StatMod2020

Statistical Modeling with Applications

November 6-7, 2020        

"Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Bucharest, Romania

PROGRAM

ATTENTION: the times in this program are as per Romanian time zone!

FRIDAY, NOVEMBER 6, 2020

10:00-10:30        Opening Remarks and Welcome

Gabriela MARINOSCHI, director of ISMMA, Romania

Ionut DĂNĂILĂ, director of LMRS, Univ. of Rouen-Normandy, France

Vasile PREDA, co-chair of StatMod2020; ISMMA, Romania

Vlad Stefan BARBU, co-chair of StatMod2020; LMRS, Univ. of Rouen-Normandy, France

SESSION "STATISTICAL METHODS" (1)

Chairman: Valentin PATILEA (ENSAI Rennes & CREST, France)

10:30-10:50        

Cristian PREDA (Univ. of Lille, France & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
One dimensional discrete scan statistics for dependent models and some related problems
joint work with Alexandru AMĂRIOAREI (Univ. of Bucharest, Romania)

10:50-11:10

Steven GOLOVKINE (ENSAI Rennes & CREST, France)  
Multivariate functional data clustering using unsupervised binary tree
joint work with Nicolas KLUTCHNIKOFF (IRMAR, Univ. Rennes 2, France) and Valentin PATILEA (ENSAI Rennes & CREST, France)

11:10-11:30

Raluca VERNIC (Ovidius Univ. of Constanta & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
A neural network approach to prediction from some composite regression models
joint work with Elena PELICAN (Ovidius Univ. of Constanta, Romania)        

11:30-11:50

Yousri SLAOUI (LMA, Univ. of Poitiers-Futuroscope, France)
Functional data prediction and classification

11:50-12:10 BREAK

SESSION "ENTROPY, DIVERGENCE MEASURES AND APPLICATIONS" (1)

Chairman: Alex KARAGRIGORIOU (Univ. of the Aegean, Greece)

12:10-12:30

Thomas GKELSINIS (LMRS, Univ. of Rouen-Normandy, France)
Theoretical aspects and practical implications on measures of weighted information
joint work with Vlad Stefan BARBU (LMRS, Univ. of Rouen-Normandy, France), Alex KARAGRIGORIOU (Univ. of the Aegean, Greece)

12:30-12:50
Sorina-Cezarina SFETCU (Univ. of Bucharest, Romania) 
Ordering properties concerning Tsallis quantile entropy

12:50-13:10

Doru CONSTANTIN (Univ. of Pitești, Romania)
Applications of extended cumulative entropies in image processing
joint work with Costel BĂLCĂU (Univ. of Pitești, Romania), Vasile PREDA ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics & "Costin C. Kiritescu" National Institute of Economic Research & Univ. of Bucharest, Romania)

13:10-14:40 LUNCH

SESSION "DISTRIBUTIONS AND APPLICATIONS"

Chairman: Gheorghiță ZBĂGANU ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

14:40-15:00

Eugen PIRCALABELU (UC Louvain, Institute of Statistics, Biostatistics and Actuarial Sciences, Belgium)
Community detection on probabilistic graphical models with group-based penalties
joint work with Gerda CLAESKENS (KU Leuven, ORSTAT & Leuven Statistics Research Center, Belgium)

15:00-15:20

Luigi-Ionuț CATANA (Univ. of Bucharest, Romania)
Stochastic order of a multivariate uniform distributions family
joint work with Anişoara RĂDUCAN ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics)

15:20-15:40

Gheorghiță ZBĂGANU ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Broken stick models

15:40-16:00 BREAK

SESSION "STOCHASTIC PROCESSES"

Chairman: Ciprian TUDOR (Univ. of Lille, France)

16:00-16:20

Guglielmo D'AMICO (Univ. "G. d’Annunzio" of Chieti-Pescara, Italy)
On the computation of some interval reliability indicators for semi-Markov systems
joint work with Raimondo MANCA (Univ. of Rome, "La Sapienza", Italy), Filippo PETRONI (Marche Polytechnic Univ., Italy), Selvamuthu DHARMARAJA (Indian Institute of Technology Delhi, India)

16:20-16:40

Maria LESHCHINSKAIA (Tomsk State Univ., Russia)
Efficient estimation of non-parametric signals observed with the Levy noises of small intensity
joint work with Evgenii PCHELINTEV (Tomsk State Univ., Russia), Serguei PERGAMENCHTCHIKOV (LMRS, Univ. of Rouen–Normandy, France)

16:40-17:00

Evgenii PCHELINTEV (Tomsk State Univ., Russia)
Improved estimation methods for the conditional Gaussian Ornstein–Uhlenbeck non parametric regression models based on discrete data
joint work with Serguei PERGAMENCHTCHIKOV (LMRS, Univ. of Rouen–Normandy, France), Maria LESHCHINSKAIA (Tomsk State Univ., Russia)

