi (Università d Trento) Title: Rough McKean-Vlasov dynamics for robust ensemble Kalman filtering. Abstract: Motivated by the challenge of incorporating data into misspecified and multiscale dynamical models, we study a McKean-Vlasov equation that contains the data stream as a common driving rough path. This setting allows us to prove well-posedness as well as continuity with respect to the driver in an appropriate rough-path topology. The latter property is key in our subsequent development of a robust data assimilation methodology: We establish propagation of chaos for the associated interacting particle system, which in turn is suggestive of a numerical scheme that can be viewed as an extension of the ensemble Kalman filter to a rough-path framework. Finally, we discuss a data-driven method based on subsampling to construct suitable rough path lifts and demonstrate the robustness of our scheme in a number of numerical experiments related to parameter estimation problems in multiscale contexts. Based on arXiv:2107.06621 <https://arxiv.org/abs/2107.06621>. Date and time: Monday February 14, 17:30-18:30 (Rome time zone) Zoom link: https://us02web.zoom.us/j/88138955113?pwd=R1Vpa2xWVDlFc2pjUXIxSWpWU21LQT09 <https://us02web.zoom.us/j/88138955113?pwd=R1Vpa2xWVDlFc2pjUXIxSWpWU21LQT09> ID riunione: 881 3895 5113 Passcode: 672537 This talk is the second of the (PMS)^2: Pavia-Milano Seminar series on Probability and Mathematical Statistics organized jointly by the universities Milano-Bicocca, Pavia, Milano-Politecnico and Milano-Statale. Participation is free and welcome! (though limited to 100 participants for technical reasons) Best regards The organizers (Mario Maurelli, Carlo Orrieri, Maurizia Rossi, Margherita Zanella)

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Online workshop announcement
by Alessandra Micheletti 08 Feb '22

08 Feb '22

*Big Data challenges for Mathematics: state of the art and future perspectives* *Online webinar – February 25, 2022* The workshop will be held on the platform Zoom and will be streamed on YouTube. Participants who would like to follow the workshop in real time and participate to the discussion with the speakers are requested to register. See the web site of the workshop for registration, programme and additional information: *http://itn-bigmath.unimi.it/* <http://itn-bigmath.unimi.it/> *Aims of the workshop:* Nowadays the data deluge is the hallmark of a new kind of ‘Law of Large Numbers’ that builds intelligence from large, heterogeneous, noisy and, in general, complex data sets collected from mobile devices, the Internet of Things, software logs, automated medical devices, social media, and so many other data sources. The classical mathematical and statistical paradigms are often not applicable to current real-world problems, so there is a growing demand of new mathematical and statistical techniques to face such problems, able to shed some light on the often black-box techniques which are usually applied in such context and which characterise Deep Learning and, more generally, Artificial Intelligence. On the other side, since computers can not do everything by themselves, there is a growing need for new professional and scientific figures, the data scientists, that master a whole range of skills, ranging from data processing to sophisticated math tools and computational skills that are needed to extract the knowledge. The state of the art and future research perspectives in this framework will be highlighted and discussed in this webinar by the PhD students enrolled in the EU funded MSCA Project BIGMATH <http://itn-bigmath.unimi.it/> (grant n. 812912), starting from a set of challenging industrial case studies. Additionally some well known keynote speakers will introduce their point of view on possible future perspectives in different specific and quite hot subject areas related with the analysis of complex and big data. -- ------------------------------------ Alessandra Micheletti Associate Professor - Probability and Mathematical Statistics Dept. of Environmental Science and Policy - ESP Università degli Studi di Milano via Saldini 50, 20133 Milano, Italy phone: +39-02503-16130 fax: +39-02503-16090 https://alessandramichelettiwebpage.wordpress.com/

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Seminar by Sara Svaluto-Ferro in Padova.
by Giorgia Callegaro 07 Feb '22

