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Seminar announcement Thursday 25 - Reciprocity in a Preferential Attachment Network (prof. Tiandong Wang)
by Gianmarco Bet 16 Mar '21

16 Mar '21

Dear colleagues, On March Thursday 25 at 16:00, prof. Tiandong Wang (Texas A&M) will give a virtual seminar “in Florence”, to which you are all invited. You can find title and abstract below. Title: Reciprocity in a Preferential Attachment Network Abstract: Empirical studies show that online social networks have not only in- and out-degree distributions with Pareto-like tails, but also a high proportion of reciprocal edges. A classical directed preferential attachment (PA) model generates in- and out-degree distribution with power-law tails, but theoretical properties of the reciprocity feature in this model have not yet been studied. We derive the asymptotic results on the number of reciprocal edges between two fixed nodes, as well as the proportion of reciprocal edges in the entire PA network. We see that with certain choices of parameters, the proportion of reciprocal edges in a directed PA network is close to 0, which differs from the empirical observation. This points out one potential problem of fitting a classical PA model to a given network dataset with high reciprocity, and indicates alternative models need to be considered. The seminar will be on Zoom. You can find the information to join below. Topic: Tiandong Wang - Reciprocity in a Preferential Attachment Network Time: Mar 25, 2021 04:00 PM Rome https://us02web.zoom.us/j/82762436142?pwd=MW45SWN6NTBqV0VWbVJWREhESmtaZz09 Meeting ID: 827 6243 6142 Passcode: 897951 If you know of someone who might be interested and is not subscribed to the random mailing list, please do not hesitate to forward this announcement to them. Kind regards, Gianmarco ---------------------------------------------------------------------- Gianmarco Bet (he/him) Junior researcher https://gianmarco.bet Phone: (+39) 055 2751491 Department of Mathematics and Informatics "U. Dini" University of Florence Viale Morgagni, 65 50134 Firenze, Italy Office 64 ----------------------------------------------------------------------

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2 posizioni PhD aperte nell'ambito del progetto europeo ITN ETN TraDE-OPT
by villa silvia 15 Mar '21

15 Mar '21

Cari colleghi, vorrei pubblicizzare due posizioni di dottorato aperte presso l’Universita’ di Graz e presso l’Università di Louvain nell’ambito del progetto europeo TraDE-OPT <https://trade-opt-itn.eu/> . Di seguito la call piu’ precisa. Cari saluti Silvia Villa ________________________________________ 2 PHD positions to work broadly on large scale optimization for machine learning, supported by an ITN ETN project (https://trade-opt-itn.eu <https://trade-opt-itn.eu/>). The projects will aim at developing theoretical and algorithmic ideas that can explain the success of current systems as well as suggest the development of novel practical and efficient solutions. Candidates must have strong mathematical and computational skills. While the emphasis is on methodological and computational aspects, the candidates will have the opportunity to work in close collaborations on a number of applications, in connections with the industrial partners of the project. The research activities will be carried out at the University of Graz, under the supervision of Prof. Bredies, for one project and at the University Catholique de Louvain under the supervision of Prof. Glineur, for the other project. Applicants need to write an email to: malga(a)unige.it <mailto:malga@unige.it> specifying to which positions they are interested within the ***end of March***. Eligibility criteria • Candidates must – at the date of recruitment – have obtained the MSc degree entitling you to embark on a doctorate • Candidates must – at the date of recruitment – be within the first four years (full-time equivalent research experience) of your research career and not have a doctoral degree • Mobility rule: candidates must not have resided or carried out your main activity (work, studies, etc.) in the country of the host organisation you are applying (i.e. Italy) for more than 12 months in the 3 years immediately prior to the recruitment date. Compulsory national service and/or short stays such as holidays are not taken into account. Please make sure you comply with the eligibility criteria before applying. You need to be able to provide documentation proving your eligibility for recruitment. You can read the full description of eligibility criteria in the Information Note for ITN Fellows. ____________________________________________ See also: https://euraxess.ec.europa.eu/jobs/61117 <https://euraxess.ec.europa.eu/jobs/516136>

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avviso seminario lunedì 15 - Multiscale Approximations In Stochastic Biochemical Networks
by Enrico Bibbona 14 Mar '21