17:00-17:20

Ciprian TUDOR (Univ. of Lille, France)
Parameter identification for the Hermite Ornstein-Uhlenbeck process
joint work with Obayda ASSAAD (Univ. of Lille, France)

17:20-17:40 BREAK

SESSION "STATISTICAL APPLICATIONS" (1)

Chairman: Ionuț BEBU (George Washington Univ., USA)

17:40-18:00

Filippo PETRONI (Marche Polytechnic Univ., Italy)
Actuarial methods for hedging wind power variability
joint work with Guglielmo D'AMICO (Univ. "G. d’Annunzio" of Chieti-Pescara, Italy), Fulvio GISMONDI ("Guglielmo Marconi" Univ., Italy)

18:00-18:20

Mathilde SAUTREUIL (MICS, CentraleSupélec, Univ. Paris-Saclay, France)
Study of neural networks to predict the survival in oncology
joint work with Sarah LEMLER, Paul-Henry COURNÈDE (MICS, CentraleSupélec, Univ. Paris-Saclay, France)

18:20-18:40

Lamia HAMMADI (LabSIPE, ENSA of El Jadida, Morocco)
Hidden Markov models for risk time series in customs supply chain
joint work with Vlad Stefan BARBU (LMRS, Univ. of Rouen–Normandy, France), Eduardo SOUZA DE CURSI (LMN, INSA of Rouen, France)

18:40-19:00

Ionuț BEBU (George Washington Univ., USA)
Statistical considerations in studies with composite outcomes

SATURDAY, NOVEMBER 7, 2020

SESSION "ENTROPY, DIVERGENCE MEASURES AND APPLICATIONS" (2)

Chairman: Romică TRANDAFIR (Technical Univ. of Civil Engineering of Bucharest, Romania)

09:00-09:20

Mihăiță DRĂGAN (Univ. of Bucharest, Romania)
Neural networks classified using Tsallis entropy

STARTING HOUR OF THE SESSION: 09:20

09:20-09:40

Muhammad SHERAZ (Institute of Business Administration Karachi, Pakistan)
Extensive and non-extensive entropy measures with financial applications 
joint work with Vasile PREDA ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics & "Costin C. Kiritescu" National Institute of Economic Research & Univ. of Bucharest, Romania), Silvia DEDU (Bucharest Univ. of Economic Studies, Romania)

09:40-10:00

Romică TRANDAFIR (Technical Univ. of Civil Engineering of Bucharest, Romania)
Estimations of Tsallis and Kaniadakis dynamic cumulative past entropies for power function distribution
joint work with Mihaela PĂUN, Ioana DĂNILĂ, Aurelia CASARU (Univ. of Bucharest, Romania)

10:00-10:20 BREAK

SESSION "STATISTICAL METHODS" (2)

Chairman: Bojana MILOŠEVIĆ (Univ. of Belgrade, Serbia)

10:20-10:40

Serguei PERGAMENCHTCHIKOV (LMRS, Univ. of Rouen–Normandy, France)
Adaptive efficient robust sequential estimation for high dimensional autoregressive models
joint work with Ouerdia ARKOUN (Sup'Biotech & LMRS, Univ. of Rouen–Normandy, France), Jean-Yves BRUA (LMRS, Univ. of Rouen–Normandy, France)

10:40-11:00

Simona COJOCEA (Univ. of Bucharest, Romania)
On the variable selection property of the Lasso method when p >> n

11:00-11:20

Emmanouil-Nektarios KALLIGERIS (Univ. of the Aegean, Greece)
Modeling time-series incidence data via a multiple changepoint approach
joint work with Alex KARAGRIGORIOU (Univ. of the Aegean, Greece), Christina PARPOULA (Panteion Univ. of Social and Political Sciences, Greece)

11:20-11:40

Bogdan BIOLAN (Univ. of Bucharest, Romania)
About iterative approaches for sparse direction-of-arrival estimation for co-prime arrays with off-grid targets

11:40-12:00

Christina PARPOULA (Panteion Univ. of Social and Political Sciences, Greece)

A distribution-free multiple change-point model for Phase I analysis of individual observations
joint work with Alex KARAGRIGORIOU (Univ. of the Aegean, Greece)

12:00-12:20

Bojana MILOŠEVIĆ (Univ. of Belgrade, Serbia)
On characterization based goodness-of-fit tests: a review of recent results

12:20-14:00 LUNCH

SESSION "NUMERICAL SOLUTIONS OF (STOCHASTIC) DIFFERENTIAL EQUATIONS"

Chairman: Denis ENĂCHESCU ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

14:00-14:20

Oana LUPAŞCU STAMATE ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

Numerical approach for stochastic differential equations of fragmentation; application to avalanches

joint work with Lucian BEZNEA (Simion Stoilow Institute of Mathematics of the Romanian Academy & Univ. of Bucharest & Centre Francophone en Mathématiques de Bucarest, Romania), Madalina DEACONU (IECL, Univ. of Lorraine, CNRS & Inria, France)

