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Young Researchers Day

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The Young Researchers Day takes place twice a year on the first Friday of the semester

At the YRD the doctoral students of our Institute give talks on the topics of their current research.

September 26, 2025, C115

9:00 - Leon Rofagha 
“A discrimination measure under coarsening”

9:30 - Charlotte Jamotton 
“A multi-criteria fair Gaussian regressor for insurance premium”

10:00 - Guillaume Deside 
“Errors-in-Variables Bayesian Model of Glycemic Response to Lifestyle Factors”

10:45 - Mirco Lescart 
"A flexible sub-asymptotic model for threshold exceedances"

11:15 - Kamal Gasser  
“Heatwave attribution over Europe”

11:45 - Edouard Motte 
“Signature methods in mathematical finance”


February 7, 2025, C115

9h00 : Lara WAUTIER 
Dynamic graphical models for high-dimensional financial time series

 9h25 : Madeline VAST + Laura SYMUL (Team Presentation) 
Unsupervised integration of longitudinal multi-omics data

10h40 : Mathilde FOULON 
Multimodal mixture regression on censored data with a cure fraction.

11h05 : Hugo BRUNET + Eugen PIRCALABELU (Team Presentation) 
Functional additive regression on imperfectly observed data with error in covariates


September 20, 2024, C115

09:05 - 09:25 : Anas Mourahib
Title: Statistics of Extremes

09:25 - 09:50 : Stephane Lhaut
Title: Testing parametric models for the angular measure for bivariate extremes

09:50 - 10:15 : Benjamin Deketelaere
Title: Quantile Regression with a Censored Covariate

10:40 - 11:15 : Patricia Ortega-Jiménez
Title: Comparisons of VaR and CoVaR in terms of the value of the conditional variable.

11:15 - 11:40 : Oussama Belhouari
Title: The Three-step method in a dynamic setting

11:40 - 12:15 : Luc Boone
Title: Application of inverse probability of censoring weighting (IPCW) in open-label cancer clinical trials with centrally reviewed endpoints: Illustrating and extending the methodology

 

February 9, 2024, C115

09:05 - 09:30 : Morine DELHELLE
"Copula based dependent censoring in cure models"

09:30 - 09:55 : Jean-loup DUPRET
"A Subdiffusive Stochastic Volatility Jump Model"

09:55 - 10:20 : Hugues ANNOYE
"Generating administrative data bases with Wasserstein GAN"

10:45 - 11:10 : Lise LEONARD
"High-dimensional regression : Model averaging and inference"

11:10 -  11:35 : Hortense DOMS
"Bayesian joint model for longitudinal HR-QOL and time-to-event outcomes" 

11:35 - 12:00 : Aigerim ZHUMAN
"Speeding up Monte Carlo Integration : Control Neighbors for Optimal Conver-gence"

 

February 17, 2023, C115

09:10 – 09:40: Fanny Hoogstoel
“Right to be forgotten”: how to estimate excess risk mortality when no disease-specific registry data are available

09:40 – 10:30: Oskar Laverny
Version control for academics

11:00 – 11:30: Keivan Diakité
Longevity heterogeneity correction and demographic risk sharing in public pension systems

11:30 – 12:00: Jeongjin Lee
Partial Tail Correlations for Extremes

12 :00 – 12:30: Patricia Ortega Jimenez
Efron’s monotonicity under given copula structures

>Program


September 23, 2022, C115

09:05 – 09:50 : Pierre Devolder & Oussama Belhouari
"Multi-step valuation methods for hybrid life insurance products in a stochastic interest rate framework"

09:50 – 10:20 : Ensiyeh Nezakati
"Distributed estimation of Covariate-adjusted Gaussian graphical models"

10:50 – 11:20 : Aigerim Zhuman
"Combination of Control Variates and Adaptive Importance Sampling"

11:20 – 11:50 : Stephan Lhaut
"Uniform concentration bounds for frequencies of rare events"      

11:50 – 12:20 : Anas Mourahib
"Sparse multivariate Generalized Pareto distributions"

 

February 4, 2022, SCIENCES 03

9h00 – 9h30: Vanessa Hanna
"Correlated stochastic mortality and interest rates: A pricing approach applied to the mixed contract"

9h30 – 10h00: Alexandre Jacquemain
"Parallel computing with R using the CECI clusters"

10h00 – 10h30: Hortense Doms
"Flexible joint models for time-to-event and non-Gaussian longitudinal outcome"

11h00 - 11h30: Shuang Hu
"Modelling multivariate extreme value distributions via markov tree"

11h30 - 12h00: Linqi Wang
"Dynamic portfolio selection with sector-specific regularization"

