Random

random@lists.dm.unipi.it

5 participants
5327 discussions

Postdoc positions at LUISS
by Giovanni Alessandro Zanco 22 Sep '19

22 Sep '19

The Department of Economics and Finance at LUISS has some openings for postdocs https://economiaefinanza.luiss.it/en/research/research-grants-0 in particular I recall the following: Scientific Area Mathematics Mathematical models for the time-space evolution of economic variables Proff. Sara Biagini / Fausto Gozzi / Giovanni Alessandro Zanco A notice of competition by way of comparative evaluation is hereby issued for the awarding of 1 research grant at the Department of Economics and Finance of Luiss Guido Carli in the scientific area of Mathematics. Deadline: October 2, 2019 - 2 p.m. - Central European Summer Time (CET), UTC +2 Giovanni A. Zanco Department of Economics and Finance Luiss Guido Carli Viale Romania 32 00197 Roma gzanco(a)luiss.it

1 0

Reminder: A``LATE-SUMMER'' DAY IN PROBABILITY AND STATISTICAL PHYSICS - 27 September 2019 (Picco e Pires da Silva Castro)
by Gianmarco Bet 22 Sep '19

22 Sep '19

Carissimi, Vi ricordiamo che la settimana prossima si terrà la ottava giornata di seminari: A ``LATE-SUMMER'' DAY IN PROBABILITY AND STATISTICAL PHYSICS University of Florence Friday 27 September 2019 Lecturers: Pierre Picco (Marseille) and Rui Pires da Silva Castro (Eindhoven) Location: Aula Tricerri Viale Morgagni 67, Firenze Informazioni su come arrivare alla pagina: https://www.dimai.unifi.it/vp-285-come-arrivare-how-to-get.html <https://www.dimai.unifi.it/vp-285-come-arrivare-how-to-get.html> Note pratiche: Stiamo prenotando un catering con cibi vegerariani e non, percio` abbiamo bisogno del numero di persone che vogliono mangiare insieme. A coloro che fossero interessati (per una migliore organizzazione) chiediamo di mandare un email a francescaromana.nardi(a)unifi.it <mailto:francescaromana.nardi@unifi.it>; gianmarco.bet(a)unifi.it <mailto:gianmarco.bet@unifi.it>; angela.caporicci(a)unifi.it <mailto:angela.caporicci@unifi.it> con l'intenzione di partecipare al seminario, al coffe break e al pranzo. PROGRAMMA Prof. Pierre Picco (CNRS Marseille) Title: One-dimentional Ising model with long range interactions. A review of results Abstract: In the first talk I will make a quick historical survey of the rigorous results on the one-dimensional Ising model with long-range interactions. A first part will be dedicated to uniqueness of the Gibbs states (Ruelle (1968); Dobrushin (1968); Bricmont, Lebowitz & Pfister (1986)) and the regularity of the free energy when the decay of the potential is fast enough (Dobrushin (1973) Cassandro & Olivieri (1981) and its extensions in particular Capocaccia, Campanino & Olivieri (1983). A second part will be dedicated to the existence of phase transition starting from the Kac-Thompson conjecture (1968) the Dyson results (1969), the Frohlich \& Spencer result (1982), the Imbrie result (1982) the Aizenmann, Chayes, Chayes & Newman result on the Thouless effect (1988), Imbrie & Newman result on the Berezinsky, Kosterlitz & Thouless transition (1988). A third part will be dedicated to present results in the phase transition regime that started with Frohlich & Spencer (1981), Cassandro, Ferrari, Merola & Presutti (2001) and its extensions in particular by Cassandro, Merola, Picco & Rosikov (2014) on the definition of an interface and its fluctuations, and on a Minlos & Sinai theorem on the phase separation problem by Cassandro, Merola & Picco (2017). In the second talk I will review heuristic arguments that were invoked to conjecture the existence of a phase transition at low temperature in particular the Landau argument. I will present toy models where the fluctuation of interfaces and localisation of the droplet in the Minlos & Sinai theory will be explained. I will give an algorithmic definition of