Random September 2016

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32 participants
42 discussions

[iwfos2017] IWFOS 2017: Call for Contributions
by enea giuseppe bongiorno 17 Sep '16

17 Sep '16

Carissimi colleghi, scusandomi per eventuali invii multipli vi inoltro il seguente annuncio di conferenza. Cordialmente, E.Bongiorno ------------------------- *4th International Workshop on Functional and Operatorial Statistics (IWFOS 2017)* *Second Announcement: Call for Contributions* Dear Colleagues, Dear Friends, We are pleased to announce that ********************************************************************************************* *ONLINE REGISTRATION AND SUBMISSION ARE NOW OPEN* ********************************************************************************************* *LOCATION AND DATES: *A Coruña (SPAIN), June 15th - 17th, 2017. *DEADLINE TO SUBMIT SHORT CONTRIBUTIONS: *December 31st, 2016. *WEBSITE: *http://iwfos2017.udc.es *INVITED SPEAKERS:* John ASTON (University of Cambridge, United Kingdom) Alexander AUE (University of California, Davis, USA) Antonio CUEVAS (Universidad Autónoma de Madrid, Spain) Aurore DELAIGLE (University of Melbourne, Australia) Jeff GOLDSMITH (Columbia University, USA) Stephan HUCKEMANN (Institut für Mathemat. Stochastik, Göttingen, Germany) Alicia NIETO-REYES (Universidad de Cantabria, Spain) Victor PANARETOS (École Polytechnique Fédérale de Lausanne, Switzerland) Beatriz PATEIRO (Universidad de Santiago de Compostela, Spain) Laura SANGALLI (Politecnico di Milano, Italy) *CO-CHAIRS:* Ricardo CAO (Universidad de A Coruña, Spain) Philippe VIEU (Institut de Mathématiques de Toulouse, France) Germán ANEIROS (Universidad de A Coruña, Spain) Enea BONGIORNO (Università del Piemonte Orientale, Italy) *PUBLICATIONS:* *Book of Proceedings:* Short versions (6-8 pages in the required format) of the accepted contributions (oral or poster) will be collected in a book published by *Springer* <http://www.springer.com/gp/>. *Special Issues in Scientific Journals*: This meeting will be the starting point for two Special Issues devoted to Functional Data Analysis: one in the *Journal of Multivariate Analysis* <http://www.journals.elsevier.com/journal-of-multivariate-analysis> and one in *Computational Statistics* <http://www.springer.com/statistics/journal/180>. It is worth mentioning that these Special Issues are not only open to the best presentations in IWFOS 2017, but also to any other innovative contributions in the field. *CONTACT:* Germán Aneiros Departamento de Matemáticas Facultad de Informática Campus de Elviña, s/n Universidad de A Coruña 15071 - A Coruña (Spain) e-mail: iwfos2017(a)udc.es More information can be found at http://iwfos2017.udc.es . Thank you for your attention. Hoping to see you in A Coruña, Sincerely Yours, On behalf of the Scientific and Organizing Committees, Ricardo Cao Philippe Vieu Germán Aneiros Enea Bongiorno -- 4th International Workshop on Functional and Operatorial Statistics IWFOS 2017, A Coruña (SPAIN) http://iwfos2017.udc.es

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seminar announcement
by Marco Scarsini 16 Sep '16

16 Sep '16

Thursday 22 September, from 12.00 to 13.00, room 207 viale Romania 32 00197 Rome. Speaker: Frank Riedel (Bielefeld University) Title: Ambiguous Actions in Games Abstract: We propose a framework for normal form games where players can use Knightian uncertainty strategically. In such Ellsberg games, ambiguity–averse players may render their actions objectively ambiguous by using devices such as Ellsberg urns, in addition to the standard mixed strategies. While Nash equilibria remain equilibria in the extended game, there arise new Ellsberg equilibria with distinct outcomes, as we illustrate by negotiation games with three players. We characterize Ellsberg equilibria in two–person games with conflicting interests. These equilibria turn out to be consistent with experimental deviations from Nash equilibrium play. We also discuss extensions to dynamic games and a version of Harsanyi’s purification theorem if time permits. ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza LUISS Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Avviso Seminario: 26 Settembre 2016 - Federico Polito
by Enrica Pirozzi 15 Sep '16