12h00 - 12h30: Stefka Kirilova Asenova
"Linear graphical models with heavy tail factors on trees of transitive tournaments"
 

September 17, 2021, Agora 14

9:00 – 9:30 Antoine Soetewey
«Years of life lost applied to insurance contracts with finite horizon for cancer patients»

9:30 – 10:00 Jean-Loup Dupret
«Impact of rough stochastic volatility models on longterm life insurance pricing»

10:00 – 10:30 Chikêola Ladekpo
«Outliers detection in meta-analysis of clinical trials»

11:00 - 11:45 Team presentation
Morine Delhelle & Ingrid Van Keilegom «Dependent censoring in cure models»

11:45 - 12:15 Charles Guy Njike Leunga
«Valuation of annuity guarantees under a self-exciting switching jump model»

12:15 - 12:45 Benjamin Deketelaere
«Quantile regression for Interval-Censored data using an Enriched Laplace Distribution»

>Program


February 5, 2021, Teams

9h00 – 9h30: Sophie Mathieu
"Nonparametric monitoring of sunspot number observations "

9h30 – 10h00: John-John Ketelbuters
"Credit Default Swap (CDS) pricing with Fractional Hawkes processes "

10h00 – 10h30: Emmanuel Niyigena
"A differential network approach using joint graphical lasso" 

10h45 - 11h30: Mickaël De Backer et Catherine Legrand
"A Regression Model for the Net Bene fit "

11h30 - 12h00: Hugues Annoye
"Statistical Matching based on KCCA, Super Organizing Maps and Autoencoders-CCA" 

12h00 - 12h30: Keivan Diakite 
"Progressive Pension:  Addressing life expectancy inequalities" 

 

September 25, 2020, BARB93

9h00: Vanessa Hanna
"Financing of occupational pensions under low interest rates"

9h30: Alexandre Jacquemain
"Penalized bootstrap Lorenz regression"

10h30: Ensiyeh Nezakati Rezazadeh
"Distributed high-dimensional estimation for precision matrices"

11h00: Leandro Garcia Barrado
"Enrichment of interim analyses USing Efficacy Biomarkers (EUSEBio)"

11h30: Peter Hieber and Pierre Devolder
"Valuation of Hybrid Financial and Actuarial Products in Life Insurance by a Novel Three-Step Method"
 

February 14, 2020, C115

9h00: Rebecca Marion
"AdaCLV for Interpretable Variable Clustering and Dimension Reduction of Spectroscopic Data"

9h30: Peter Hieber
"Optimal retirement products under subjective mortality beliefs"

10h45: Team presentation Christian Hafner and Linqi Wang
"A dynamic conditional score model for the log correlation matrix"

11h15: Hassana Al-Hassan
"Risk Sharing for Public Pension Scheme (PAYG), Using Belgium Demography as a Case Study"

11h45: Daniel Rademacher
"Normality of Estimators for the Spectral Mean Operator"
 

September 20, 2019, C115

09h15 : Hélène Morsomme
"Public pension schemes – intergenerational risk sharing"

09h45 : Kassu Mehari Beyene
"Smoothed Time-dependent ROC Curve for Right Censored Survival Data"

10h45 : Jonas Striaukas
"Machine Learning for Mixed Frequency Data"

11h15 : Team presentation Johan Segers and Stefka Kirilova Asenova
"Tail dependence in a Hüsler-Reiss Markov tree"

> Abstracts


February 15, 2019, C115

09h00 : Sophie Mathieu
"Uncertainty Quantification in Sunspot Counts"

09h30 : Nathalie Lucas
"Experience rating in health insurance using a Hidden Markov Model"

10h00 : Oswaldo Gressani
"Bayesian P-splines and Laplace's method for inference in generalized additive models"

11h00 : Michel Thiel
"Comparison of chemometrics methods for the spectroscopic monitoring of active pharmaceutical ingredients in chemical reactions"

11h30 : Florian Pechon
"Multivariate Claim Frequencies in Motor Insurance using Household Data"

12h00 : Charles-Guy Njike Leunga
"Risk management of interest rate derivatives in presence of interbank risk"

>Program

September 28, 2018, C115

09h00 : Gilles Mordant
"Distribution comparison tests based on self-similar transport of measure"
 
09h30 : Alexandre Jacquemain
"Lorenz regression"
 
10h00 : Pr Eugen Pircalabelu
 
11h00 : Antoine Soetewey
"Life and Health Actuarial Pricing: a Biostatistics Approach"
 
11h30 : John John Ketelbuters
 "Time consistent actuarial valuation of credit risk"
 
