March 2017 - Random - Mailing list — Dipartimento di Matematica, UniPI

Postdoc opportunities in Differential Geometry of Statistical Models
by Luigi Malagò 29 Mar '17

29 Mar '17

Cari colleghi, vi scrivo perché mi sono trasferito da 6 mesi in Romania, a Cluj-Napoca al RIST (www.rist.ro/en.html) un istituto privato no profit dove ho ottenuto un grant di 4 anni co-finanziato dall'Europa, per implementare il progetto di ricerca DeepRiemann "Riemannian Optimization Methods for Deep Learning". Ho diverse posizioni aperte per postdoc, e sto cercando giovani in gamba, con background in matematica (geometria differenziale e ottimizzazione Riemanniana), computer science, statistica, etc etc, per creare un gruppo qui a Cluj che si occuperà di Machine Learning e Ottimizzazione www.luigimalago.it/group.html Gli argomenti del progetto includono: *information geometry (differential geometry applied to statistical manifolds) *manifold optimization and second-order Riemannian optimization *machine learning and deep learning (using Riemannian methods) Vi chiederei gentilmente di inoltrare il messaggio a chi secondo voi potrebbe essere interessato ad una delle posizione Gli annunci sono disponibili alla seguente pagina: www.luigimalago.it/postdocs_th.html www.luigimalago.it/postdocs_dl.html <http://luigimalago.it/postdocs_dl.html> grazie mille, Luigi Malagò

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Bando per un posto da ricercatore a tempo determinato
by Massimo Campanino 29 Mar '17

29 Mar '17

E' stato pubblicato un bando per un posto da ricercatore a tempo determinato - Dipartimento di Matematica dell'Università di Bologna - SSD MAT/06 Scadenza presentazione domande: 27/04/2017. Pubblicato sulla Gazzetta Ufficiale 4° serie speciale n. 24 del 28/03/2017 Il bando è consultabile e scaricabile nei seguenti siti: Sito d'Ateneo: http://www.unibo.it/it/ateneo/concorsi-e-selezioni/bandi-ricercatore-a-temp… Sito Miur http://bandi.miur.it/jobs.php/public/cercaJobs Sito Euraxess (portale europeo): (pubblicazione in corso) http://ec.europa.eu/euraxess/

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Fwd: 10th European Summer School in Financial Mathematics - Second Announcement/Extension of Deadline
by Carlo Sgarra 29 Mar '17

29 Mar '17

I'm forwarding this annoucement for people eventually interested. Kind Regards, Carlo Sgarr*a* This is the second announcement for the *10th European Summer School in Financial Mathematics* *"Rough Volatility and Transaction Costs"* which will be held at TU Dresden in Dresden, Germany from August 28 - September 1, 2017. Mini-courses will be given by Jim Gatheral Johannes Muhle-Karbe Mathieu Rosenbaum Walter Schachermayer More detailed information on the summer school and instructions for application can be found at: https://www.math.tu- dresden.de/euroschoolmathfi17 *The application deadline has been extended to April 30, 2017*. Successful applicants will be sponsored for travel (within Europe) and accommodation. Please bring the announcement to the attention of PhD-students and other researchers who may be interested to attend. Martin Keller-Ressel, for the organizing committee: Bruno Bouchard, Stefano De Marco, Martin Keller-Ressel, Mathieu Rosenbaum, Nizar Touzi (Apologies if you have received this email in duplicate)

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annuncio seminario
by Gustavo Posta 28 Mar '17

28 Mar '17

Seminario di probabilità e statistica matematica Aula di Consiglio, Dipartimento di Matematica Guido Castelnuovo Lunedì 3 aprile, ore 16:00 Mauro Piccioni (Università di Roma La Sapienza) terrà una conferenza dal titolo: How it happened (to me) to meet ? Summary: The function ? was defined by Minkowski with the purpose of mapping quadratic irrationals bijectively onto the rationals of (0,1) (in addition, it maps the rationals onto the dyadic rationals). It has remarkable self-similarity properties and it maps (increasingly) the interval [0,1] into itself, with an almost everywhere vanishing derivative. For this reason it has been named the slippery devil’s staircase (to distinguish it from the Cantor set distribution function, which, not being strictly increasing, is not slippery!). In the talk we will obtain it as the equilibrium law of a random walk on the homogeneous space (H,PSL_2(Z)) where H is the upper half-plane in the complex plane and PSL_2(Z) is the modular group. The random walk walk drifts towards the real line with a limit in law X whose image under the function |x|v|x|^{-1} has distribution function ?. In proving this, the characterization of a ?-distributed random variable Y in term of its continued fraction expansion is also obtained. This is a joint work with Gerard Letac. Tutti gli interessati sono invitati a partecipare. Per informazioni rivolgersi a piccioni(a)mat.uniroma1.it ---------------------------------------------------------------- Gustavo Posta Dipartimento di Matematica Università di Roma "la Sapienza" P.le A. Moro 2, 00185 Roma Italy web: http://www1.mat.uniroma1.it/~posta e-mail: gustavo.posta(a)uniroma1.it phone: +39-06-4991-4969 ------------------------------------------------------------------