one-dimensional contours of Cassandro, Ferrari, Merola & Presutti. Prof. Rui Pires da Silva Castro (Eindhoven University of Technology) Title: Testing for the presence of communities in inhomogeneous random graphs Abstract: Many complex systems can be viewed as a network/graph consisting of vertices (e.g., individuals) connected by edges (e.g., a friendship relation). Often one believes there is some sort of community structure, where some vertices are naturally grouped together (e.g., more densely connected between themselves than to the rest of the network). Much of the community detection literature is concentrated around methods that extract communities from a given network. Our goal in this work is different, and we attempt to understand how difficult is it to determine if a network has real communities. Furthermore, we are primarily interested in the case of small or very small communities, for which many existing results and methods are not applicable. We cast this problem as a binary hypothesis test, where the null model corresponds to a graph without community structure, and the alternative model almost the same, but it also includes a planted community - that is, a small subset of the vertices has higher connection probability than under the null. The main question is to determine the minimal size and “strength” of the planted community that will allow detection. The seminal work of Arias-Castro and Verzelen tackled this problem when the null model is a homogeneous random graph. In our work, however, we consider the case where the null model is inhomogeneous, as this is somewhat closer to realistic scenarios. In particular, we present a scan test and provide conditions under which it is able to detect the presence of a small community. These results are valid for a wide variety of parameter choices. Furthermore, we show that for some parameters choices the scan test is optimal, and no other test can perform better (e.g, detect smaller or weaker planted communities). Finally, we extend this scan test to adapt to many parameters of the model when the null is a rank-1 generalized random graph. In the first part of the talk I will describe the above formulation and ensuing results, with illustrative examples and briefly touching upon the analytical methodology. In addition, I will discuss the related problem of characterizing cliques in rank-1 random graphs, which provides some insights on the role of inhomogeneity. The second part of the talk will go deeper into more technical aspects and ensuing insights. This presentation is based on joint work with Kay Bogerd and Remco van der Hofstad (https://arxiv.org/abs/1805.01688 <https://arxiv.org/abs/1805.01688> and ongoing work). Program: 11.00-11.45 Introductory lecture: Picco 11.45-12.00 Break 12.00-12.45 Seminar: Picco 13.00-14.30 Lunch 14.30-15.15 Introductory lecture: Pires da Silva Castro 15.15-15.30 Break 15.30-16.30 Seminar: Pires da Silva Castro Organizers: G. Bet, F. Caravenna, N. Cancrini, E.N.M. Cirillo, P. Dai Pra, A. De Masi, D. Fanelli, F. Flandoli, C. Giardina`, R. Livi, F. Martinelli, I.G. Minelli, F.R. Nardi, E. Presutti, B. Scoppola, E. Scoppola. Ricordo che ciascun oratore fara` una lezione introduttiva e divulgativa di 45 minuti pensata proprio per i non esperti, seguita da altri 45 minuti di tipo seminario (vedi programma). Maggiori informazioni e aggiornamenti sono reperibili alle pagine web http://web.math.unifi.it/users/fnardi/seminari/ <http://web.math.unifi.it/users/fnardi/seminari/> o http://silicio.math.unifi.it/wordpress/probability/days-in-probability-and-… <http://silicio.math.unifi.it/wordpress/probability/days-in-probability-and-…> Vi aspettiamo numerosi Gianmarco Bet e Francesca R. Nardi Dipartimento di Matematica e Informatica Università degli Studi di Firenze Viale Morgagni 67, Firenze, Italy

