Random April 2018

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37 participants
52 discussions

Seminario congiunto di Fisica Matematica e Probabilita' a Roma1
by Faggionato, Alessandra 09 Apr '18

09 Apr '18

Mercoledì 18 aprile, ore 16:30, aula di Consiglio, Dipartimento di Matematica, La Sapienza. Speaker: Fabio Toninelli (Université Lyon 1) *Title: Lozenge tiling dynamics and hydrodynamic equation* Abstract: We study a reversible continuous-time Markov dynamics on lozenge tilings of the torus, introduced by Luby et al. Single updates consist in concatenations of n elementary lozenge rotations at adjacent vertices, with rate 1/n. The dynamics can also be seen as a reversible stochastic evolution of a 2+1-dimensional interface. The dynamics is known to enjoy especially nice features: a certain Hamming distance between configurations contracts with time on average and the relaxation time of the Markov chain is diffusive. We present another remarkable feature of this dynamics, namely we derive, in the diffusive time scale, a fully explicit hydrodynamic limit equation for the height function (in the form of a non-linear parabolic PDE). The mobility coefficient μ in the equation has non-trivial but explicit dependence on the interface slope and, interestingly, is directly related to the system’s surface free energy. The derivation of the hydrodynamic limit is based on the so-called H^{-1} method due to Yau and Funaki-Spohn. Based on joint work with Benoit Laslier (Paris 7). -- ************************************************* 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 *************************************************

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38th Finnish Summer School on Probability and Statistics (28.5-1.6.2018 in Lammi Finland)
by Elvira Di Nardo 08 Apr '18

08 Apr '18

Dear friends of Stochastics and Statistics, Registration <https://elomake.helsinki.fi/lomakkeet/87642/lomake.html> to the 38th Finnish Summer School on Probability and Statistics (28.5-1.6.2018 in Lammi Biological Research Station, Finland), is open! Please check the website https://fdnss.fi/summer-school/38th-summer-school/ Courses Ivan Nourdin <https://sites.google.com/site/ivannourdin/home> (U Luxembourg): *The Malliavin-Stein approach*Dylan Possamaï <https://sites.google.com/site/possamaidylan/> (Columbia U): *An introduction to backward SDEs and applications in finance and economics* Piotr Zwiernik <http://84.89.132.1/~piotr/> (U Pompeu Fabra): *Latent tree models* The Finnish Summer School on Probability and Statistics has a long tradition starting from the first summer school in Tuusula 1976. The mission of the summer school is to provide one-week intensive courses on active research topics in probability and statistics, lectured by leading scholars in the field. The school is targeted primarily for doctoral students in probability, statistics, and related areas. Researchers advanced MSc students and fresh postdocs are also encouraged to apply. The summer schools are currently organized by the Finnish Doctoral Education Network in Stochastics and Statistics (FDNSS). For enquiries, please contact Dario Gasbarra <https://wiki.helsinki.fi/display/mathstatHenkilokunta/Gasbarra,+Dario> PL 68 (Gustaf Hällströmin katu 2b) 00014 University of Helsinki, Finland Phone: +358 9 191 51407 Email: dario.gasbarra ‘at’ helsinki.fi -- %------------------------------------------------------- Elvira Di Nardo Dept. Mathematics "G. Peano" University of Torino Via Carlo Alberto 10 10123 Torino, Italia tel. +39 0116702862 fax +39 0116702878 http://www.elviradinardo.it %-------------------------------------------------------

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Corso KOLOKOLTSOV
by Matteo Ruggiero 06 Apr '18

