March 2015 - Random - Mailing list — Dipartimento di Matematica, UniPI

No Free Lunch Seminar by Dr. Joao da Gama Batista, Fri April 10 1:00 PM Aula Bianchi @ SNS
by Giacomo Bormetti 31 Mar '15

31 Mar '15

Fri April 10 2015, 1:00 PM in Aula Bianchi, Scuola Normale Superiore Pisa Joao da Gama Batista Laboratoire de mathématiques appliquées aux systèmes École Centrale de Paris will deliver the seminar "Sudden trust collapse in networked societies" Abstract: Trust is a collective, self-fulfilling phenomenon that suggests analogies with phase transitions. We introduce a stylized model for the build-up and collapse of trust in networks, which generically displays a first order transition. The basic assumption of our model is that whereas trustworthiness begets trustworthiness, panic also begets panic, in the sense that a small decrease in trustworthiness may be amplified and ultimately lead to a sudden and catastrophic drop of collective trust. We show, using both numerical simulations and mean-field analytic arguments, that there are extended regions of the parameter space where two equilibrium states coexist: a well-connected network where global confidence is high, and a poorly connected network where global confidence is low. In these coexistence regions, spontaneous jumps from the well-connected state to the poorly connected state can occur, corresponding to a sudden collapse of trust that is not caused by any major external catastrophe. In large systems, spontaneous crises are replaced by history dependence: whether the system is found in one state or in the other essentially depends on initial conditions. All interested people are kindly invited. Best, Giacomo -- Giacomo Bormetti Assistant Professor of Financial Mathematics -------------------------- Faculty of Sciences Scuola Normale Superiore Pisa Piazza dei Cavalieri, 7 56126 Pisa - Italy email: giacomo.bormetti(a)sns.it http://mathfinance.sns.it/index.php/people/41-group-members/51-giacomo-borm… phone: +39 050 509248

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missDATA2015 : Last call for early bird registration
by Pierre-Yves Louis 29 Mar '15

29 Mar '15

from Vincent Audigier, *AUDIGIER Vincent,* Applied Mathematic Department, Agrocampus Ouest 65 rue de Saint-Brieuc, 35042 Rennes Cedex, France Tel: (+33)2 23 48 54 76 Website: http://vincentaudigier.weebly.com/ Dear colleagues, The statistic department of Agrocampus and the data mining group of the french statistical society organize the international conference on missing values and matrix completion MissData in Rennes (France) from 18 to 19 June 2015 at Agrocampus Ouest. The conference website is: http://missdata2015.agrocampus-ouest.fr The objective of this conference is to spotlight the latest research in missing values and matrix completion. We aim to bring together theoretical and applied researchers from different fields of application such as in social-science, genetics, medical analysis, survey, collaborative filtering, image reconstruction, etc. The program comprises R tutorials, invited lectures, a lightning talk session and a lively poster session during the reception. Awards will be given to up to three posters. The invited speakers are some of the main contributors on the topic from different fields:*Mouna Akacha* (Novartis, Switzerland), *Christophe Biernaki* (University Lille 1, France),*Stefan van Buuren* (University of Utrecht, the Netherlands),*John W. Graham* (Pennsylvania State University, US),*David Haziza*, (Montreal University, Canada),*Olga Klopp* (Paris Ouest University, France),*Roderick Little* (University of Michigan, US),*Joseph L. Schaefer* (Census Bureau, Washignton, US),*Shaun Seaman* (Medical Research Council Biostatistics Unit, UK),*Pierre Vandergheynst* (EPFL, Switzerland),*Recai Yucel* (University Albany, US). We would be glad to have you as a participant or even better as a contributor Important date: *Early bird registration and poster/lightning talk submission deadline : April 1, 2015* contact email:missdata2015@agrocampus-ouest.fr Vincent Audigier from the committee.