1 0

[Simai-soci] Fwd: Urgent: Open Letter to reinstate Research and Education as EC areas of focus
by c.costantini＠unich.it 20 Sep '19

20 Sep '19

Inolto questo messaggio della SIMAI. Un saluto, Cristina Costantini Cari Soci, ho ricevuto dalla presidente dell'ICIAM questo messaggio riguardante l'attuale composizione della Commissione Europea, dove non e` piu` presente un Commissario con un mandato specifico alla Ricerca, e alla Formazione, ma solo un generico "Commissioner for innovation and youth". Alcuni colleghi hanno preparato una lettera aperta per la Presidente della Commissione per sollecitare una migliore precisazione delle deleghe in "Education, Research, Innovation and Youth", per ribadire il ruolo fondamentale e specifico della formazione e ricerca. Se condividete la posizione firmate la petizione all'indirizzo indicato nel messaggio allegato (e fate circolare la lettera tra i colleghi). Un saluto, Luca ---------- Forwarded message --------- From: Maria J. ESTEBAN <esteban(a)ceremade.dauphine.fr> Date: Thu, Sep 19, 2019 at 2:05 PM Subject: Fwd: Urgent: Open Letter to reinstate Research and Education as EC areas of focus To: Wil Schilders <w.h.a.schilders(a)tue.nl>, Ari Laptev < laptev(a)mittag-leffler.se>, Helge Holden <secretary(a)mathunion.org>, Volker Mehrmann <Mehrmann(a)math.tu-berlin.de>, Alfio Quarteroni < alfio.quarteroni(a)epfl.ch>, luca formaggia <luca.formaggia(a)polimi.it>, Ball, John M <john.ball(a)hw.ac.uk> Dear friends, urgent action is required in the direction of Bruxelles, not only because there is no longer a commissioner for research (see below), but also because there is the looming threat of a substantial cut of the Horizon Europe Budget. If you resonate with what is written below could you please sign on the web site www.futureofresearch.eu and invite fellow scientists to do the same, i.e. widely distribute the email to all scientists? It is important to have also very visible people who sign, recipient of prizes or directors of big institutes, if you get them to sign, please signal to us so that it can be mentioned on the main webpage. It is urgent as the hearing is on 30.09.2019. At least 10000 signatures are needed in the next few days in order to be able to address the parliament.. thanks so much and all the best Maria ********************* Dear Colleague, We are writing you for the following reason: the candidates for the new EU commissioners were presented last week. In the new commission the areas of education and research are not explicitly represented anymore and instead are subsumed under the "innovation and youth" title. This emphasizes economic exploitability (i.e. "innovation") over its foundation, which is education and research, and it reduces “education” to “youth” while being essential to all ages. We, as members of the scientific community of Europe, wish to address this situation early on and emphasize both to the general public, as well as to relevant politicians on the national and European Union level, that without dedication to education and research there will neither exist a sound basis for innovation in Europe, nor can we fulfill the promise of a high standard of living for the citizens of Europe in a fierce global competition. President von der Leyen, in her mission letter to commissioner Gabriel (Web link to Mandate Letter: https://ec.europa.eu/commission/sites/beta-political/files/mission-letter-ma riya-gabriel-2019_en.pdf <https://ec.europa.eu/commission/sites/beta-political/files/mission-letter-m…>), has emphasized that “education, research and innovation will be key to our competitiveness”. We have prepared an open letter at www.futureofresearch.eu to demand that the EU commission revises the title for commissioner Gabriel to “Education, Research, Innovation and Youth” reflecting Europe’s dedication to all of these crucial areas. We also call upon the European Parliament to request this change in name before confirming the nominees for commissioner. Please support this letter by going to www.futureofresearch.eu and signing up as supporter on line. With best regards, Prof. Dr. Siegfried Bethke (MPI for Physics) Prof. Dr. Nora Brambilla (TU-München) Prof. Dr. Aldo Deandrea (U-Lyon 1) Prof. Dr. Carlo Guaraldo (INFN Frascati) Prof. Dr. Luciano Maiani (U-Roma La Sapienza) Prof. Dr. Antonio Pich (U-València) Prof. Dr. Alexander Rothkopf (U-Stavanger) Prof. Dr. Johanna Stachel (U-Heidelberg) -- ============================================ Multidisciplinary topmaster program in Nanoscience: http://www.rug.nl/research/zernike/education/topmasternanoscience/ ============================================ Prof. Dr. Petra Rudolf Head of the Surfaces and Thin Films group Zernike Institute for Advanced Materials University of Groningen visiting address: Nijenborgh 4, 9747 AG Groningen, The Netherlands postal address: P.O. Box 221, 9700 AE Groningen, The Netherlands phone: +(31)50-363 4736 e-mail: P.Rudolf(a)rug.nl web page: http://www.rug.nl/research/zernike/surfaces-and-thin-films/ secretary: Hilda Riemens phone: +(31)50-363 4973 fax: +(31)50-363 7208 e-mail: H.T.Riemens(a)rug.nl _______________________________________________ Simai-soci mailing list Simai-soci(a)lists.math.unifi.it https://lists.math.unifi.it/mailman/listinfo/simai-soci To unsubscribe, send an email to simai-soci-unsubscribe(a)lists.math.unifi.it and follow the instructions

1 0

ERC funded postdoctoral position at Università di Torino
by Stefano Favaro 18 Sep '19