06 Apr '18

Cari colleghi, nell’ambito del programma di Visiting Professors per la Laurea Magistrale in Stochastics and Data Science dell’Università di Torino, siamo lieti di annunciare il seguente corso: Vassili KOLOKOLTSOV (University of Warwick) MARKOV SEMIGROUPS AND DIFFUSION PROCESSES che si terrà nell’aula 12 di Corso Unione Sovietica 218/bis, 10134, Torino, secondo il seguente calendario: Apr 9: 9:15-11:15 Apr 10: 9:15-11:15 Apr 11: 4:00-6:00 Apr 12: 11:15-13:15 Apr 13: 9:15-11:15 Apr 16: 9:15-11:15 Apr 17: 9:15-11:15 Apr 18: 4:00-6:00 Il corso è rivolto agli studenti del primo anno della Laurea Magistrale, ma la partecipazione è libera agli interessati. Il programma completo di Visiting Professors si può consultare alla pagina http://www.master-sds.unito.it/do/home.pl/View?round=1&doc=visitingprofesso… Cordiali saluti, I coordinatori del Programma Laura Sacerdote e Matteo Ruggiero --- Matteo Ruggiero University of Torino and Collegio Carlo Alberto www.matteoruggiero.it

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Summer School MATHEMATICS OF PLANET EARTH
by Enrico Scalas 06 Apr '18

06 Apr '18

Car* collegh*, vi segnalo la seguente scuola a Reading, UK. Cordiali saluti Enrico Scalas ---------------------------------------------------------------------------- Summer School MATHEMATICS OF PLANET EARTH April 23 -26, 2018 at University of Reading. Course Titles and Conveners: Freddy Bouchet (ENS de Lyon, Climate and Statistical Mechanics group): ``Dynamical system and statistical mechanics approaches to geophysical fluid dynamics and climate'' Mickael Chekroun (UCLA Athmospheric and Ocean science): ``Stochastic Dynamics and applications to weather'' Edriss Titi (Texas A&M University, Matematics and Weizmann Institute): ``Data Assimilation of GFD'' Each course consists of six lectures (45 mins each) and a one hour tutorial. The school is hosted and supported by the EPSRC Centre for Doctoral Training Mathematics for Planet Earth (MPECDT). The school is aimed at PhD students and early research scientists, but any researcher interested in participating is warmly welcomed. For further information consult the webpage: http://www.reading.ac.uk/maths-and-stats/news/Summer-School-MPE-2018.aspx Summer School Mathematics of Planet Earth - University of Reading <http://www.reading.ac.uk/maths-and-stats/news/Summer-School-MPE-2018.aspx> www.reading.ac.uk Summer School Mathematics of Planet Earth

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RtdA Mat06 Sapienza Roma
by Luisa Beghin 06 Apr '18

06 Apr '18

Con preghiera di diffusione: L'*Università* *Sapienza di Roma *ha pubblicato il bando per il reclutamento di un *RTD-A* nel settore *MAT/06, *presso il Dipartimento di Scienze Statistiche, per attività di ricerca nell'ambito dei processi aleatori e delle equazioni con operatori pseudodifferenziali. *Il bando scade il 5 maggio 2018* ed è disponibile al link http://www.dss.uniroma1.it/sites/default/files/Bando%20Beghin%20f.to_.pdf Cordiali saluti Luisa Beghin ***************************************************************** Luisa Beghin Dipartimento di Scienze Statistiche Fac. Ingegneria dell'Informazione, Informatica e Statistica "SAPIENZA" Università di Roma Piazzale Aldo Moro 5, 00185 Roma T (+39) 06 49910543 F (+39) 06 4959241 http://www.dss.uniroma1.it/?q=content/beghin-luisa ***************************************************************** -- ___________________________________________ *Il tuo 5 diventa 1000* Fai crescere la tua università Dona il 5 per mille alla Sapienza Codice fiscale: *80209930587* https://www.uniroma1.it/it/pagina/fai-crescere-la-tua-universita-con-il-cin… <https://www.uniroma1.it/it/pagina/fai-crescere-la-tua-universita-con-il-cin…>

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Logic, Uncertainty and Games Summer School
by hykel hosni 06 Apr '18

