-----------------------------------------------------------------------------
A v v i s o d i M i n i - C o r s o
-----------------------------------------------------------------------------
Lunedì, 25 November, ore 10:30-12:00 + 15:00-17:00
Martedì, 26 November, ore 10:30-12:00
-----------------------------------------------------------------------------
Stanza 34
Dipartimento di Scienze Statistiche
Sapienza Università di Roma
CRISTIANO VARIN
(Dep. of Environmental Sciences, …
[View More]Informatics and Statistics, Ca’
Foscari University)
terrà un mini-corso rivolto principalmente (ma non solo) agli studenti
di dottorato dal titolo
ESTENSIONI E MODIFICHE DEL CONCETTO DI VEROSIMIGLIANZA
Tutti gli interessati sono invitati a partecipare.
-----------------------------------------------------------------------------
Questo corso fa parte delle attività promosse nell’ambito del FIRB
Futuro in Ricerca 2012
“Modelli mistura e a variabili latenti per l'inferenza causale e
l'analisi di dati socio-economici”.
Maggiori informazioni sui seminari e mini-corsi presso il DSS sono
consultabili a quest'indirizzo: http://goo.gl/Y6OQYm
Saluti
Pierpaolo Brutti
---
Abstract
A partire da Ronald Fisher, il concetto di funzione di verosimiglianza
ha ricoperto un ruolo fondamentale nell'inferenza statistica. Vi è,
però, una varietà di situazioni in cui il calcolo della funzione di
verosimiglianza non è agevole oppure non è opportuno. In molti modelli
per dati dipendenti la verosimiglianza è onerosa o addirittura
impossibile da calcolare a causa delle presenza di matrici di
covarianza di grandi dimensioni, di costanti di normalizzazione
complesse o di integrali multidimensionali che non possono essere
risolti in forma chiusa. Altre difficoltà nell'utilizzo della funzione
di verosimiglianza provengono dalla presenza di parametri di disturbo
di alta dimensionalità che non permettono una corretta inferenza sui
parametri di interesse o dalla disponibilità di un elevato numero di
potenziali regressori rispetto al numero di osservazioni. Per
risolvere questi e altri problemi, sono state proposte in letteratura
diverse estensioni e modifiche del concetto di verosimiglianza.
L'obiettivo di questo corso è presentare una rassegna di alcune di
queste modifiche, privilegiando le idee e le motivazioni che ne stanno
alla base.
Programma del corso
- Richiami di inferenza di verosimiglianza
- Inferenza di verosimiglianza per modelli mal specificati
- Sovradispersione e quasi-verosimiglianza
- Equazioni di stima generalizzate
- Verosimiglianze composite
- Verosimiglianze penalizzate per la scelta fra modelli
[View Less]
----------------------------------------------------------------------------
-
A v v i s o d i S e m i n a r i o
----------------------------------------------------------------------------
-
Venerdì 22 Novembre, ore 11am
----------------------------------------------------------------------------
-
Stanza 34
Dipartimento di Scienze Statistiche
Sapienza Università di Roma
LAURA SANGALLI
(MOX, Dip. di Matematica, Politecnico di Milano)
terrà un seminario dal titolo
STATISTICAL & …
[View More]NUMERICAL TECHNIQUES
FOR SPATIAL FUNCTIONAL DATA ANALYSIS
----------------------------------------------------------------------------
-
Maggiori informazioni sui seminari presso il DSS sono
consultabili a quest'indirizzo: http://goo.gl/Y6OQYm
Saluti
Pierpaolo Brutti - Fulvio De Santis
---
Summary
I will present a novel class of models for the accurate estimation of
surfaces and spatial fields, that merges advanced statistical methodology
with numerical analysis techniques. Thanks to the combination of
potentialities from these two scientific areas, the proposed class of
models has important advantages with respect to classical techniques used
in spatial data analysis.