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Second call for papers: CIBB 2015, Naples, September 10-12, 2015
by Paola Rancoita 27 Mar '15

27 Mar '15

============================================================================================================================================== *SECOND CALL FOR PAPERS * *CIBB 2015* *12th International Meeting on Computational Intelligence Methods for Bioinformatics and Biostatistics* *CNR Research Area “Napoli 1”, Naples, Italy** **September 10-12, 2015** * *http://bioinfo.na.iac.cnr.it/cibb2015/** **cibb2015(a)gmail.com* ============================================================================================================================================== *Scope of CIBB 2015* CIBB (Computational Intelligence methods for Bioinformatics and Biostatistics) is a meeting with more than 10-year history. Its main goal is to provide a forum open to researchers from different disciplines to present problems concerning computational techniques in bioinformatics, systems biology and medical informatics, to discuss cutting edge methodologies and accelerate life science discoveries. Following this tradition and roots, this year's meeting will bring together researchers from the international scientific community interested in this field to discuss the advancements and the future perspectives in bioinformatics and biostatistics. Applied biologists are also invited to participate in order to propose novel challenges aimed to have high impact for molecular biology and translational medicine. *Technical areas addressed by CIBB 2015 include, but are not limited to:* High dimensional statistical analysis of omic data; Next generation sequencing bioinformatics; Multi-omic data integration; Methods for supervised and unsupervised learning; Prediction of protein structures; Methods for comparative genomics; Algorithms for molecular evolution and phylogenetic analysis; Mathematical modelling and simulation of biological systems; Systems and synthetic biology; Bio-molecular databases and data mining; Bio-medical text mining and imaging; Statistical methods for the analysis of clinical data; Methods for the visualization of high dimensional complex omic data; Software tools for bioinformatics. *CIBB 2015 is jointly organized by:* • INNS International Neural Network Society SIG Bioinformatics • INNS International Neural Network Society SIG Bio-pattern • IEEE-CIS-BBCT Task forces on Neural Networks and Evolutionary Computation • Istituto per le Applicazioni del Calcolo, “M. Picone”, CNR Napoli The scientific programs of CIBB 2015 will include Keynote Speakers, contributed papers, tutorial and special sessions. The contributed papers will be presented in plenary oral sessions, special sessions, or poster sessions. *Publications* Accepted papers will be published on a flash drive with a specific ISBN number for the conference proceedings. A selection of papers presented at CIBB 2015 will appear in a post-conference monograph. We are in contact with Springer to have them published in the Springer series of Lecture Notes in Bioinformatics (LNBI) as usual for CIBB. Moreover, we are planning to publish the best papers in an extended form in a special issue of an international scientific journal. *Important Dates * Tutorial and Special Session Proposal: April 3, 2015 Paper submission deadline: April 10, 2015 Notification of acceptance: June 12, 2015 Final paper due: July 10, 2015 Conference: September 10-12, 2015 *Tutorials and Special Sessions* *Tutorial proposals* to CIBB, including title, one page long abstract, and short CV of presenters, are due by April 3, 2015. Please send proposals to cibb2015(a)gmail.com. *Special Session proposals* to CIBB, including the session's title and scope, short CV of sessions chairs, preliminary list of at least 4 potential authors are due by April 3, 2015. Proposals of special sessions will be evaluated as soon as they are submitted. A special session must have at least 4 accepted papers. Please send proposals to cibb2015(a)gmail.com *Paper Submission* Papers must be prepared following the guidelines illustrated on the CIBB web site and should be long between 4 and 6 pages. Papers should be submitted in PDF format on the Easy Chair conference system. *Organizing Committee* /General Chairs/ - Claudia Angelini, Istituto per le Applicazioni del Calcolo, Italy - Adriano Decarli, University of Milan, Italy - Erik Bongcam-Rudloff, Swedish University of Agricultural Sciences, Sweden. /Biostatistics Technical Chair/ - Paola MV Rancoita, Vita-Salute San Raffaele University, Italy /Bioinformatics Technical Chair/ - Stefano Rovetta, University of Genova, Italy /Special Session and Tutorial Chairs/ To be communicated /Local Organizing Committee/ Valerio Costa, Institute of Genetics and Biophysics, Italy Italia De Feis, Istituto per le Applicazioni del Calcolo, Italy Angelo Facchiano, Istituto di Scienze dell'Alimentazione, Italy /Publicity Chair/ Francesco Masulli, University of Genova, Italy & Temple University, USA /Publication Chair/ Riccardo Rizzo, Istituto di Calcolo e Reti ad Alte Prestazioni, Italy /Steering Committee/ Pierre Baldi, University of California, Irvine, CA, USA Elia Biganzoli, University of Milan, Italy Alexandru Floares, Oncological Institute Cluj-Napoca, Romania Jon Garibaldi, University of Nottingham, United Kingdom Nikola Kasabov, Auckland University of Technology, New Zealand Francesco Masulli, University of Genova, Italy & Temple University, USA Leif Peterson, TMHRI, Houston, Texas, USA Roberto Tagliaferri, University of Salerno, Italy