15 Sep '16

LUNEDI 26 Settembre 2016 ore 14:30 nell'aula E del Dipartimento Matematica e Applicazioni, Università di Napoli FEDERICO II, Complesso di Monte Sant'Angelo, Via Cintia, Napoli FEDERICO POLITO (Dipartimento di Matematica, Università di Torino) terrà un seminario dal titolo: PRABHAKAR OPERATORS AND RELATED STOCHASTIC PROCESSES Abstract: Prabhakar operators are convolution-type operator with a Prabhakar function (generalized Mittag-Leffler function) in the kernel. They generalize the classical Riemann-Liouville and Caputo fractional calculus operators and are connected to specific time-changed or subordinated stochastic processes. We discuss the results obtained in several articles and provide examples. -- Enrica Pirozzi Dipartimento di Matematica e Applicazioni Universita' di Napoli FEDERICO II Via Cintia, Monte S.Angelo, 80126, NAPOLI, ITALY Tel. 081 675634 https://www.docenti.unina.it/ENRICA.PIROZZI

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alcune cose divertenti
by Roberto Guenzani 14 Sep '16

14 Sep '16

Saluti! Ho scelto un paio di cosa divertenti per te, mi stanno facendo impazzire! Ti prego di dare un'occhiata <http://lessandra.ajlconsultingltd.com/fom> Cordialmente,Roberto Guenzani

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Avviso Seminario: 20 Settembre 2016 - Giorgio Ferrari
by Gabriele Stabile 13 Sep '16

13 Sep '16

*Martedì 20 Settembre ore 13:00 *presso l'aula di Matematica (Sapienza Università di Roma, Dipartimento MEMOTEF, Via del Castro Laurenziano 9, Roma - Facoltà di Economia, 1° piano) *Giorgio Ferrari* (Center for Mathematical Economics (IMW) Bielefeld University, Germany ) terrà un seminario dal titolo *"Stochastic nonzero-sum games: a new connection between singular control and optimal stopping"* Abstract: In this talk I present a new connection between a class of 2-player nonzero-sum games of optimal stopping and certain 2-player nonzero-sum games of singular control. I show that whenever a Nash equilibrium in the game of stopping is attained by hitting times at two separate boundaries, then such boundaries also trigger a Nash equilibrium in the game of singular control. Moreover a differential link between the players' value functions holds across the two games. An application to a problem of pollution control is finally discussed. The talk is based on a joint work with Tiziano De Angelis (The University of Leeds). Si invitano gli interessati a partecipare Saluti Gabriele Stabile

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Seminario REN
by Matteo Ruggiero 12 Sep '16

12 Sep '16

******************************************************************* STATISTICS SEMINARS @ COLLEGIO CARLO ALBERTO ******************************************************************* Venerdi 16 Settembre 2016 alle ore 12:00, presso l’Aula 5 del Collegio Carlo Alberto, Moncalieri (TO), si terra' il seguente seminario: Boyu REN (Harvard University) A BAYESIAN NONPARAMETRIC MODEL FOR MICROBIOME DATA ANALYSIS We develop a statistical model to analyse microbiome profiling data based on sequencing of genetic fingerprints in 16S ribosomal RNA. The analysis allows us to quantify the uncertainty in ecological ordination and clustering methods commonly applied in microbiome research. In addition, it can be extended into a framework for association studies when sample characteristics are available. The method is based on the estimation of the underlying microbial distribution in experimental samples using a dependent Dirichet Process prior in which dependence is expressed through the combination of low-dimensional latent features and observed sample covariates. This type of model is advantageous for several reasons. First, information is borrowed across samples to estimate underlying microbial distributions. Second, the nonparametric nature of the model avoids the artefacts of truncation and rarefaction techniques. Lastly, the Bayesian framework mitigates the effects of multiple testing for associations between covariates and species abundance and other hypotheses of interest. Tutti gli interessati sono invitati a partecipare. Il seminario e' organizzato dalla "de Castro" Statistics Initiative (http://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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2 years position in dynamical systems, computational ergodic theory, randomness and pseudo-randomness
by Stefano Marmi 12 Sep '16