The models are able to efficiently deal with data distributed over
irregularly shaped domains, including Riemannian manifold domains, only few
methods existing in literature for this type of data structures. Moreover,
they can incorporate problem-specific priori information about the spatial
structure of the phenomenon under study, with a very flexible modeling of
space variation, allowing naturally for anisotropy and non-stationarity.
The models have a generalized additive framework with a regularizing term
involving a differential quantity of the surface of spatial field to be
estimated. The estimators have good inferential properties; moreover,
thanks to the use of numerical analysis techniques, they are
computationally highly efficient.
The method is illustrated in various applied contexts, including data
coming from eco-dopplers, three-dimensional angiographies and computational
fluid dynamics simulations.
The seminar is based on joint work with Laura Azzimonti, Bree Ettinger,
Fabio Nobile, Simona Perotto, Jim Ramsay, Piercesare Secchi.
This line of research is developed within the FIRB2008 Futuro in Ricerca
research project SNAPLE (http://mox.polimi.it/users/sangalli/firbSNAPLE.html
).
[View Less]
*Avviso Seminario*
La Dott.ssa Alessandra Bianchi (Università di Padova) terrà un seminario
Venerdì 22 Novembre alle ore 11:30 in Aula VII - Dipartimento di Scienze
Fisiche, Informatiche e Matematiche - Edificio Matematica - Via Campi
213/B - Modena.
Titolo del Seminario: "Random Walk in a one-dimensional Levy random
environment"
Abstract: In this talk we introduce a model for a one-dimensional
Levy-Lorentz gas corresponding to a random walk in random environment on
the line. The …
[View More]environment is provided by a renewal point process with
inter-distances having a Levy-type distribution, that can be seen as a set
of randomly arranged static scatterers. We investigate the quenched
behavior of the walk in the case of inter-distances having finite mean but
infinite variance and provide asymptotic results about its distribution
and moments . In particular we show that, contrary to the annealed case,
the quenched behavior of the motion is diffusive.
This is a work in progress with G. Cristadoro, M. Lenci and M. Ligabò.
L'evento è organizzato nell'ambito del progetto FIRB "Processi stocastici
e sistemi di particelle interagenti":
http://www.stochastics.unimore.it/firb/
[View Less]
---------- Forwarded message ----------
Date: Fri, 15 Nov 2013 03:33:47 +0100
From: Nicola Pavoni <nicola.pavoni(a)unibocconi.it>
Reply-To: angela.baldassarre(a)unibocconi.it
To: caramell(a)axp.mat.uniroma2.it
Subject: Bocconi Call for Applications - PhD Economics and Finance 2014/15 -
deadline Jan 31th, 2014
Dear colleague,I would be grateful if you could bring the Bocconi PhD program in
Economics and Finance to the attention of your best undergraduate and master students.The PhD …
[View More]in Economics and Finance at Università Bocconi is a
4-year full-time program designed for highly qualified and motivated students who wish to acquire first rate research skills.This year, up to 15 PhD
fellowships (which cover four years of study) are available for the PhD in Economics and Finance. Applications are due by 31st January
2014.The program is organized within the two curricula of Economics and Finance (students select one curriculum when they apply). By its nature, the
program is multidisciplinary and students have the option to choose from a wide range of electives. Dedicated mentorship and support are offered to students throughout their time at Bocconi. Please attached find the full official call also available at www.unibocconi.eu/admissionphdFor more information about the program, please feel free to contact our Program Assistant at infophd(a)unibocconi.it, or visit our
website www.unibocconi.eu/phdeconomicsfinance.SincerelyNicola PavoniUniversità BocconiDirector of the PhD program in Economics and Finance
--------------------------------------------------------------------------------- PhD School - Università Bocconi Room 1-E3-04 - 1° floor Via
Roentgen, 1 - 20136 Milano (Italia)Tel.+39-02.5836.3367angela.baldassarre(a)unibocconi.it
[View Less]
Ho il piacere di invitarvi al seguente seminario, che si terrà
Martedi' 19 novembre 2013 alle ore 16:00 presso l'aula 1AD100 della
torre Archimede via Trieste 63 Padova.