12h00 : Fadoua Zeddouk
"Pricing of longevity derivatives and cost of capital"

>Program

9 march, 2018, C115

09h00 : Pauline Ngugnie Diffouo
"Static risk measure of life annuity products"
 
09h25 : Manon Martin
“Combining ASCA and mixed models to analyse high dimensional designed data”
 
09h50 : Vincent Bremhorst
“Inclusion of time-varying covariates in cure survival models with an application in fertility studies”

10h40 : Joris Chau
“2D Wavelet regression for surfaces of Hermitian positive definite matrices”
 
11h05 : Nicolas Tavernier, KUL
"Simple nonlinear shrinkage estimators for large-dimensional covariance matrices”
 
11h30 : Xavier Piulachs
“Joint Models for Longitudinal and Time-to-Event Data with Applications to Health Insurance”

Program

29 September, 2017, C115

9h00 : Rebecca Marion
“Model Regularization for the Selection of Variable Groups in Omics Data”
 
9h30 : Kassu Mehari Beyene
“Time-dependent ROC curve estimation with curve fraction”
 
10h00 : Lexuri Fernandez
“Mortality modelling with Lévy processes and jumps”
 
11h00 : Stefka Asenova
“Graphical models and extremes”
 
11h30 : Dimitra Kyriakopoulou
“Exponential-type GARCH models with linear-in-variance risk premium”
 
12h00 : Hervé Azabou
“Accelerated Failure Time Model with smoothed error distribution and one censored covariate using EM algorithm"

>Program

17 February, 2017, C115

09h00 : Hélène Morsomme
"Stochastic optimal control of public pension schemes"

09h30 : Yue Zhao
"Inference for elliptical copula multivariate response regression models"

10h00 : Michel Thiel
"Development of modern chemometrics methods for the spectroscopic monitoring of active pharmaceutical ingredients in chemical reactions"
 
11h00 : Michaël De Backer
"An Adapted Loss Function for Censored Quantile Regression"

11h25 : Sébastien de Valeriola
"Minimum Protection in DC Funding Pension Plans and Margrabe Options"

23 september, 2016, C115

09h00 : Nathalie Lucas
"Actuarial models for health and disability insurance"

09h25 : Florian Pechon
"Multiline dynamic P&C insurance loss models"

10h45 : Nicolas Asin
"Non-parametric instrumental regression: Adaptive estimation in presence of dependence"

11h15 : Oswaldo Gressani
"Approximate Bayesian methods in cure survival models: Coupling P-splines with Laplace approximations for fast inference"

11h40 : Cheikh Ndour
"Multiblock Redundancy Analysis : Application to dataset from an adjuvanted vaccine"

12h10 : Gauthier Dierieckx
"On the Darling-Erdös Theorem"

> Program


5 February, 2016, C115

09h00 : Hervé Azobou Anantia
"Accelerated Failure Time Model with one covariate subject to random right censoring"

09h35 : Joris Chau and Rainer von Sachs
"Mixed-effects modelling meets spectral analysis of time series"

10h55 : Samuel Maistre
"Spline backfitted kernel estimation of an additive model for censored data"

11h30 : Josefine Hinkelmann
"More Negative Expectation Dependence: Key Properties and Hypothesis Testing"

> Program


18 September, 2015, C115

09h00 : Benjamin Colling
"Goodness-of-fit tests in semiparametric transformation models using the integrated regression function"

09h30 : Baptiste Féraud, Bernadette Govaerts and Manon Martin
"Metabolomics studies in disease diagnostic and prevention. Where and how can statisticians help?"

10h45 : Mickaël De Backer
"Copula Quantile Regression with Censored Data"

11h15 :  Johan Segers, Michal Warchol and Yuwei Zhao
"Modelling serial extremal dependence with tail processes"

>Program



6 February, 2015, C115

09h00 -  9h30Anna Kiriliouk and Johan  Segers          Nonparametric estimation of extremal dependence       
09h30 - 10h00Samuel GbariStochastic approximations in mortality projection models
10h00 - 10h20Nicolas Asin  Adaptive nonparametric estimation in the presence of dependence
11h00 - 11h30Jennifer Alonso GarciaGuarantee valuation in Notional Defined Contribution pension systems
11h30 - 12h00Nathan UyttendaeleNested Archimedean Copulas: A Short Research Story
12h00 - 12h20Gildas MazoConstruction and estimation of highdimensional copulas