14:20-14:40

Alexandru AGAPIE (Bucharest Univ. of Economic Studies, Romania)
Evolutionary algorithms on continuous space. Uniform mutation inside the sphere
joint work with Ovidiu SOLOMON (Bucharest Univ. of Economic Studies & Institute of Solid Mechanics, Romania)

14:40-15:00

Denis ENĂCHESCU ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Monte Carlo methods for solving parabolic partial differential equations

15:00-15:20 BREAK

SESSION "FINANCE AND INSURANCE APPLICATIONS"

Chairman: Raluca VERNIC (Ovidius Univ. of Constanta & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

15:20-15:40

Marius RĂDULESCU  ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Single period portfolio selection models with transaction costs and initial holdings
joint work with Constanța Zoie RĂDULESCU (National Institute for Research and Development in Informatics, Romania)

15:40-16:00

Rokas GYLYS (Vilnius Univ., Lithuania)
Modelling uncertainty in human mortality projections using state-space Lee-Carter
joint work with Jonas ŠIAULYS (Vilnius Univ., Lithuania)

16:00-16:20

Bice DI BASILIO (Univ. "G. d’Annunzio" of Chieti-Pescara, Italy)
A semi-Markovian approach to drawdown based measures
joint work with Guglielmo D'AMICO (Univ. "G. d’Annunzio" of Chieti-Pescara, Italy), Filippo PETRONI (Marche Polytechnic Univ., Italy)

16:20-16:40

Elena-Grațiela ROBE-VOINEA (Naval Academy "Mircea cel Bătrân", Constanța, Romania)
Solving actuarial problems with FastCalc V.0.1.

16:40-17:00 BREAK

SESSION "COVID APPLICATIONS"

Chairman: Silvia DEDU (Bucharest University of Economic Studies)

17:00-17:20

Bogdan ALEXE ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics & Univ. of Bucharest, Romania)
Does the lack of supporters affect the home team advantage in football matches? The COVID-19 pandemic case.
joint work with Denis ENACHESCU ("Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

17:20-17:40

Maroua BOUBRED (LSMSA, Univ. Dr. Moulay Tahar of Saïda, Algeria)
Semi-Markov model applied to Algeria Coronavirus data
joint work with Fatiha MOKHTARI (LSMSA, Univ. Dr. Moulay Tahar of Saïda, Algeria)

SESSION "STATISTICAL APPLICATIONS" (2)

Chairman: Aida TOMA (Bucharest Univ. of Economic Studies & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)

17:40-18:00
Andreas MAKRIDES (Univ. of Uclan, Cyprus & Univ. of the Aegean, Greece)
Statistical inference in models with parameter dependence
joint work with Vlad Stefan BARBU (LMRS, Univ. of Rouen-Normandy, France), Alex KARAGRIGORIOU (Univ. of the Aegean, Greece)

18:00-18:20
Chafiàa AYHAR (LSMSA, Univ. Dr. Moulay Tahar of Saïda, Algeria)
Reliability of semi-Markov systems
joint work with Fatiha MOKHTARI (LSMSA, Univ. Dr. Moulay Tahar of Saïda, Algeria), Saâdia RAHMANI (LSMSA, Univ. Dr. Moulay Tahar of Saïda, Algeria), Vlad Stefan BARBU (LMRS, Univ. of Rouen-Normandy, France)

18:20-18:40
Florentina SUTER (Univ. of Bucharest & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Marshall-Olkin type competing risks models and their simulation

18:40-19:00
Aida TOMA (Bucharest Univ. of Economic Studies & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Model selection criteria based on pseudodistances
joint work with Alex KARAGRIGORIOU (Univ. of the Aegean, Greece), Paschalini TRENTOU (Univ. of the Aegean, Greece)

19:00-19:10 BREAK

SESSION "STATISTICAL APPLICATIONS" (3)

19:10-19:30
Silviu Laurențiu VASILE (Univ. of Bucharest & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
Evaluation of interlaboratory comparison results

19:30-19:50
Badreddine BOUMARAF (Univ. of Souk-Ahras, Algeria & Univ. of Badji Mokhtar of Annaba, Algeria & LMRS, Univ. of Rouen-Normandy, France)
Estimation of Beta-Pareto distribution based on several optimization methods
joint work with Nacira SEDDIK-AMEUR (Univ. of Badji Mokhtar of Annaba, Algeria), Vlad Stefan BARBU (LMRS, Univ. of Rouen-Normandy, France)

19:50-20:10
Luiza BĂDIN (Bucharest Univ. of Economic Studies & "Gheorghe Mihoc-Caius Iacob" Institute of Mathematical Statistics and Applied Mathematics, Romania)
An integrative framework for evaluating scientific research
joint work with Silvia DEDU, Anca-Teodora ȘERBAN OPRESCU, Florentin ȘERBAN (Bucharest Univ. of Economic Studies, Romania)

20:10 Closing of the Workshop