07 Feb '22

Dear all, it's a pleasure to announce the next Probability and Finance seminar at the Department of Mathematics of the University of Padova, which will be held both *in presence* and online with the following details: - Date: 25 February 2022 - Speaker: Dr. Sara Svaluto-Ferro (Univ. of Verona) - Venue: Dept of Mathematics, Univ. of Padova, room 2BC30 - Zoom link: available at https://www.math.unipd.it/~bianchi/seminari/ - Title: "*Signature processes in mathematical finance, an introduction*" - Abstract: we will provide an introduction to the signature of a continuous semimartingale. This in particular includes its definition, its main properties, and an overview of (some) of its uses in financial mathematics. Thanks and hope to see you soon, Giorgia -- Giorgia Callegaro Associate Professor Department of Mathematics - University of Padova Via Trieste 63 , I-35121 Padova - ITALY Tel: +39-0498271481 Fax: +39-0498271499 E-Mail: gcallega(a)math.unipd.it <https://webmail.math.unipd.it/horde3/imp/message.php?mailbox=Sent&index=598#> Personal web-page: https://sites.google.com/site/giogiocallegaro/Home

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ERC funded postdoctoral position at University of Torino and Collegio Carlo Alberto
by Stefano Favaro 03 Feb '22

03 Feb '22

The Department ESOMAS at University of Torino and Collegio Carlo Alberto invites applications for a postdoctoral position within the European Research Council (ERC) project “Nonparametric Bayes and empirical Bayes for species sampling problems: classical questions, new directions are related issues”. The general area of interest is Statistics. Relevant details of the postdoctoral position ara available at the bottom of this letter. Deadline for applications: 22 FEBRUARY 2022 Information for applicants are available (only in Italian) at the Call for Applications https://pica.cineca.it/unito/assegni-di-ricerca-unito-2022-i/file/Bando%20d… <https://pica.cineca.it/unito/assegni-di-ricerca-unito-2022-i/file/Bando%20d…>. Within the Call for Applications, the postdoctoral position appears at page 24 under the title “Statistica Bayesiana non-parametrica e non-parametrica empirica per problemi di campionamento di specie”. Reference code: ESOMAS.2022.01. Applications are made only online - https://pica.cineca.it/unito/ <https://pica.cineca.it/unito/> - by selecting “Your Applications” in the box “Bando Assegni di ricerca - Tornata I 2022” (code TornataI2022). The application procedure is available in Italian/English, and it requires a CV, two reference letters and a research statement. Prospective candidates may contact directly Stefano Favaro - stefano.favaro(a)unito.it <mailto:stefano.favaro@unito.it> - for any information on the postdoctoral position and the application procedure. Best wishes Stefano Favaro **** Prospective candidates are expected to have experience on nonparametric statistics, within the classical (frequentist) and/or Bayesian paradigm, and they should preferably be holding a Ph.D. or being close to receiving one. The research shall be carried out in English. The duration of the contract is 24 months. Expected starting date in May 2022, but a different date may be arranged. The salary amounts to 46,000 Euros per year, including taxes and social charges, and considerable financial support to attend conferences and workshops will be granted. There are no teaching duties associated to the position. Abstract. Object of research are species sampling problems, whose importance has grown considerably in recent years driven by numerous applications in the broad area of biosciences, and also in machine learning, theoretical computer science and information theory. Within the broad field of species sampling problems, the research will be focussed on two research themes: i) the study of nonparametric Bayes and nonparametric empirical Bayes methodologies for classical species sampling problems, generalized species sampling problems emerging in biological and physical sciences, and question thereof in the context of optimal design of species inventories; ii) the use of recent mathematical tools from the theory of differential privacy to study the fundamental tradeoff between privacy protection of information, which requires to release partial data, and Bayesian learning in species sampling problems, which requires accurate data to make inference. **** -- Stefano Favaro University of Torino and Collegio Carlo Alberto http://sites.carloalberto.org/favaro/ <http://sites.carloalberto.org/favaro/>

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Prossimi seminari PRISMA
by Domenico Marinucci 01 Feb '22