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Seminario di Bernardo Nipoti a Pavia
by Carbone Raffaella 26 Mar '15

26 Mar '15

Cari colleghi, vi annuncio che martedì 31 marzo, alle ore 14 precise, nell'aula Beltrami del Dipartimento di Matematica dell'Universita' di Pavia, Bernardo Nipoti (Dipartimento di Economia e Statistica - Università di Torino) terrà un seminario dal titolo Rediscovery of Good-Turing estimators via Bayesian Nonparametrics Sunto: The problem of estimating discovery probabilities originated in the context of statistical ecology, and in recent years it has become popular due to its frequent appearance in challenging applications arising from biology, bioinformatics, genetics, linguistics, etc. A full range of statistical approaches, parametric and nonparametric as well as frequentist and Bayesian, have been proposed for estimating discovery probabilities. We investigate the relationship between the celebrated Good-Turing approach, which is a frequentist nonparametric approach developed in the 1940s, and the Bayesian nonparametric approach recently introduced in the literature. Specifically, under the assumption of a two parameter Poisson-Dirichlet prior, we show that Bayesian nonparametric estimators of discovery probabilities are asymptotically equivalent to suitably smoothed Good-Turing estimators. As a by-product of this result, we present and discuss a methodology for deriving asymptotic credible intervals to be associated to the Bayesian nonparametric estimators of discovery probabilities. Cordiali saluti, Raffaella Carbone -- Raffaella Carbone, PhD Ricercatore di Probabilità e Statistica Matematica Dipartimento di Matematica dell'Università degli Studi di Pavia

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Master of Science in Industrial and Applied Mathematics (MSIAM)
by Ester Mariucci 26 Mar '15

26 Mar '15

Buongiorno, volevo comunicare la creazione del nuovo Master of Science in Industrial and Applied Mathematics (equivalente ad una Laurea Magistrale) a Grenoble: http://msiam.imag.fr/doku.php Per gli studenti interessati, sono disponibili delle borse di studio finanziate dal labex Persyval: https://persyval-lab.org/en/education/call/master-scholarship-academic-year… Cordiali saluti, Ester Mariucci

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Seminario P. Brutti a Tor Vergata - lunedì 30 Marzo
by Claudio Durastanti 26 Mar '15

26 Mar '15

Ciclo di Seminari - Progetto ERC grant PASCAL (Probabilistic and Statistical Techniques for Cosmological Applications) Lunedì 30 marzo ore 14 - Aula Belpasso - Dipartimento di Matematica Università di Roma Tor Vergata Speaker: Pierpaolo Brutti, Università "La Sapienza" - Roma Title: Estimating the Intrinsic Dimension: The Bayesian way Abstract: In this talk I will first review some of the methods proposed for making inference on the intrinsic dimension of point cloud data sampled from a low-dimensional structure embedded in a high–dimensional ambient space, and then I will describe a Bayesian solution based on a composite likelihood built under working independence assumptions suggested by MacKay and Ghahramani. In order to get a posterior with approximately correct asymptotic behavior and curvature, I will consider some options to calibrate this pseudolikelihood and then compare in simulated and real examples a standard MCMC method against a variation of the default Bayesian framework of Ventura et al. (2013) (joint work with Alessandro Lanteri). Cordiali saluti Claudio Durastanti

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seminario all'IMATI-Milano
by Antonella Bodini 26 Mar '15

26 Mar '15

Mercoledi' 1 aprile alle ore 14 presso la sede di Milano dell'IMATI, via Bassini 15, Sala Pentagonale al secondo piano, Valérie Bélanger dell'Universita' HEC Montréal terra' un seminario dal titolo Analysis and development of real-time ambulance fleet management strategies di cui segue il sunto. Tutti gli interessati sono invitati a partecipare. ____________________________ Sunto: Emergency medical services (EMS) evolve in highly random and dynamic contexts. Indeed, the arrival of emergency calls is uncertain and varies throughout the day, forcing decision makers to adapt their decisions in response to observed changes. Two types of decisions are generally considered in real-time: dispatching and relocation. Dispatching decisions consider the selection of which ambulance to send to an emergency call. Relocation decisions consist in relocating available ambulances throughout the day in response to changes in the system state. Given the situation faced by EMS, the analysis and development of real-time management strategies to ensure a good service to the population is clearly of interest. In a first study, several ambulance relocation strategies are compared, and extensive simulation experiments are reported allowing to analyze the performance of these strategies when they face different level of system workload. Results of this study confirm the relevance of simulation methods to support decision-making in EMS stochastic environment. More importantly, they provide researchers and decisions makers with valuable insights on the use of relocation strategies, including the tradeoff between service level and personnel well-being. In a subsequent study, an innovative real-time ambulance fleet management strategy is proposed. New mathematical models and solution approaches are then developed to deal with both relocation and pre-assignment decisions. Preliminary results show that considering explicitly pre-assignment decisions, which are directly related to dispatching decisions, impact location decisions and can help better predict system performances. Cordiali saluti. -- Dott. Antonella Bodini CNR-Istituto di Matematica Applicata e Tecnologie Informatiche Via Bassini 15, 20133 Milano (Italy) tel +39 02 23699524 fax +39 02 23699538 http://www.mi.imati.cnr.it/~anto/