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PhD course by Costantinos Kardaras (LSE) in Padova
by Giorgia Callegaro 28 Mar '17

28 Mar '17

Dear all, this is to invite you to the PhD course which will be given next week by Costantinos Kardaras (LSE) at the Mathematics Department of the University of Padova. All the details follow: *Title*: *Growth optimality and recent applications to probability* *Timetable*: - April 3rd, 2017, 16:30 - 18:00 Torre Archimede, Room 2BC/30 - April 4th, 2017, 16:30 - 18:00 Torre Archimede, Room 2BC/30 - April 5th, 2017, 16:30 - 18:00 Torre Archimede, Room 2BC/30 - April 6th, 2017, 16:30 - 18:00 Torre Archimede, Room 2BC/30 - April 7th, 2017, 16:00 - 17:30 Torre Archimede, Room 2BC/30 *Course requirements*: Probability and Stochastic Calculus *SSD*: MAT/06 and SECS-S/06 *Aim*: This course aims at providing an overview on recent developments in the Mathematical Finance research field, having as a central idea in mind the role of the growth optimal portfolio. Course contents: These lectures will touch upon recent developments in the applied probability, and more precisely mathematical finance. The vessel that is used to connect different topics is that of growth optimality, a notion that has proved extremely fruitful. A representative collection of what will be covered are applications in arbitrage theory, constrained optimisation, filtration enlargement, and semimartingale theory. Other areas of application, such as economics, robust optimisation, and even functional analysis, will be also discussed (if time permits). Thanks and have a nice day, Giorgia Callegaro -- Giorgia Callegaro Assistant 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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Cladag2017 - deadline 31 March for paper submission
by Francesca Greselin 27 Mar '17

27 Mar '17

The list of Invited Sessions for the Cladag2017 International Conference <http://www.cladag2017.unimib.it/>, including three exciting Keynote Talks, given by Antony Davison, J. Sunil Rao and Roberto Rocci, are currently available. Researchers interested in *classification, clustering, data analysis, multivariate analysis, computational statistics and their applications *are invited to participate. The conference will take place at the University of Milano-Bicocca in Milan, from 13-15 September. Invited sessions will include: Statistical models for complex extremes Classified Mixed Model Prediction New methods for clustering ordinal data Classification models in economics and business Advances in Classification and Clustering of Complex Data Network Analysis with applications on biological, financial and social networks Advances in Functional data analysis Heterogeneity and new statistical models Advances in Ordinal and Preference Data Advances in Biostatistics Innovative applications of multidimensional scaling and related techniques Latent class analysis Classification and Visualization Advances in Credit Risk Modeling Robust Clustering Designing clinical trials Big data and Design of Experiments Submissions for contributed, as well as invited talks, are currently open <http://www.cladag2017.unimib.it/registration-and-submission/submission/>, with a deadline of *31 March*. Talks can be one any topic related to statistics, data classification and the analysis of data. Submissions for posters are also welcomed. Registration for the conference is open <http://www.cladag2017.unimib.it/registration-and-submission/registration/>, with early booking discounts available until *30 May*. Francesca Greselin Chair of the Organizing Committee

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Seminar announcement, prof A. Cerny - LUISS G. Carli Roma
by Sara 27 Mar '17

27 Mar '17

Dear all, Professor A. Cerny from Cass will be visiting LUISS and on Tuesday April 4, at 12 in Room A410 -- viale Romania he will give the following seminar: *Optimal trade execution under endogenous pressure to liquidate: theory and numerical solutions* We study optimal liquidation of a large trading position in a market with a temporary price impact. We endogenize the pressure to liquidate and hence allow the time horizon of liquidation to be determined endogenously, as part of the optimal strategy. The corresponding HJB equation leads to a severely singular initial value problem whose numerical solution we also study. In contrast to much of the existing literature spreading the liquidation strategy over a longer horizon is not necessarily beneficial to the trader. Joint work with Pavol Brunovský and Ján Komadel, Comenius University Bratislava -- 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/

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Seminario a Firenze 28/3: Statistical inference of supOU and mixed moving average processes, Imma Curato
by Cecilia Mancini 27 Mar '17