01 Feb '22

Cari colleghi, scusandomi per eventuali ripetizioni, vi annuncio i prossimi due seminari della serie UMI-Prisma, che si svolgeranno online su piattaforma teams lunedì prossimo 7 febbraio dalle 16 alle 18: ------------------------------------------------------------------------------------------------------------------- Speaker: Ernesto De Vito, Dipartimento di Matematica e MaLGa Center, Università di Genova Title: Empirical risk minimization: old and new results Abstract: The first part of the talk is devoted to a brief introduction to supervised learning focusing on the regularised empirical risk minimization (ERM) on Reproducing Kernel Hilbert spaces. Though ERM achieves optimal convergence rates [1], it requires huge computational resources on high dimensional datasets. The second half of the talk is devoted to discuss some recent ideas where the hypothesis space is a low dimensional random space. This approach naturally leads to computational savings, but the question is whether the corresponding learning accuracy is degraded. If the random subspace is spanned by a random subset of the data, the statistical-computational tradeoff has been first explored for the least squares loss [2,3], for the least squares loss, then for self-concordant loss functions [4] , as the logistic loss, and, quite recently, for non-smooth convex Lipschitz loss functions [5], as the hinge loss. References: [1] Caponnetto, A. and De Vito, E. (2007). Optimal rates for the regularized least-squares algorithm. Foundations of Computational Mathematics, 7(3):331–368. [2] Rudi, A., Calandriello, D., Carratino, L., and Rosasco, L. (2018). On fast leverage score sampling and optimal learning. In Advances in Neural Information Processing Systems, pages 5672–5682. [3] Rudi, A., Camoriano, R., and Rosasco, L. (2015). Less is more: Nystrom computational regularization. In Advances in Neural Information Processing Systems, pages 1657–1665. [4] Marteau-Ferey, U., Ostrovskii, D., Bach, F., and Rudi, A. (2019). Beyond least-squares: Fast rates for regularized empirical risk minimization through self-concordance. arXiv preprint arXiv:1902.03046. [5] Andrea Della Vecchia, Jaouad Mourtada, Ernesto De Vito, Lorenzo Rosasco, Regularized ERM on random subspaces arXiv:2006.10016 Speaker: Alessandro Rudi, ENS Paris Title: "Representing non-negative function with applications to non-convex optimization and beyond" Abstract: In this talk we present a rather flexible and expressive model for non-negative functions. We will show direct applications in probability representation and non-convex optimization. In particular, the model allows to derive an algorithm for non-convex optimization that is adaptive to the degree of differentiability of the objective function and achieves optimal rates of convergence. Finally, we show how to apply the same technique to other interesting problems in applied mathematics that can be easily expressed in terms of inequalities. References: Ulysse Marteau-Ferey , Francis Bach, Alessandro Rudi. Non-parametric Models for Non-negative Functions. https://arxiv.org/abs/2007.03926 Alessandro Rudi, Ulysse Marteau-Ferey, Francis Bach. Finding Global Minima via Kernel Approximations. https://arxiv.org/abs/2012.11978 ------------------------------------------------------------------------------------------------------------------------------ Il link teams per partecipare è il seguente: https://teams.microsoft.com/l/meetup-join/19%3a667d2414be564c5d8fba30acffeb… Grazie e saluti, Domenico Marinucci -- @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Domenico Marinucci Dipartimento di Matematica Università di Roma Tor Vergata https://www.mat.uniroma2.it/~marinucc/ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

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Seminario Probabilità Tor Vergata
by Domenico Marinucci 01 Feb '22

01 Feb '22

Cari colleghi vi annuncio il seguente seminario di Probabilità in presenza. Speaker: Michele Stecconi, University of Nantes Title: Gaussian fields in random real algebraic geometry Abstract: I will describe the behaviour of the singularities of random real algebraic varieties. This will serve as a reference example to introduce some general methods to study topological and differential geometric properties of smooth random fields. Aula Dal Passo, Edificio Sogene, Giovedì 3 Febbraio Ore 16 Grazie per l'attenzione, Domenico Marinucci -- @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Domenico Marinucci Dipartimento di Matematica Università di Roma Tor Vergata https://www.mat.uniroma2.it/~marinucc/ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

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posizione RTDA in MAT06 Università di Trieste
by Francesco Caravenna 31 Jan '22

31 Jan '22

Ricevo e inoltro. > Da: marco barchiesi <mbarchiesi(a)units.it> > Oggetto: posizione RTDA in MAT06 Università di Trieste > Data: 31 gennaio 2022 17:54:27 CET > A: undisclosed-recipients:; > > Gentili colleghi, > > E' stata bandita una posizione RTDA in Probabilità e Statistica presso l'Università di Trieste, > Dipartimento di Matematica e Geoscienze. Vi chiedo gentilmente di diffondere l'informazione > presso i vostri gruppi di ricerca, qualora qualche giovane fosse interessato. > Qui il link con la descrizione della posizione e il relativo bando (scadenza 14 Febbraio): > https://web.units.it/node/43638/ricerca/pub <https://web.units.it/node/43638/ricerca/pub> > > Il bando è reperibile anche sulla pagina del Miur: > https://bandi.miur.it/jobs.php/public/job/id_job/89044 <https://bandi.miur.it/jobs.php/public/job/id_job/89044> > > Cordiali saluti, > Marco Barchiesi