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No Free Lunch Seminar by Dott. Tommaso Colozza, Wed April 1 1:00 PM Aula Mancini @ SNS
by Giacomo Bormetti 26 Mar '15

26 Mar '15

Wed April 1 2015, 1:00 PM in Aula Mancini, Scuola Normale Superiore Pisa Tommaso Colozza Dipartimento di Statistica e Matematica Applicata all'Economia - Università di Pisa will deliver the seminar "Supply of public debt and demand for risk premia: a Minskian approach to credit risk" Abstract: Financial stability of EMU countries is managed by policy makers through several key macroeconomic indicators; the market instead monitors creditworthiness with credit risk premia embedded in sovereign yields. A demand-supply approach solves this duality: in a Minskian framework, positive inelastic shifts in debt-to-GDP ratio due to widespread macro-financial distress may lower risk appetites of lenders and increase risk premia, up to default. Time-variating risk appetites justify statistical relevance of debt-to-gdp variation on yields levels; if conveniently decomposed, debt velocity allows also to imply a default probability measure comparable to standard CDS-implied measures. All interested people are kindly invited. Best, Giacomo -- Giacomo Bormetti Assistant Professor of Financial Mathematics -------------------------- Faculty of Sciences Scuola Normale Superiore Pisa Piazza dei Cavalieri, 7 56126 Pisa - Italy email: giacomo.bormetti(a)sns.it http://mathfinance.sns.it/index.php/people/41-group-members/51-giacomo-borm… phone: +39 050 509248

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Summer School in Computational Econometrics
by Marco LI CALZI 26 Mar '15

26 Mar '15

-------------------------------------------------------------------- Summer School in Computational Econometrics - Programming in MatLab ===================================================================== The XII edition of the Summer School in "Computational Macroeconometrics - Programming in MatLab" will be held at the "Dipartimento di Scienze dell'Economia" of the University of Salento (Lecce, Italy) from July 27 to July 31, 2015. The main aim of this 30 hours course is to provide an introduction to applied macroeconomics and macroeconometrics with MATLAB. Lecturer: Prof. Dr. Ulrich Woitek, Department of Economics, University of Zurich. (deadline for application: 30 June 2015) For details visit: http://www.seec.unisalento.it ----------------------------------------------------------------------

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StaTalk on Biostatistics - final remind
by Francesca Ieva 25 Mar '15

25 Mar '15

Dear all, this is the last call for registrations to the first StaTalk promoted by the young section of Italian Statistical Society (y-SIS), to be held in **Milan (Italy) on April 24th, 2015** *STATALK ON BIOSTATISTICS* https://sites.google.com/site/youngsocietaitalianastatistica/events/statalk… Department of Mathematics "F. Enriques", Università degli Studi di Milano, via Saldini 50, Milano (Italy) All the information, including the program and the sign-up link for the conference, can be found on the conference website. Statalks are a series of one-day workshop aimed at early career statisticians, i.e., master degree students, people carrying out a PhD, post-docs and young researchers. StaTalks are a fantastic opportunity to share knowledge on advanced topics of statistics. The hosting research group will propose tutorials, seminars and interactive round tables on the main fields of research and application it is concerned. Participants can contribute bringing their own experience through presentations, ideas, poster and material to be shared in the debate. Registrations to the first StaTalk are still opened. *No conference fees are due, but registration is mandatory, by April 10th*, using the form available on the website. For further information or any doubt and question, please visit the website https://sites.google.com/site/youngsocietaitalianastatistica/home Best Regards Francesca Ieva -- Francesca Ieva Department of Mathematics Università degli Studi di Milano, via Saldini 50, 20133 Milano web: https://sites.google.com/site/mypagefi mail to: francesca.ieva(a)unimi.it

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