18 Sep '19

The Department of “Scienze Economico-Sociali e Matematico Statistiche" at Università di Torino, invites applications for a postdoctoral position in Statistics within the European Research Council (ERC) project “Nonparametric Bayes and empirical Bayes for species sampling problems: classical questions, new directions are related issues”. Details of the postdoctoral position are available at the bottom of this letter. Deadline for applications: 8 OCTOBER 2019 at 1pm (Italian time). Information for applicants are available (only in Italian) at the Call for Applications https://pica.cineca.it/unito/assegni-di-ricerca-unito-2019-iv/file/BANDO.pdf <https://pica.cineca.it/unito/assegni-di-ricerca-unito-2019-iv/file/BANDO.pdf>. Within the Call for Applications, the postdoctoral position appears at page 23 under the section “Dipartimento di Scienze Economico-Sociali e Matematico-Statistiche”: Postdoctoral position: “Statistica Bayesiana nonparametrica e Bayesiana nonparametrica empirica per problemi di stima di funzionali discreti” Reference code: ESOMAS.2019.07 Supervisor: Stefano Favaro 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 IV 2019”, and then registering to the system. 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 information on the postdoctoral position and any assistance in 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 January 2020, 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/

1 0

3-year posdoc in Edinburgh
by Tiziano De Angelis 17 Sep '19

17 Sep '19

Dear All, Please find below the advert for a 3-year postdoc at the University of Edinburgh. Best wishes Tiziano %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Announcement: 3-year PostDoc at the University of Edinburgh in Stochastic Analysis for Energy Systems in collaboration with ENSAE ParisTech and FiMe-Lab-Paris A 3-year PostDoctoral position in Edinburgh (Scotland/UK) for a joint collaborative project with Prof P. Tankov (ENSAE ParisTech) and Dr. C. Alasseur (head of Finance of Energy Market Research Centre (EDF-FiMe-Lab)). If you are interested contact us as soon as possible. The overall objective of this 3-year project is to develop novel game-theoretical models and strategies to optimize short term trading and storage in electricity markets, understand the impacts of the large-scale low-cost storage on prices and market structure and help translate the research outcomes to practical industrial solutions. Core scientific requirements: The models that the research team will develop will broadly use existing work optimal control, games, mean-field games, stochastic analysis, mathematical finance. The fellow should have prior knowledge (ideally including having made significant advances) in at least one of the above fields. Core eligibility requirements (all are strict without exception): (a) At the date 31/Oct/2019 the candidate must *not* have resided or carried out their main work activity (including studying) in the UK for more than 12 months in the past 3 years (not counting holidays or short stays). (b) Applicants must, at the date of the application deadline (31 Oct 2019), be in possession of a doctoral degree or have at least four years full-time equivalent research experience. (c) A (5 page) research proposal must be submitted -- If you are interested please contact us as soon as possible (G.dosReis(a)ed.ac.uk). Start date: The start date is negotiable up to the 1/June/2020. Start dates after this timepoint are possible but will reflect a shorter contract duration. Benefits of the position: - salary scale (£33,199 - £39,609/year) - you will receive payments into a pension scheme and other benefits of employment. - Each year, you will be able to use funds up to £2500 to support attendance at conferences and meetings and £6000 to support other research costs. - support available for relocation costs Contact person: Goncalo dos Reis Email: G.dosReis(a)ed.ac.uk Webpage: https://www.maths.ed.ac.uk/~gdosrei %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

1 0

Minicourse on Clearing in financial systems by prof Kabanov, LUISS
by Sara 17 Sep '19

17 Sep '19

Professor Yuri Kabanov, University of Besancon, will give three lectures on Clearing in financial systems on the next three Thursdays: September 19, 26 and October 3. The seminars will take place at 17:30 in Room 106a, LUISS viale Romania 32, Roma, and last approximately 2 hours. The program is attached below. Best, Sara Biagini -- Sara Biagini, Professor of Mathematical Finance Department of Economics and Finance LUISS Guido Carli Address: viale Romania, 32 - 00197 Roma Web: http://sites.google.com/site/sarabiagini/

1 0

Posto RTDB mat/06 alla Sapienza
by Faggionato, Alessandra 16 Sep '19

16 Sep '19

Buongiorno, segnalo che e` uscito il bando per un posto da Ricercatore di Tipo B Mat/06 presso il Dipartimento di Matematica all'Universita' La Sapienza: https://web.uniroma1.it/trasparenza/dettaglio_bando/145453 Vi pregherei di diffondere la notizia tra i possibili interessati. Grazie Saluti, Alessandra -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

1 0

Job offer - PhD / PostDoc in Probability in Hildesheim (Germany)
by Sebastian Mentemeier 16 Sep '19