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Bando RTD-b in MAT/06 - Università degli Studi di Perugia, Dip. di Matematica e Informatica - scadenza 22 marzo 2022
by Alessandra Cretarola 31 Jan '22

31 Jan '22

Salve a tutti, vi segnalo l'uscita del seguente bando per una posizione di RTD-b nel SSD MAT/06 presso il Dipartimento di Matematica e Informatica dell'Università degli Studi di Perugia. Tutti i dettagli del bando si trovano al seguente link: https://www.unipg.it/ateneo/concorsi/procedure-di-valutazione-comparativa-r… La scadenza per la presentazione delle domande è il 22 marzo 2022. Cordiali saluti a tutti, Alessandra Cretarola [cid:D672B847-338D-490C-9127-DD1AAD2C18A4] Alessandra Cretarola Professore Associato Dipartimento di Matematica e Informatica Stanza 307, Piano III Via Vanvitelli, 1 06123 Perugia, tel. 0755855021

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Advanced school on ROBUST STATISTICS: FOUNDATIONS AND RECENT DEVELOPMENTS
by Francesca Greselin 31 Jan '22

31 Jan '22

The III International School on Classification and Data Analysis ROBUST STATISTICS: FOUNDATIONS AND RECENT DEVELOPMENTS <https://rsfd.lakecomoschool.org/> organized under the auspices of CLADAG <http://cladag.it/about/>, ERS-IASC <https://iasc-isi.org/ers-mission/>, and the University of Milano-Bicocca, will be held - in presence - on 2-6 May 2022 in the awesome location of Villa del Grumello <https://www.villadelgrumello.it/it/>, on the shore of Como <https://www.lakecomo.is/it/>Lake <https://www.lakecomo.is/it/> (Como, Italy). Lecturers *Anthony Atkinson* <https://www.researchgate.net/profile/Anthony_Atkinson3> *, London School of Economics, UK**Agustin Mayo-Iscar* <https://www.researchgate.net/profile/Agustin_Mayo> *, University of Valladolid, ES**Marco Riani* <https://www.researchgate.net/profile/Marco_Riani>*, University of Parma, IT* *Francesca Greselin* <https://www.researchgate.net/profile/Francesca-Greselin>*,** University of Milano-Bicocca, IT* The school is designed for postgraduate development for researchers and professional data analysts. Registration is now open <https://rsfd.lakecomoschool.org/registration> and it will close on April 2nd, 2022. To foster active interaction among students and instructors, the school is targeted for a class of at most 30 qualified and selected participants. A few rooms for participants are available in the guest house of Villa del Grumello. Attached you will find the Call for Application. Thank you for your attention, Francesca Greselin

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PhD position opening in probability/statistical mechanics in Vienna (TU Wien)
by Prof. Fabio Toninelli 28 Jan '22

28 Jan '22

Dear colleagues, would you kindly forward the announcement below to (strong and motivated) master students interested in a PhD thesis in probability theory/statistical mechanics in Vienna? Thanks in advance Fabio Toninelli A PhD position in Probability and Statistical Mechanics is open at the Technical University of Vienna. Research topics include: random interface models, stochastic interface growth, Markov dynamics of spin systems and dimer models. The position is funded by the Austrian Science Fund (FWF) via the recently funded project "Random Surfaces: growth, fluctuations and universality". The research program will be carried out under the supervision of the principal investigator, Prof. Fabio Toninelli. The PhD program offers the opportunity to interact with the international research partners of the FWF project and, more broadly, with the Vienna probability and mathematical physics communities. DEADLINE: March 4, 2022 Requirements: Master degree (obtained or to be obtained soon) Salary: 2294 euros/month brutto, 14x per year (around 23718 euros/year netto). Health and pension benefits are included. Starting period: Autumn 2022 Duration: three years Teaching obligations: none How to apply: send your application (motivation letter, CV, Course transcripts, copy of master degree (if already available), Reference letter(s) or contact information for references) to fabio.toninelli(a)tuwien.ac.at For information on the PI, please visit the following webpage: https://toninellifabio.wixsite.com/homepage <https://toninellifabio.wixsite.com/homepage> For information on the FWF project "Random Surfaces: growth, fluctuations and universality", visit the following webpage: https://toninellifabio.wixsite.com/homepage/projects <https://toninellifabio.wixsite.com/homepage/projects> -- Prof. Dr. Fabio Toninelli Technical University of Vienna Institut für Stochastik und Wirtschaftsmathematik Wiedner Hauptstrasse 8-10, 1040 Wien, Austria Office: 6th floor, green area. tel: +43-1-58801-10570 https://toninellifabio.wixsite.com/homepage