14 Mar '21

Gentilissimi, con la presente si comunica che lunedì 15 marzo, ore 16:30, la Prof.ssa Hye-Won Kang (University of Maryland Baltimore County) presenterà un seminario dal titolo: “Multiscale Approximations In Stochastic Biochemical Networks” Questo evento è parte del "Progetto di eccellenza", DISMA - Politecnico di Torino. Maggiori informazioni reperibili nella locandina allegata e sul sito: www.polito.it/disma-excellence/ Il seminario si terrà in forma telematica, tramite la piattaforma Zoom. Per collegarsi, è necessario utilizzare il seguente link https://polito-it.zoom.us/j/97383163671?pwd=T2pDZ2tpa0xTU3dOL1AyV3R3TEZuZz09 ID riunione: 973 8316 3671 Passcode: 343972 Accedendo al seminario, si prega di tenere microfono e videocamera disattivati. Per porre domande al termine del seminario, si prega di utilizzare la chat per chiedere la parola. Cordiali saluti - - - - - - - - - - - - - - - - - - - - - - - - - - - - Dear colleagues, it is our pleasure to invite you to the seminar “Multiscale Approximations In Stochastic Biochemical Networks” by prof. Hye-Won Kang (University of Maryland Baltimore County). The seminar will be held on Monday, March 15, at 16:30. This event is part of "Progetto di eccellenza", DISMA - Politecnico di Torino. Further information available on the attached flyer and www.polito.it/disma-excellence/ The seminar will be an online event on Zoom platform. To connect, please follow this link https://polito-it.zoom.us/j/97383163671?pwd=T2pDZ2tpa0xTU3dOL1AyV3R3TEZuZz09 ID riunione: 973 8316 3671 Passcode: 343972 By connecting to the seminar, please switch both microphone and webcam off. The question time will be at the end of the talk. Please, use the chat to ask for the floor. Best regards, DISMA Politecnico di Torino Dipartimento di eccellenza 2018-2022 Enrico Bibbona Associate Professor of Statistics Probability, Statistics and Optimization group Department of Mathematical Sciences "G. L Lagrange" Politecnico di Torino

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Fwd: Portuguese mathematical society meeting - 12-16 july 2021
by Faggionato, Alessandra 14 Mar '21

14 Mar '21

Ricevo e con piacere inoltro. Saluti Alessandra ---------- Forwarded message --------- Da: Patricia Gonçalves <pgoncalves(a)tecnico.ulisboa.pt> Date: dom 14 mar 2021 alle ore 17:32 Subject: Portuguese mathematical society meeting - 12-16 july 2021 To: Patrícia Gonçalves <patricia.goncalves(a)math.tecnico.ulisboa.pt> Dear Colleagues, the Portuguese Mathematical Society is organizing the ENSPM2021 on 12-16 July 2021 enspm2021.spmatematica.online The list of plenary speakers includes 4 Fields Medallists and several ICM invited speakers, along with recipients of many other distinctions such as the EMS Prize, Euler Medal, Fermat, Fulkerson, Henri Poincaré, Loève and Paul Doistau–Émile Blutet, Philip Leverhulme Prizes, MacArthur Fellows, CNRS Silver Medal, NSF Career, TWAS Prize, Whitehead Jr&Sr, and certainly many more awards in the future! The meeting has 9 slots for parallel sessions, two hours each, where many other outstanding mathematicians will have the opportunity to share and discuss ideas. We hope this meeting will help important ideas to flourish, inspire and spread. We would be very grateful if you could help this message reach anyone who may be interested. All are invited to join and/or to propose extra parallel sessions. On behalf of the organizers, João Araújo Mário Bessa Patrícia Gonçalves Luís Merca Patrícia Gonçalves Mathematics Department Instituto Superior Técnico University of Lisbon Portugal -- ************************************************* 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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RTD-B MAT/06 - Università della Basilicata
by Antonio DI CRESCENZO 13 Mar '21

13 Mar '21

Si rende noto che nella G.U. – IV Serie Speciale – “Concorsi ed Esami” n. 20 del 12/03/2021 (con scadenza alle ore 18.00 del 27/03/2021) sarà bandito un concorso da Ricercatore a tempo determinato *RTD-B* presso l'*Università della Basilicata* (Dipartimento di Matematica, Informatica ed Economia, sede: Potenza) nel SSD *MAT/06 (Probabilità e Statistica Matematica)*. Per informazioni è possibile contattare il coordinatore del CdS in Matematica, Alberto Cialdea (alberto.cialdea(a)unibas.it)

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Online seminar on "Machine Learning in Finance"
by Sara Svaluto-Ferro 12 Mar '21

12 Mar '21

We are pleased to announce a world online seminar on "Machine Learning in Finance" which will start on March 30th. The seminar will be held on a bi-weekly basis via Zoom at 7PM CET/10AM PST/1PM EST. Every two weeks, we will invite a speaker to cover a topic at the interface of machine learning and finance. Our opening speaker is Manuela Veloso from JP Morgan AI Research and CMU. More detailed information, in particular on the subsequent speakers can be found on our webpage https://sites.google.com/view/mlfinance/home <https://sites.google.com/view/mlfinance/home>. We also have a mailing list which can be subscribed through https://docs.google.com/forms/d/e/1FAIpQLSc--nB0dPRxLv_1qEMdjbrFdivaEHrzFSr… <https://docs.google.com/forms/d/e/1FAIpQLSc--nB0dPRxLv_1qEMdjbrFdivaEHrzFSr…>. The seminar announcements and the Zoom links will be sent via this mailing list, but you can also register for the zoom link on our webpage. Please bring the announcement to the attention of other researchers who may be interested. We are looking forward to seeing you at the seminar. Best regards, The organizers Christa Cuchiero, Ruimeng Hu, Sara Svaluto-Ferro, Renyuan Xu