SPEAKER:
Francesco Morandin
AFFILIATION:
Università di Parma
TITLE:
Anomalous dissipation in a stochastic inviscid shell model of turbulence
ABSTRACT:
Shell models of turbulence are infinite systems of coupled
nonlinear equations with exponentially-growing coefficients. They are
thought to be able to capture some of the …
[View More]statistical properties and
features of three-dimensional turbulence, while presenting a structure
much simpler than Navier-Stokes and Euler equations. We introduce a
stochastic version with multiplicative noise of some of these models
and prove energy dissipation in spite of its formal conservativity.
-------
David Barbato
Università di Padova
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
[View Less]
---------- Forwarded message ----------
From: Pablo Ferrari <pferrari(a)dm.uba.ar>
Date: 2013/11/15
Subject: Post Doctoral Position in Buenos Aires
To:
Dear colleagues,
Applications are invited for a Post-Doctoral position in Probability
and related areas at the Department of Mathematics, University of
Buenos Aires. The position lasts two years and has a monthly stipend
of 8,600 pesos, starting anytime between February and September 2014,
with a minimum commitment of one year. It is …
[View More]possible to extend the
position up to four years if the candidate is under the age of 34.
Please feel free to forward this message to other colleagues and
potential candidates.
Information on the group activities and projects can be found at
http://mate.dm.uba.ar/~probab/
Feel free to get in touch with any member of the group if you are
interested.
Applications should be sent before December 10th, 2013, to
probab(a)dm.uba.ar and should include:
- Curriculum Vitae;
- Research Statement;
- Preprints or arXiv links;
- contact details of three academic referees, including e-addresses.
With our best regards,
Buenos Aires Probability Group
Inés Armendáriz, Pablo A. Ferrari, Pablo Groisman, Matthieu
Jonckheere, Leonardo T. Rolla
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
[View Less]
Cari tutti,
segnalo una "Winter school" che si terra` all'Universita`
di Wuppertal e organizzata congiuntamente con l'Universita`
Luiss.
Per ulteriori informazioni si veda il file allegato.
Cordiali saluti. C.M.
*****************************************************************
WORKSHOP - COLLEGIO CARLO ALBERTO
*****************************************************************
The "de Castro" Statistics Initiative (http://www.carloalberto.org/stats)
is pleased to announce the
3rd CARLO ALBERTO STOCHASTICS WORKSHOP:
ALGEBRAIC STATISTICS II
The workshop aims at presenting some of the latest advances on
Algebraic Statistics, and will be held on January 10-11, 2014
at Collegio Carlo Alberto, …
[View More]Moncalieri.
The schedule will feature two long invited talks by:
Jim SMITH (University of Warwick)
Hugo MARURI-AGUILAR (Queen Mary University of London)
together with contributed talks and posters.
Further details on registration and abstract submission can be
found at the workshop webpage
http://www.carloalberto.org/research/statistics-initiative/events/3rd-carlo…
Best regards,
Matteo Ruggiero
---------
Matteo Ruggiero
University of Torino & Collegio Carlo Alberto
http://web.econ.unito.it/ruggiero
[View Less]
3 Post Doctoral positions in Mathematics Deadline December 8, 2013.
WE APOLOGIZE FOR REPEATED E-MAILS
The International Doctoral School Gran Sasso Science Institute (GSSI)
of the National Institute for Nuclear Physics (INFN) offers 3
postdoctoral research positions.
The annual gross salary is EURO 40K, positions are for two years and
may be extended to a third year.
Candidates must have earned their doctoral degree not earlier than
January 1, 2007. Selected candidates are expected to …
[View More]start their
appointments not later than November 1st, 2014.
Research Topics:
Non linear partial differential equations, kinetic models, fluids and
waves. Stochastic particles systems and macroscopic limits. Continuum
mechanics of solids, fluids and biological matter
On line application forms can be found on the GSSI web portal
http://www.gssi.infn.it.
The call text can be downloaded at
http://www.gssi.infn.it/images/bandi2013/bando_RG.pdf
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
[View Less]