Random

random@lists.dm.unipi.it

2 participants
5323 discussions

seminario B. Huang
by Daniela De Canditiis 03 May '16

03 May '16

Lunedì 9 Maggio 2016 alle ore 14:00, presso l’Aula 1B1 dip. SBAI Università La Sapienza di Roma, si terra' il seguente seminario: SPEAKER: Bill Hsin-Hsiung Huang, Ph.D. (Dep. Of Statistics University of Central Florida) TITLE: An Affine-Invariant Bayesian Cluster Process with Split-Merge Gibbs Sampler ABSTRACT: We develop a clustering algorithm which does not requires knowing the number of clusters in advance. Furthermore, our clustering method is rotation-, scale- and translation-invariant coordinatewise. We call it “Affine-invariant Bayesian (AIB) process”. A highly efficient split-merge Gibbs sampling algorithm is proposed. Using the Ewens sampling distribution as prior of the partition and the profile residual likelihoods of the responses under three different covariance matrix structures, we obtain inferences in the form of a posterior distribution on partitions. The proposed split-merge MCMC algorithm successfully and efficiently estimate the partition. Our experimental results indicate that the AIB process outperforms other competing methods. In addition, the proposed algorithm is irreducible and aperiodic, so that the estimate is guaranteed to converge to the posterior distribution. Tutti gli interessati sono invitati a partecipare. Cordiali saluti, Daniela De Canditiis -- Daniela De Canditiis, PhD Istituto per le Applicazioni del Calcolo "M.Picone" (CNR) via dei Taurini, 19 -- 00185 Roma, Italy tel: +39 06 49270942 fax: +39 06 4404306 http://www.iac.rm.cnr.it/~danielad/

1 0

Kolmogorov meets Turing
by Marco Scarsini 29 Apr '16

29 Apr '16

The Kolmogorov meets Turing Workshop on Stochastics, Optimization, Algorithms, and Games will take place on May 18th, 2016 at LUISS, Viale Romania 32, Rome, room 403. https://sites.google.com/site/kolmogorovmeetsturing/ The purpose of KmT is to bring together researchers from Computer Science, Economics, Mathematics and many other fields to present and discuss research on probabilistic methods for the analysis of games, stochastic processes, and randomized algorithms. The workshop is free but we kindly ask you to register for logistic purposes. You can register at https://sites.google.com/site/kolmogorovmeetsturing/iscrizione ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza LUISS Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

1 0

Salzburg Workshop on Dependence Models & Copulas (DMC-Salzburg, Austria)
by Durante Fabrizio 29 Apr '16

29 Apr '16

The Salzburg workshop on Dependence Models and Copulas will take place September 19-22, 2016, in Salzburg (Austria). The workshop features Irène Gijbels (Katholieke Universiteit Leuven, BE) Erich Peter Klement (JKU Linz, AT) Roger B. Nelsen (Lewis & Clark College, Portland, US) Ludger Rüschendorf (Albert-Ludwig-Universität Freiburg, DE) Matthias Scherer (Technische Universität München, DE) as plenary speakers and includes invited sessions organized by Axel Bücher (DE), Elena Di Bernardino (FR), Fabrizio Durante (IT), Maria Rita Iacó (FR), Piotr Jaworski (PL), Ostap Okhrin (DE), and Carlo Sempi (IT) as well as various promising contributed sessions. Aiming to provide a meeting point for researchers working in the field of Dependence Modeling and Copulas the workshop comprises both, contributions with a theoretical focus as well as contributions concentrating on applied aspects. In order to stimulate the discussion of new results, ideas and applications there will be no parallel sessions. Fees are kept at a minimum: 140 € for regular participants, 80 € for PhD Students registering before the end of May (including lunches, coffee breaks and conference dinner). Registration is open already, see www.dmc-salzburg.at/Fees_and_Registration.html<http://www.dmc-salzburg.at/Fees_and_Registration.html> for details - due to an unexpectedly high number of submitted contributions only a limited number of participants not giving a talk can register (first come first serve). All relevant info can be found on the workshop homepage http://www.dmc-salzburg.at We are looking forward to welcome you in Salzburg Fabrizio Durante & Wolfgang Trutschnig