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Webinar in Statistics ANDREA OTTOLINI - 19/3, ore 17
by Pierpaolo De Blasi 12 Mar '21

12 Mar '21

WEBINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 19 Marzo 2021, alle ore 17:00, si terrà il seguente webinar: ------------------------------------------------ Speaker: *Andrea Ottolini (*Standford University, USA) Title: *Gibbs sampling in the analysis of priors for almost exchangeable data* Zoom link: https://us02web.zoom.us/j/83130864007?pwd=Z2dGbHVsWHJMMG9iaTJFb2VMcExqQT09 Meeting ID: 831 3086 4007 Passcode: 222589 Abstract: Consider a population of N individuals divided into d subgroups (e.g., d=4 and people are divided by sex and smoking habits). A sequence of 0-1 valued experiments on the population with outcomes X_1,..., X_n is called partially exchangeable if the only relevant information in the data is the number of 1's in each category. de Finetti's representation result guarantees that the distribution of the X's (for n<<N) is in bijection with measures pi^{(n)} on [0,1]^d. Natural problems -- such as understanding which of the subdivisions are truly meaningful and what is the effect of our initial belief pi^{(0)} -- can be addressed if one knows how to sample efficiently from these measures. In the absence of further information about the experiments, de Finetti suggests starting with a class of priors pi^{(0)}_{C,A} indexed by a d-dimensional network (measuring the relative differences among categories) and a positive parameter A (measuring the belief in complete exchangeability). in this talk I will analyze the performance of Gibbs sampling in approximating these measures in the almost exchangeable regime (A>>1). It will be shown that A^2 steps are necessary and sufficient to mix in a certain Wasserstein distance, with constants depending on few spectral parameters of the network C. This is based on joint work with Gerencsér. ------------------------------------------------ Il webinar è organizzato dalla "de Castro" Statistics Initiative www.carloalberto.org/stats in collaborazione con il Collegio Carlo Alberto e rientra nel Complex Data Modeling Research Network midas.mat.uc.cl/network Cordiali saluti, Pierpaolo De Blasi --- University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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Fwd: Pubblicazione bando RTDb SSD MAT/06
by Lucia Caramellino 12 Mar '21

12 Mar '21

Ricevo ed inoltro. Buona giornata, Lucia +++++++++++++++++++++++++++++++++ Lucia Caramellino Dipartimento di Matematica Università di Roma “Tor Vergata” Web: http://www.mat.uniroma2.it/~caramell > Inizio messaggio inoltrato: > > Da: Filippo Bracci <fbracci(a)mat.uniroma2.it> > Oggetto: Pubblicazione bando RTDb Piano straordinario SSD MAT/06 Rif 1644 > Data: 3 marzo 2021 13:49:19 CET > A: Docenti <docenti(a)mat.uniroma2.it> > > Carissimi, > > è uscito il bando rtdB MAT/06 (con profilo per analisi dati): > > http://web.uniroma2.it/module/name/Content/newlang/italiano/action/showpage… <http://web.uniroma2.it/module/name/Content/newlang/italiano/action/showpage…> > > Scadenza: 01/04/2021 > > Vi prego di darne pubblicità > > grazie > > a presto > > Filippo > -- > ************************ > Prof. Filippo Bracci > Dipartimento di Matematica > Universita' di Roma "Tor Vergata" > Via della Ricerca Scientifica 1 > 00133 Roma - ITALIA > Tel: (+39-)06-7259 4643/4105 > Fax: (+39-)06-7259 4699 > E-mail: fbracci(a)mat.uniroma2.it <mailto:fbracci@mat.uniroma2.it> > Web-page: www.mat.uniroma2.it/~fbracci <http://www.mat.uniroma2.it/~fbracci> > >

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Seminar announcement
by Marco Scarsini 12 Mar '21

12 Mar '21

*Thursday, 18 March, 17:00 CET* *Simina Brânzei**, *Purdue University Searching, Sorting and Cake Cutting in Rounds <http://mailsender.luiss.it/lists/lt.php?id=cRpQAQMFSAUEAQZOVgFdBQs> Discussants: Alexandros Hollender and Argyrios Deligkas The paper can be found here <https://arxiv.org/abs/2012.00738>. This is the link to the Virtual Room <https://luiss.webex.com/webappng/sites/luiss/meeting/download/1e89e3ce671e4…> The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminari/seminari-2021>. If you want to receive announcements of future seminars, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> . ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Corso online del prof. Zegarlinski su "Coercive Inequalities"
by Federico Girotti 12 Mar '21

12 Mar '21

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