>Program
 

19 September, 2014, C115

09h00 -  9h30Manuela Braione                Forecasting comparison of Long Term component dynamic models for Realized Covariance Matrices          
09h30 - 10h00Maïlis AmicoMixture cure model estimation with a singleindex structure
10h00 - 10h20Adrien Lebègue     Iterated VaR or CTE Measures: a False Good Idea?
11h00 - 11h30Aurélie BertrandBias correction using the SIMEX algorithm in the promotion time cure model with measurement error
11h30 - 12h00Vincent BremhorstFlexible models for cure interval-censored data
12h00 - 12h20Baptiste FeraudStatistical treatment of 2D-NMR COSY spectra: clustering-based repeatability evaluation and comparison with 1H-NMR in terms of Metabolomic Informative Content

>Program
 

31 January, 2014, C115

09h00 -  9h30Nicolas Asin                Local Likelihood and Transformation Models in Survival Analysis              
09h30 - 10h00Sylvie Scolas  Accelerated Failure time model with interval censored data and cure
10h00 - 10h20Fabian Bocart      Applied statistics and research
11h00 - 11h30Anne BenoitTaking into Account Strains Heterogeneity in the Estimation of Vaccine Efficacy Against Seasonal Influenza
11h30 - 12h00Cedric TaverneExtended Beta Regressions for (Inflated) Discrete Scales
12h00 - 12h20Marco MundaModelling spatio–temporal variation in malaria incidence with the spatial frailty model

>Program
 

20 September, 2013, C115

09h00 -  9h30Majda Talamakrouni              Parametrically guided nonparametric density and hazard functions estimation with censored data
09h30 - 10h00Daniel Koch  An extension of the locally stationary wavelet processes
10h00 - 10h20Anna Kiriliouk      An M-estimator for tail dependence in spatial extremes
11h00 - 11h30Jennifer Alonso GarciaRisk and Solvency of a Notional Defined Contribution public pension scheme
11h30 - 12h00Rudolf SchenkAdaptive Bayesian estimation in Gaussian sequence space models
12h00 - 12h20Michał WarchołStatistics for tail processes of heavy–tailed Markov chains

>Program
 

1 February 2013, C115

9h00 -  9h30Nathan UyttendaeleNonparametric reconstruction of the tree structure of a nested archimedean copula
9h30 - 10h00Benjamin CollingGoodnest of fit tests in semiparametric transformation models
10h00 - 10h20Aurélie Bertrand                The Simex method for correcting the bias in a survival cure model with mismeasured covariates
11h00 - 11h30Vincent BremhorstEstimation of the latent distribution in cure survival models using a flexible Cox Model
11h30 - 12h00George BabajanMathematical finance applied to gas and power derivatives
12h00 - 12h20Aleksandar SujicaThe copula-graphic estimator in censored nonparametric location-scale regression models

>Program
 

3 February 2012, C115

 9h00 -  9h30Anne BenoitChallenges in assessing efficacy of seasonal influenza
vaccine
 
 9h30 - 10h00Jonathan JaegerBayesian ODE-penalized B-spline model with Gaussian mixture as error distribution 
10h00 - 10h20Catherine Timmermans    Perspectives on Bagidis for image processing 
11h00 - 11h30George BabajanStochastic modeling of gaz and electricity derivatives markets 
11h30 - 12h00Habiba TassaPension valuation and solvency 
12h00 - 12h20Aleksandar SujicaThe copula-graphic estimator in censored nonparametric location-scale regression models 

> Program
 

23 September 2011, C115

 9h00 -  9h30Daniel KochLarge Portfolio Optimization by Wavelet Thresholding
 9h30 - 10h00Federico RotoloA Copula-Based Simulation Method for Clustered Multi-State Survival Data
10h00 - 10h20Fabian Bocart                   The Puzzling Volatility of Art Prices
11h00 - 11h30Cédric TaverneA Model Based on the Beta Distribution to Deal with Rating Scales
11h30 - 12h00Marco MundaAdjusting for centre effects in the analysis of survival data from multicentre clinical trials
12h00 - 12h20Bernard FrancqHow to Accept the Equivalence of Two Measurement Methods? Comparison and Improvements of the Bland and Altman's Approach and Errors-in-Variables Regression

>Program
 

4 February 2011, C115

 9h00 -  9h30Majda TalamakrouniGuided censored regression
 9h30 - 10h00Rachida El MehdiStochastic Frontier Analysis With Copulas
10h00 - 10h20Rudolf SchenkAdaptive local functional regression
11h00 - 11h30Mathieu PigeonIndividual stochastic loss reserving: model and preliminary results
11h30 - 12h00Mohammed Rida SoumaliDetecting influential data in partially linear models
12h00 - 12h20Catherine TimmermansBases Giving Distances. A new semimetric and its use for nonparametric functional data analysis