1 0

Seminario VENTURA
by Matteo Ruggiero 28 Apr '16

28 Apr '16

******************************************************************* STATISTICS SEMINARS @ COLLEGIO CARLO ALBERTO ******************************************************************* Venerdi 29 Aprile 2016 alle ore 12:00, presso l’Aula Rossa del Collegio Carlo Alberto, Moncalieri (TO), si terra' il seguente seminario: Laura VENTURA (Università di Padova) ROBUST APPROXIMATE BAYESIAN INFERENCE The likelihood function is the basis of both frequentist and Bayesian methods. However, the stability of likelihood-based procedures requires strict adherence to the model assumptions: mild deviations from the model can lead to misleading inferential results. A possible Bayesian solution to robustness is to use a of robust pseudo likelihood, such as the quasi- and the empirical likelihoods, in the Bayes formula. However, in multiparameter problems the quasi-likelihood is cumbersome, while with small samples the empirical likelihood can be unstable. Moreover, some estimating functions can be difficult to evaluate, which rules out the use of the empirical likelihood and other existing methods (Bayesian bootstrap, Bayesian GMM, etc.). To avoid these drawbacks, in this contribution we focus on posterior distributions from robust unbiased M-estimating functions. These robust posteriors are obtained via Approximate Bayesian Computation (ABC) with the estimating functions used as summary statistics. Theory and examples with robust M-estimating functions are discussed. 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

1 0

Assegno di Ricerca presso la Libera Università di Bolzano
by Durante Fabrizio 28 Apr '16

28 Apr '16

Gent.mi Colleghi, desidero informarvi dell'uscita di un bando della Libera Università di Bolzano per 1 assegno per attività di ricerca sul tema "Nuove Prospettive per i Modelli di Dipendenza" Il Bando è consultabile al seguente link http://www.unibz.it/it/organisation/vacancies/research/assegnidiricerca/def… Scadenza presentazione delle domande: 2 maggio 2016 Cordiali saluti, Fabrizio Durante ***************************************************************** Fabrizio Durante Faculty of Economics and Management Free University of Bozen-Bolzano Piazza Università 1 - Universitätsplatz 1 I-39100 Bozen-Bolzano T: +39 04710 13493 E-mail: Fabrizio.durante(a)unibz.it<mailto:Fabrizio.durante@unibz.it> Web: sites.google.com/site/fbdurante According to the Legislative Decree No. 196/2003, you are hereby informed that this message contains confidential information that is intended only for the use of the addressee. If you are not the addressee, and have received this message by mistake, please delete it and immediately notify us. In any case you may not copy or disseminate this message to anyone. Thank you.

1 0

Seminario (ERC Pascal) Flandoli a Tor Vergata (2 maggio, ore 12)
by Claudio Macci 27 Apr '16

27 Apr '16

Avviso di Seminario. Dipartimento di Matematica dell'Universita` di Roma "Tor Vergata" il giorno 2 maggio 2016, ore 12, in aula Dal Passo il Prof. Franco Flandoli (Universita` di Pisa) terra` un seminario su Alcuni esempi di limite zero-noise per equazioni non ben poste Abstract In questo seminario si studieranno metodi per affrontare equazioni mal poste (cioe` essenzialmente in assenza di unicita`) mediante l'aggiunta di un termine aleatorio che fara` tendere a 0. Dopo una introduzione riguardante il caso di equazioni ordinarie con fenomeno di Peano, si studieranno esempi legati a equazioni alle derivate parziali.

1 0

Seminario Flandoli a Tor Vergata
by Claudio Macci 27 Apr '16

27 Apr '16

Avviso di Seminario. Dipartimento di Matematica dell'Universita` di Roma "Tor Vergata" il giorno 2 maggio 2016, in aula Dal Passo il Prof. Franco Flandoli (Universita` di Pisa) terra` un seminario su Alcuni esempi di limite zero-noise per equazioni non ben poste Abstract In questo seminario si studieranno metodi per affrontare equazioni mal poste (cioe` essenzialmente in assenza di unicita`) mediante l'aggiunta di un termine aleatorio che fara` tendere a 0. Dopo una introduzione riguardante il caso di equazioni ordinarie con fenomeno di Peano, si studieranno esempi legati a equazioni alle derivate parziali. ************************************ Claudio Macci Dipartimento di Matematica Universita` di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italia Tel: +39 0672594728 Fax: +39 0672594699 e-mail: macci(a)mat.uniroma2.it http://www.mat.uniroma2.it/~macci ************************************