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Fwd: Assistant Professor Position at Durham University
by Bisi, Elia 28 Jan '22

28 Jan '22

FYI ————————— Elia Bisi Assistant Professor (non-TT) Technische Universität Wien Research Unit Mathematical Stochastics https://eliabisi.com ---------- Forwarded message ---------- From: CHHITA, SUNIL <sunil.chhita(a)DURHAM.AC.UK> Date: 26 Jan 2022, 18:56 +0100 To: APPLIEDPROB(a)JISCMAIL.AC.UK <APPLIEDPROB(a)JISCMAIL.AC.UK> Subject: Assistant Professor Position at Durham University Dear Friends and Colleagues, Apologies if you receive more than one copy of this message. We are currently advertising a new faculty position (Assistant Professor) in probability, stochastic analysis, or a related area, to join the probability group<http://www.maths.dur.ac.uk/PiNE/prob_at_dur.html> at Durham University<https://www.dur.ac.uk/mathematical.sciences/>, UK. The closing date for applications is 13th February 2022. Please see the links for more details: https://durham.taleo.net/careersection/jobdetail.ftl?job=22000104&lang=en Please pass this on to anyone who you think might be interested. Best wishes Sunil

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Seminario di Stefano Favaro, venerdì 28 gennaio ore 11:30 - 12:30, cambio piattaforma
by Antonio Pievatolo 28 Jan '22

28 Jan '22

Il seminario si terrà su Google Meet a questo link: https://meet.google.com/kdz-entz-oxo Purtroppo è richiesto un account Google per partecipare. Ci scusiamo dell'inconveniente. Antonio Pievatolo %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Annuncio di seminario online Stefano Favaro, Università di Torino e CNR-IMATI Learning-augmented count-min sketches via Bayesian nonparametrics ven 28 gen 2022 11:30 - 12:30 (CET) The count-min sketch (CMS) is a time and memory efficient randomized data structure that provides estimates of tokens’ frequencies in a data stream, i.e. point queries, based on randomly hashed data. Learning-augmented CMSs aim at improving the CMS by means of learning models that allow to better exploit data properties. We focus on the learning-augmented CMS of Cai, Mitzenmacher and Adams (NeurIPS, 2018), which relies on Bayesian nonparametric (BNP) modeling of a data stream via Dirichlet process (DP) priors; this is refereed to as the CMS-DP. We present a novel and rigorous approach of the CMS-DP, and we show that it allows to consider more general classes of nonparametric priors than the DP prior. We apply our approach to develop a novel learning-augmented CMS under power-law data streams, which relies on BNP modeling of the stream via Pitman-Yor process (PYP) priors; this is referred to as the CMS-PYP. Applications to synthetic data and real data show that the CMS-PYP outperfo rms both the CMS and CMS-DP in the estimation of low-frequency tokens; this is known to be a critical feature in natural language processing, where it is indeed common to encounter power-law data. Partecipa alla mia riunione da computer, tablet o smartphone. https://global.gotomeeting.com/join/148172789 Puoi accedere anche tramite telefono. (Per i dispositivi supportati, tocca un numero one-touch sotto per accedere immediatamente.) Italia: +39 0 230 57 81 80 - One-touch: tel:+390230578180,,148172789# Codice accesso: 148-172-789 È la prima volta che usi GoToMeeting? Scarica subito l'app e preparati all'inizio della tua prima riunione: https://global.gotomeeting.com/install/148172789 -- Dr Antonio Pievatolo CNR IMATI Phone: +39 02 23699 520 https://www.imati.cnr.it/mypage/people/PievatoloAntonio.htm _______________________________________________ Random mailing list Per informazioni e per disiscriversi: https://fields.dm.unipi.it/listinfo/random Per contattare gli amministratori: random-admin(a)fields.dm.unipi.it Per inviare un messaggio alla mailing list: Random(a)fields.dm.unipi.it Archivio dei messaggi inviati: https://fields.dm.unipi.it/pipermail/random

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Call for international student - 4th year of the Galileian School of Higher Education, Padova, Italy
by Tiziano Vargiolu 28 Jan '22