16 Sep '19

Dear colleagues, there is a new group in Probability at the University of Hildesheim (Germany) looking for PhD students and/or Post-Docs with research interests preferably in the field of branching processes, time series analysis or spatial stochastics. Up to two positions (100 %, TV-L 13) can be filled. The position is with teaching obligations. Applicants should be able to teach math in German after their first year. Applicants who finish their Master thesis during this winter term are also welcome. Please contact me for further information. The detailed job offer can be found here (deadline will be extended until October, 7th): https://www.uni-hildesheim.de/stellenmarkt/stellenanzeige/artikel/2019166-w… With best regards, Sebastian Mentemeier -- Prof. Dr. Sebastian Mentemeier Institut für Mathematik Fachbereich 10, Mathematik und Naturwissenschaften Universitaet Kassel Heinrich-Plett-Str. 40, D-34132 Kassel Tel: +49 561 804-4587 E-mail: mentemeier(a)mathematik.uni-kassel.de

1 0

Corso STATISTICAL LEARNING AND BIG DATA
by Andrea Ongaro 16 Sep '19

16 Sep '19

University of Milano-Bicocca Department of Economics, Management and Statistics Phd Programme in Economics and Statistics ***************************************************************************** Si comunica che il Prof. Saharon Rosset, della Tel Aviv University, terrà, nell'ambito delle attività del Dottorato di Ricerca in Economia e Statistica dell'Università degli Studi di Milano-Bicocca, un corso dal titolo: STATISTICAL LEARNING AND BIG DATA http://www.tau.ac.il/~saharon/StatLearn-Milan.html DOCENTE: Saharon Rosset è Professore di Statistica all'Università di Tel Aviv. I suoi interessi di ricerca riguardano statistical learning, data mining e statistical genetics. Prima del suo incarico a Tel Aviv, ha conseguito il dottorato di ricerca presso la Stanford University nel 2003 sotto la supervisione dei Professori Jerome Friedman e Trevor Hastie. I suoi lavori sono stati pubblicati nelle più prestigiose riviste di statistica e machine learning e ha vinto la KDD cup, una delle più prestigiose competizioni di data mining, 4 volte. https://m.tau.ac.il/~saharon/ PERIODO: 7-18 Ottobre 2019 Il corso ha la durata di 28 ore. Le lezioni avranno inizio lunedì 7 ottobre 2019 e proseguiranno fino a venerdì 18, con il seguente orario: - lunedì-venerdì ore 14:30-17:00 - venerdì ore 17:00-18:30 ISCRIZIONE AL CORSO: dal 16 al 23 Settembre 2019 (vedi allegato) *Per maggiori dettagli (docente, programma, prerequisiti, iscrizione), si veda la locandina in allegato. * Un cordiale saluto, Andrea Ongaro

1 0

Seminar Dunson @BIDSA, Bocconi
by Giacomo Zanella 16 Sep '19

16 Sep '19

We kindly invite you to the following BIDSA seminar: “Learning and exploiting low-dimensional structure in high-dimensional data” David Dunson (Duke University) September 19, 2019 | 12:30 | Room AS03 Bocconi University, Via Roentgen 1, underground floor Abstract: This talk will focus on the problem of learning low-dimensional geometric structure in high-dimensional data. We allow the lower-dimensional subspace to be non-linear. There are a variety of algorithms available for "manifold learning" and non-linear dimensionality reduction, mostly relying on locally linear approximations and not providing a likelihood-based approach for inferences. We propose a new class of simple geometric dictionaries for characterizing the subspace, along with a simple optimization algorithm and a model-based approach to inference. We provide strong theory support, in term of tight bounds on covering numbers, showing advantages of our approach relative to local linear dictionaries. These advantages are shown to carry over to practical performance in a variety of settings including manifold learning, manifold de-noising, data visualization (providing a competitor to the popular tSNE), classification (providing a competitor to deep neural networks that requires fewer training examples), and geodesic distance estimation. We additionally provide a Bayesian nonparametric methodology for inference, using a new class of kernels, which is shown to outperform current methods, such as mixtures of multivariate Gaussians. Speaker: David Dunson is Arts and Sciences Distinguished Professor of Statistical Science and Mathematics at Duke University. He is known for his broad spanning contributions to statistical methodology, with a particular focus on novel modeling frameworks and Bayesian approaches that are motivated by complex and high-dimensional data collected in the sciences. This includes latent factor, dimensionality reduction, nonparametric and machine learning methodology. Primary areas of application include neurosciences and brain network modeling, environmental health, ecology, and human fertility among others. He is a fellow of the ASA, IMS and ISBA and has won numerous awards, including most notably the 2010 COPSS President’s Award. His work is very widely cited and he has an H-index over 70 on Google Scholar. Best regards, Giacomo Zanella

1 0

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random