1 0

seminario Piotr Jaworski in Bicocca
by Fabio Bellini 26 Apr '16

26 Apr '16

1 0

seminario Yury Kutoyants in Bicocca
by Fabio Bellini 26 Apr '16

26 Apr '16

1 0

Matlab + Advanced Risk and Portfolio Management Bootcamp
by Francesco Cesarone 25 Apr '16

25 Apr '16

Cari Colleghi, vi segnalo una scuola estiva (di alto profilo) in finanza quantitativa, che si terrà dal 15 al 21 Agosto 2016 alla New York University. Di seguito trovate tutte le informazioni sul Bootcamp. Cordialmente, Francesco Cesarone %%%%%%%%%%%%%%%%%%%%%%% Hi Francesco, As every year, ARPM is organizing the *Advanced Risk and Portfolio Management Bootcamp* <http://www.arpm.co/bootcamp/>, an intensive, quantitative 6-day course that will be held on 15-20 August at the New York University. As a past attendee and collaborator of SYMMYS/ARPM, we kindly ask you to help us spread the word by forwarding the present message -where we summarize the key highlight of the course- to your contacts. Moreover, we are trying to expand our partnerships with the universities. If you or any of your contacts would be interested in using the *ARPM Lab* <http://www.arpm.co/lab/> (an interactive educational online platform including theory, case studies, videos, exercises, and interactive Matlab/Python code) for their courses, or in collaborating on research or survey projects related to quantitative risk and portfolio management (directly or through Master’s or PhD students), we would be glad to establish a connection. The ARPM Bootcamp, taught by Dr. Attilio Meucci, has a rich program that is constantly updated and covers: estimation/data mining, factor modeling, risk modeling, portfolio construction, optimization, liquidity and execution, and much more. The program is presented in a unified framework, so that, even while exploring each topic in depth, the big picture is never lost. For the most technical topics, along with rigorous material (all available during and after the course) we use live simulations and exercises to help grasp the intuition. Beside suffering though math and technical lectures, the ARPM Bootcamp is an enriching personal experience. Networking is facilitated during social events. In particular, the Gala dinner provides a rare opportunity to engage in informal, intimate conversations with world-renowned quants. Past guests have included Rob Almgren, Peter Carr, Emanuel Derman, Bruno Dupire, Jim Gatheral, Alex Lipton, Bob Litterman, Bob Litzenberger, Andrew Lo, Fabio Mercurio, Steven Shreve, and more. The course is preceded by a 2 day conference on Python and MATLAB programming for Advanced Risk and Portfolio Management (included in the ARPM Bootcamp fee). After the course a (free) optional exam can be taken to be awarded the ARPM Certificate. We have reduced fees for Students and Academics ($1100 instead of $2100) and further reduced rates for groups (2 x $1000 each, 3 x $950 each, ... down to $750 for groups of 7+) For more information, testimonials and registration, please visit our website: www.arpm.co Thank you for your help! Best regards Zorica *ARPM* <http://www.arpm.co/>* - Advanced Risk and Portfolio Management | **Follow us:* *LinkedIn <https://www.linkedin.com/company/arpm---advanced-risk-and-portfolio-managem…>, Youtube <https://www.youtube.com/channel/UCf5wFT1TJo4EnD6SL0Fh32Q>, **Google+* <https://plus.google.com/u/0/+ARPM-AdvancedRiskPortfolioManagement>*,** Facebook <https://www.facebook.com/ARPM.co>, Twitter <https://twitter.com/ARPM_co>* -- -- Francesco Cesarone - Ph.D. Ricercatore - Assistant Professor Facoltà di Economia Dipartimento di Studi Aziendali Università Roma Tre Via Silvio D'Amico, 77 00145 - Roma tel: +39 06 57335744 Skype: francesco.cesarone email: francesco.cesarone(a)uniroma3.it <francesco.cesarone(a)uniroma1.it> Studio n. 20 piano V WWW: http://host.uniroma3.it/docenti/cesarone/ <http://dipeco.uniroma3.it/docenti.asp?id=164>

1 1

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random