>Program
 

24 September 2010, C115

 9h00 -  9h30Jonathan JaegerBayesian (hierarchical) smoothing methods for solving systems of
differential equations
 9h30 - 10h00Ingrid HaffPair-copula constructions of multiple dependence
10h00 - 10h20Louis BoulangerModeling Extremal Dependence: Application to CDOs pricing
11h00 - 11h30Diane PierretMultivariate volatility modelling of electricity futures
11h30 - 12h00Boris DemeshevGuided local linear regression
12h00 - 12h20Majda TalamakrouniGuided censored regression

>Program

 

5 February 2010, C115

 9h00 - 9h30Olga ReznikovaTime-varying copulas: a survey
 9h30 - 10h00Cédric TaverneHow to Reinforce the Stated Preference Methods Using the Potential of Computer Based Questionnaires?
10h00 - 10h30Fabian BocartStatistical challenges in the art market
11h00 - 11h30Julien HuntTopics on semi-Markov processes and their applications
11h30 - 12h00Jean-Marc FreyermuthTree-Structured Wavelets in Nonparametric Regression
12h00 - 12h30Gordon GudendorfExtreme-Value Copulas

>Program 
 

25 September 2009, C115

 9h00 - 9h30Catherine TimmermansThe BAGIDIS method, a new way for measuring distances between curves with sharp variations
 9h30 - 10h00Thomas MeinguetHeavy tailed linear functional processes
10h00 - 10h30Mathieu PigeonIndividual Claim Loss Reserving
11h00 - 11h30Bernard FrancqDevelopment of statistical tools to test the equivalence between two measurement methods
11h30 - 12h00Maik SchwarzAdaptive circular deconvolution by model selection under unknown error distribution
12h00 - 12h30Mohammed Rida SoumaliThe influence function of the LS estimator for the regression parameter under a semiparametric partially linear model

>Program
 

30 January 2009, C045

 9h30 - 10h00Olga ReznikovaEfficient estimation of a semiparametric dynamic copula model
10h00 - 10h20Gordon GudendorfNonparametric Estimation of Extreme Value Copulas in Arbitrary Dimensions
10h20 - 10h40Aleksandar SujicaThe copula-graphic estimator in censored nonparametric location-scale regression models
11h20 - 11h40Jonathan JaegerFunctional estimation in systems defined by differential equations using Bayesian smoothing methods
11h40 - 12h10Julien HuntSemi-Markov switching interest rate models
12h10 - 12h30Rachida El MehdiStochastic Frontier Analysis of the Efficiency of Moroccan Municipalities

>Program
 

26 September  2008

 9h00 - 9h30Jean-Marc FreyermuthTree-structured wavelet estimators : theory and applications
 9h30 - 10h00Catherine TimmermansUsing unbalanced Haar wavelets for classification of time series
10h00 - 10h30Maik SchwarzHow can boundary points and noise level be estimated in deconvolution problems?
11h00 - 11h30Olga ReznikovaEfficient estimation of a semiparametric dynamic copula model
11h30 - 12h00Bernard FrancqDevelopment of statistical tools to test the equivalence between two measurement methods
12h00 - 12h30Julien TrufinRuin problems in presence of underwriting cycles

> Program
 

1 February 2008, C115

 9h00 - 9h30Bianca TeodorescuGoodness-of-fit tests for conditional models with time-dependent coefficients under censoring and truncation
 9h30 - 10h00Rachida El MehdiEfficiency Analysis: application to financing of municipalities in Morocco
10h00 - 10h30Réjane RousseauCombination of Independent Component Analysis and modelisations for the identification of metabonomic biomarker in 1H-NMR spectroscopy
11h00 - 11h30Gery GeenensNon- and semiparametric tests for conditional independence in two-way contingency tables
11h30 - 12h00Aurélie MillerThe financing of first pillar pension
12h00 - 12h30Julien HuntOptions and semi-Markov regime-switching

>Program
 

21 September  2007, C045

 9h00 - 9h30Olga ReznikovaAdaptive estimation procedure with applications
 9h30 - 10h00Giovanni MottaLocally Stationary Factor Models
10h00 - 10h30Hilmar BöhmThe wedding of smoothed periodogram and one factor model in the frequency domain
10h50 - 11h20Alexandra DaskovskaDynamical Analysis of the Malmquist Productivity Index
11h20 - 11h50Céline Le Bailly de TilleghemStatistical Contribution to the Virtual Multicriteria Optimization of Combinatorial Molecules Libraries and to the Validation and Application of QSAR Models
11h50 - 12h20Astrid JullionReceptor Occupancy estimation by using Bayesian varying coefficient model

> Program