06 Apr '18

*FINAL CALL FOR APPLICATIONS* Logic, Uncertainty and Games Summer School (LUG2018) Lake Como School of Advanced Studies 9th-13th July 2018 Aims and structure ================== The goal of the Logic, Uncertainty and Games School is to contribute towards the creation of cross-disciplinary common grounds for research on rational reasoning and (interactive) decision making under uncertainty. To this end the School will feature three eight-hour tutorials delivered by leading experts in the fields of Logic, Uncertainty and Games. Each tutorial is followed by one (or more) example-class session aimed at developing in greater detail one specific topic (e.g. the full proof of a theorem or a generalisation of a notion which is being used in a particular case). Finally, graduate students and junior researchers will deliver Work-in-progress sessions. This will provide them a unique opportunity to receive feedback from the School lecturers, while developing strong inter-disciplinary communication skills. The summer school is co-located with the LOFT 2018 workshop, to be held on the following week (16-18 July) at Bocconi University, Milan Confirmed tutorial speakers =========================== Logic ~~~~~ Sophie Pinchinat (Department of Electrical Engineering and Computer Science, University of Rennes 1) Uncertainty ~~~~~~~~~~~ Sujoy Mukerji (School of Economics and Finance, Queen Mary London) Games ~~~~~ Burkhard C. Schipper (Department of Economics, University of California, Davis) Closing lecture ~~~~~~~~~~~~~~~ Joe Halpern (Computer Science Department, Cornell University) How to apply ============ We invite applications from up to 35 advanced postgraduate students and early career researchers from Economics, Computer Science, Philosophy, and related disciplines to participate. The application process will be competitive and participants will be selected according to research interests and, whenever meaningful, publications. To apply visit [http://lucg.lakecomoschool.org/application/] In case you intend to give a presentation, you should add to your application: - the title of your talk - one page abstract of your contribution Registration fees ================= There is a registration fee of 250 euro (VAT 22% included) which covers all lectures; course material; wi-fi connections; lunches and coffee breaks; social dinner. Limited financial support may be available for strong applicants who do not have access to funding, please see the application webpage for details. Deadlines ========= - Application: April 10, 2018 - Notification of acceptance: May 2, 2018 - Registration (only accepted students): May 15, 2018 School Directors ================ Pierpaolo Battigalli, Università Bocconi, pierpaolo.battigalli(a)unibocconi.it Hykel Hosni, Università degli studi di Milano and Università Bocconi hykel.hosni(a)unibocconi.it Massimo Marinacci, Università Bocconi, massimo.marinacci(a)unibocconi.it

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Seminario LISEO
by Matteo Ruggiero 06 Apr '18

06 Apr '18

STATISTICS SEMINARS @ COLLEGIO CARLO ALBERTO Venerdì 13 Aprile 2018, alle ore 12:00, presso il nuovo edificio del Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terrà il seguente seminario: ------------------------------------------------ Brunero LISEO (Università di Roma La Sapienza) MODELLING PREFERENCE DATA WITH THE WALLENIUS DISTRIBUTION The Wallenius distribution is a generalisation of the Hypergeometric distribution where weights are assigned to balls of different colours. This naturally defines a model for ranking categories which can be used for classification purposes. Since, in general, the resulting likelihood is not analytically available, we adopt an approximate Bayesian computational (ABC) approach for estimating the importance of the categories. We illustrate the performance of the estimation procedure on simulated datasets. Finally, we use the new model for analysing two datasets about movies ratings and Italian academic statisticians' journal preferences. The latter is a novel dataset collected by the authors. This is a joint work with Clara Grazian and Fabrizio Leisen. ------------------------------------------------ Tutti gli interessati sono invitati a partecipare. Il seminario è organizzato dalla "de Castro" Statistics Initiative (www.carloalberto.org/stats) in collaborazione con il Collegio Carlo Alberto. Cordiali saluti, Matteo Ruggiero --- Matteo Ruggiero University of Torino and Collegio Carlo Alberto www.matteoruggiero.it

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Seminar by Giacomo Livan, UCL April 19, 2018 11:00 AM @Bologna, Viale Filopanti 5 Aula Studio (ex Sala Biblioteca)
by Giacomo Bormetti 06 Apr '18