12 Sep '16

Dear Collegue, I would be grateful if you could bring to the attention of your best postgraduate students and PhD holders that a two years long research position in “Dynamical systems, computational ergodic theory, randomness and pseudo-randomness” is available at the Scuola Normale Superiore in Pisa. PhD students can also apply, provided they obtain their PhD no later than 31st december 2016. *Deadline for application is September 26th 2016.* The annual gross remuneration is around 32,000 Euros, corresponding to a monthly salary of approximately 2,000 Euros. *Full official call can be retrieved at* http://en.sns.it/bando/research-contract-named-%E2%80% 9Cdynamical-systems-computational-ergodic-theory-randomness-and-pseudo Yours sincerely, Stefano Marmi

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MODEL UNCERTAINTY AND ROBUST FINANCE
by Giovanni Puccetti 12 Sep '16

12 Sep '16

ABSTRACT DEADLINE (September 30) APPROACHING FOR MODEL UNCERTAINTY AND ROBUST FINANCE https://sites.google.com/site/2016murf/ <https://sites.google.com/site/2016murf/> University of Milan, 10-11 November 2016 INVITED SPEAKERS: Giorgio DALL'AGLIO (Special historical talk) David HOBSON (University of Warwick) Jan OBLOJ (University of Oxford) Bernt ØKSENDAL (University of Oslo) Halil Mete SONER (ETH Zurich) Steven VANDUFFEL (VRIJE Brussels) FREE REGISTRATION FOR ACCEPTED CONTRIBUTED SPEAKERS

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seminar announcement
by Marco Scarsini 09 Sep '16

09 Sep '16

Thursday 15 September, from 12.00 to 13.00, room 207 viale Romania 32 00197 Rome. Speaker: Panayotis Mertikopoulos (CNRS and LIG, Grenoble, France) Title: Learning in concave games with imperfect information Abstract: This paper examines the convergence properties of a class of learning schemes for concave N-person games - that is, games with convex action spaces and individually concave payoff functions. Specifically, we focus on a family of learning methods where players adjust their actions by taking small steps along their individual payoff gradients and then "mirror" the output back to their feasible action spaces. Assuming players only have access to gradient information that is accurate up to a zero-mean error with bounded variance, we show that when the process converges, its limit is a Nash equilibrium. We also introduce an equilibrium stability notion which we call variational stability (VS), and we show that stable equilibria are locally attracting with high probability whereas globally stable states are globally attracting with probability 1. Additionally, in finite games, we find that dominated strategies become extinct, strict equilibria are locally attracting with high probability, and the long-term average of the process converges to equilibrium in 2-player zero-sum games. Finally, we examine the scheme's convergence speed and we show that if the game admits a strict equilibrium and the players' mirror maps are surjective, then, with high probability, the process converges to equilibrium in a finite number of steps, no matter the level of uncertainty. ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza LUISS Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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Seminario di Giovanni Barone Adesi presso Dipartimento di Informatica, UniVr - 16 Settembre 2016
by Luca di persio 08 Sep '16

08 Sep '16

Con preghiera di diffusione. Seminario del Dipartimento di Informatica venerdì 16 settembre 2016, Sala Verde, ore 15.00 (rinfresco 14.45, inizio seminario 15.00) Giovanni Barone Adesi, Università della Svizzera italiana "WTI Crude oil option implied VaR and CVaR: an empirical application" Abstract In a recent theoretical paper Barone Adesi (2015) shows how to extract the option implied VaR and CVaR. This is the fi rst empirical application of that paper. We extract the 2014-2015 daily option implied VaR and CVaR from the WTI crude oil future prices and the options written on it. Without relying on any distributional assumption we are able to backtest the CVaR values, thus proposing a coherent and elicitable risk measure. From a forecasting viewpoint a ratio of the two risk measures allows us to predict the probability density of jumps in the underlying price, which would have been unpredictable with standard inference methods. Keywords: Option Prices, Risk Measures, Var and Cvar, Elicitability. http://search.usi.ch/people/5be736fa2b7c09db295e1b3747f643b9/Barone-Adesi-G… Contact Person: Luca Di Persio __ Luca Di Persio - PhD assistant professor of Probability and Mathematical Finance Dept. Informatics University of Verona strada le Grazie 15 - 37134 Verona - Italy Dept. Math University of Trento V. Sommarive, 14 - 38123 Povo - Italy Tel : +39 0461 281686

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