27 Mar '17

Nell'ambito del ciclo di seminari del Dipartimento di Scienze per l'Economia e l'Impresa (DISEI) dell'Universita' di Firenze Martedì 28 Marzo 2017 (Edificio D6/Aula Bracco) ore 14.00 Imma Curato (Ulm University) terrà un seminario dal titolo: "Statistical inference of supOU and mixed moving average processes" ----- Tutti gli interessati sono cordialmente invitati a partecipare. La lista dei seminari Disei è raggiungibile al seguente indirizzo: http://www.disei.unifi.it/vp-104-seminari.html

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PhD in Economics, Ca' Foscari University of Venice - Call for application 2017-18
by Antonella Basso 22 Mar '17

22 Mar '17

Dear Colleague, I would be grateful if you could bring to the attention of your best students the new edition 2017-2018 of the PhD Program in Economics offered by the Ca' Foscari University of Venice. The PhD Program in Economics aims at training selected students for a career as economists in academic institutions or in research departments of national and international organizations, public institutions, private corporations, central banks, financial institutions. Here <http://www.unive.it/pag/fileadmin/user_upload/scuole/graduate/documenti/201…> you can find the first placement of last years' PhDs. The considerable diversification of research areas covered by the members of Department of Economics and their international reputation provide an excellent environment where students of most fields in economics can find research ideas and tight guidance for their doctoral studies. The PhD program has a duration of _four years.__ ___ For the academic year 2017-2018, 5 positions are available, all of them come with a scholarship (around 13,700 € per year). Deadline for application is *April 27th* 2017, 13h00 (Italian time). Information and application procedure can be found at http://www.unive.it/phdapplication <http://www.unive.it/phdapplication> Information on the PhD in Economics can be found at http://www.unive.it/phdeconomics <http://www.unive.it/phdeconomics> Any questions on the program may be addressed to sse(a)unive.it <mailto:sse@unive.it> I also attach to this email a flyer I would be grateful if you could print and post in your department. Finally, two ExSIDE doctoral position based in Venice are still open. ExSIDE is an innovative training program that will give successful applicants a double/joint PhD degree from two universities. Project n. 2 deals with experimental economics in broad sense; project n. 15 will develop agent-based models of tax evasion. Further details can be found at http://exside-itn.eu/ . Successful candidates will get a generous scholarship (the gross monthly wage is above 3000€). Thank you for your cooperation Best regards Antonella Basso -- Antonella Basso Prorettore alla Programmazione e Valutazione - Prorector at Planning and Valuation Dipartimento di Economia Università Ca' Foscari Venezia Fondamenta S. Giobbe - Cannaregio 873 30121 Venezia - Italy Tel. +39-041-2346914 E-mail address: basso(a)unive.it Web page: http://www.unive.it/data/persone/5591751

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Politecnico di Milano - Seminario Eva Fiserova e Karel Hron
by Laura M. Sangalli 21 Mar '17

21 Mar '17

Si avvisa che in data 06-04-2017, alle ore 14:00 precise, presso l'Aula Seminari "F. Saleri" VI piano - Dipartimento di Matematica, Politecnico di Milano, nell'ambito delle iniziative MOX, si svolgerà il seguente seminario: Relatori: Eva Fiserova e Karel Hron, Palacky University, Olomouc, Czech Republic Titolo: Regression analysis for compositional data from perspective of the logratio approach Sommario: Regression analysis is an important tool for analysing the relationships between the response variable and known explanatory variables. When the response variables or explanatory variables are compositional, i.e. multivariate observations carrying only relative information (proportions, percentages), a special treatment in regression is necessary. Compositional data are characterized by the simplex sample space with the Aitchison geometry that forms the Euclidean structure. Proper statistical methodology for this kind of observations is the logratio methodology that enables to express the data isometrically in the real Euclidean space where it is possible to apply standard statistical tools (Aitchison, 1986; Pawlowsky-Glahn et al., 2015). The lecture is focused on three main regression tasks, where compositional data are involved: either regression with a compositional response variable, or regression with compositional explanatory variables, or regression between parts of a composition. The main methodological approach for dealing with compositional regression is based on orthonormal logratio coordinates. Although regression models in orthonormal logratio coordinates are theoretically well justified, both the normalizing constants to reach orthonormality and the natural logarithm itself result in quite a complex interpretation of the regression parameters. In the lecture, we will present new orthogonal logratio coordinates (Muller et al., 2017) in order to achieve better interpretability of regression parameters while preserving all important features of regression models for compositional data. Theoretical results will be applied to real-world examples. Docente di riferimento: Alessandra Menafoglio, alessandra.menafoglio(a)polimi.it Tutti gli interessati sono invitati a partecipare. Cordiali saluti, Laura Sangalli -- Laura Maria Sangalli MOX - Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano - Italy tel: +39 02 2399 4554 fax: +39 02 2399 4568 email: laura.sangalli(a)polimi.it url: http://mox.polimi.it/~sangalli

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