06 Apr '18

? Dear all, Thursday April 19, 2018 at 11:00 AM in Aula Studio (ex Sala Biblioteca) 1st floor, Viale Filopanti, 5 Bologna. Giacomo Livan University College London will present Detecting and measuring bias in online platforms: A Network Science approach The last few years have witnessed the rise of the Sharing Economy, a collection of decentralized online platforms whose users exchange knowledge, goods, and resources on a peer-to-peer basis. Sharing Economy platforms are often praised for their meritocratic approach, where all participants, regardless of their gender or ethnicity, receive the same opportunities to emerge through digital peer review mechanisms. Yet, they have recently come under fire due to reports of discriminatory behaviours and manipulations of their reputation systems. This raises an important question: are Sharing Economy platforms fair marketplaces, where all participants operate on a level playing field, or are they large-scale online aggregators of offline human biases? In this talk I will address this question on a number of examples, showing how online platforms can be represented in terms of networks, and how this allows to detect and measure some of the biases that might affect their users' behaviour. In particular, I will present clear evidence of avoidance between users from different ethnic backgrounds on Airbnb, and I will show how user reputation scores are distorted by the widespread practice of reciprocating highly positive ratings in a variety of platforms. I will conclude by discussing how these findings can be used to provide platform design recommendations, aimed at exposing and possibly reducing the biases we detect, in support of a fairer and more inclusive growth of Sharing Economy platforms. ? Feel free to forward this message to anyone who is potentially interested in. Best, Giacomo Giacomo Bormetti Professore associato Metodi matematici per l'economia e le scienze attuariali e finanziarie Dipartimento di Matematica, Università di Bologna?

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From Blockchain&Bitcoin to Distributed Ledger Technologies, Smart Contracts and Cryptocurrencies in Finance
by Daniele Marazzina 06 Apr '18

06 Apr '18

Con preghiera di diffusione ________________________________ Da: qfinlab(a)polimi.it Oggetto: From Blockchain&Bitcoin to Distributed Ledger Technologies, Smart Contracts and Cryptocurrencies in Finance Il Nicola Bruti Liberati Quantitative Finance Lab del Dipartimento di Matematica del Politecnico di Milano organizza nei giorni 9-10 maggio 2018 la conferenza >From Blockchain&Bitcoin to Distributed Ledger Technologies, Smart Contracts and Cryptocurrencies in Finance La conferenza si svolge nell’ambito dell'iniziativa Polimi Fintech Journey grazie al supporto di Deloitte Consulting. Allego il programma in pdf. La conferenza si rivolge al mondo accademico e a quello dell’industria finanziaria con l’intenzione di fare il punto attorno a tre temi: aspetti tecnologici legati al mondo DLT e degli smart contracts, i risvolti economici e finanziari di questi strumenti, le potenziali applicazioni al mondo della finanza. La conferenza ha un taglio multidisciplinare con l’intervento di esperti informatici e del mondo della finanza, esponenti dell’industria finanziaria e delle autorità di regolazione, La conferenza sarà preceduta da un tutorial che intende fornire un’introduzione sulla tecnologia di questi strumenti. Per dettagli sul programma e per la registrazione si prega di consultare il sito https://www.mate.polimi.it/fintech/. Emilio Barucci

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[EVENT] Statalk2018@Polimi - REGISTRATION IS OPEN
by Matteo Fontana 06 Apr '18

06 Apr '18

Dear Random; The next StaTalk will be held in a month, on the 4th of May 2018 at Politecnico di Milano. The title of StaTalk@Polimi is "Complex Data and Real World Applications". StaTalks are one-day events organized by PhD students in statistics and related fields of different universities all around Italy. This time the StaTalk is organized and hosted by Department of Mathematics of Politecnico. StaTalk@Polimi is focused on giving a perspective on the modern challenges of applied statistics, combining novel statistical techniques with challenging problems in different application fields such as Neuroimaging, Smart Cities, Climate and Earth Sciences, and Administrative Data Analysis. You can have additional information about the schedule of the event, the topics and the speakers on the Statalk@Polimi website: https://statalk2018polimi.github.io/ Attendance is free but registration is required for organizational reasons. Save the date! For any additional information or questions you can contact us at statalk2018(a)polimi.it<mailto:statalk2018@polimi.it> Matteo Fontana for the StaTalk Organizing Committee

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Random April 2018