28 Jan '22

Please see the complete application at http://www.unipd-scuolagalileiana.it/en/content/call-international-students Deadline: March 14, 2022 Please circulate to anyone who could be interested. Highlights here below: --------------------------------------------------------------------- The University of Padova, one of the most ancient universities in the world, has a long tradition in the promotion of the excellence of its students, regardless of their nationality, gender, beliefs, or interests. Accordingly, the University of Padova promotes a program of excellence, the Galilean School of Higher Education, reserved to the best students enrolled at the University of Padova. At the Galilean School of Higher Education, students are recruited in the areas of Humanities (Classe di Scienze Morali), Natural Sciences (Classe di Scienze Naturali) and Social Sciences (Classe di Scienze Sociali). In addition to the regular students, the Galilean School of Higher Education recruits every year up to four highly-motivated international students, who can enroll in a 2-years program towards the Masters Degree (Second Cycle Degree, Laurea Magistrale). The University of Padova offers several Second Cycle Degree (Laurea Magistrale) programs that are entirely taught in English; also, several internal courses of the Galilean School are delivered in English. The School can provide a dedicated course for international students to learn Italian, and give support for learning other languages. This call is reserved to non-Italian citizens, residing outside Italy. Applicants must: 1. be eligible for enrolling in the 1st year of a Second Cycle Degree Course (Laurea Magistrale) of the University of Padova. Please bear in mind that the successful completion of the pre-enrolment to the chosen Second Cycle Degree Course is required to have your application for the Galilean School examined. Applicants who have not completed their Second Cycle Degree Course application alongside their Galilean School application by the indicated deadlines will be automatically excluded from the selection; 2. hold a Bachelor degree (or be expected to obtain one before July 31st or September 30th 2022, depending on the Course chosen at the University of Padova) and not be older than 26 at the time of application; 3. have completed the online application to pre-enroll in at least one Second Cycle Degree Course at the University of Padova on their personal area on apply.unipd.it within March 7th 2022 (please check carefully the deadline for the Course youre interested in, as for some courses the deadline is February 2nd) 4. send the documents required to apply to the selection for the Galilean Schools Call for international students between January 24th 2022 and March 14th 2022 BENEFITS FOR ADMITTED STUDENTS 1. The School will provide free room and board in the University student houses and canteens. 2. The School will reimburse one round trip ticket from/to the country of origin (economy class) up to 1.500,00 Euros for each Academic Year, and cover the cost of books and miscellaneous documented expenses of educational nature (up to 1.000,00 Euros over the 2-years stay) and the expenses for study and research trips authorized by the Class Coordinator (up to 1.500,00 Euros over the 2-years stay). 3. The School assigns a grant up to 5.000,00 Euros for each Academic Year to the admitted students, as a contribution towards personal living expenses. Tiziano -------------------------------------------------------------------------- Tiziano Vargiolu Dipartimento di Matematica Phone: +39 049 8271383 Universita' di Padova Fax: +39 049 8271428 Via Trieste, 63 E-mail: vargiolu(a)math.unipd.it I-35121 Padova (Italy) WWW: http://www.math.unipd.it/~vargiolu -------------------------------------------------------------------------- ---------- Forwarded message ---------- Date: Tue, 25 Jan 2022 08:58:39 +0100 From: lucchini(a)math.unipd.it To: users(a)math.unipd.it Subject: Bando per studenti internazionali ingresso al 4^ anno della SGSS a.a. 2022-23 Cari colleghi Il bando ? visibile al link : I candidati potranno fare domanda on-line da oggi fino al 14 marzo 2022. Vi ringrazio se darete la massima diffusione di questa notizia. Cordialmente Andrea Lucchini

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Assegno di ricerca a Pavia - SECS-S/06
by benedetta.ferrario 28 Jan '22

28 Jan '22

E' stato pubblicato il bando per un assegno di ricerca di tipo A per lo svolgimento di attività di ricerca in METODI MATEMATICI PER L'ANALISI DEI MERCATI FINANZIARI - s.s.d. *SECS-S/06* - presso il Dipartimento di Scienze Economiche ed Aziendali dell'Università di Pavia http://www-assegni.unipv.it/bandi-ateneo-tipo-a/ (cod. assegno A5) Durata: 1 anno (rinnovabile) *Scadenza*: ore 12:00 del giorno 28/02/2022 Grazie per l'attenzione Benedetta

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