Rostyslav Maiboroda




Rostyslav Maiboroda

POSITION
Professor of the Department of Probability, Statistics and Actuarial Mathematics

WORK EXPERIENCE
1983–1985
Postgraduate Student
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1986–1999
Assistant professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1999–2000
Associate professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2000–Present
Full Professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

EDUCATION AND TRAINING

1983
BSc + MSc
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1986
PhD
Taras Shevchenko National University of Kiev, Kyiv (Ukraine)

1994
DSc
Taras Shevchenko National University of Kiev, Kyiv (Ukraine)

Statistical analysis of heterogeneous data, hidden Markov chain models, applications to biology and psychology

Research Fields:
Mathematics

Previous and Current Research

  •  Theoretical statistics: nonparametric analysis of mixtures with varying concentrations, a posteriori change-point detection, estimation of parameters of nonstationary diffusion processes, correlation analysis of nonstationary Gaussian processes, hidden Markov chain models
  •  Mathematical models in biology: population dynamics, mitochondrial genetics
  •  Applied statistics: psychometrics, statistical analysis of repertoire grids (Kelly grids), randomized response technique, statistics of sociologic data

  Our research is concentrated on the development of new methods of nonparametric statistical analysis for multidimentional and censored data.
  The team consists of 2 researchers: 1PhD candidate and 1 PhD student.
  We have developed a number of approaches to statistical analysis of nonparametric models of finite mixtures and applied them to data analysis in genetics, sociology and biostatistics.
  Now we develop modified and new algorithms of regression and survival analyses for estimation of statistical characteristics and testing of hypotheses in nonparametric mixture models. We consider application of these algorithms to real medical and sociologic data.

Future Projects and Goals

  • Algorithms of regression and survival analyses based on nonparametric models of finite mixtures
  • Asymptotical analysis of efficiency of developed algorithms for statistics of mixtures
  • Simulation techniques for analysis of algorithms for statistics of mixtures

Selected Publications


Maiboroda R.E., Khizanov V.G.
A modified Kaplan-Meier estimator for a model of mixtures with varying concentrations.
Theory of Probability and Mathematical Statistics. – 2016. – Vol. 92. – P. 109-116.

Maiboroda R.,Sugakova O.
Sampling bias correction in the model of mixtures with varying concentrations.
Methodology and Computing in Applied Probability. – 2015. – Vol. 17 (1). – P. 223-234.

Liubashenko D., Maiboroda R.
Linear regression by observations from mixture with varying concentrations.
Modern Stochastics: Theory and Applications. – 2015. – Vol. 2 (4). – P. 343-353.

Doronin A., Maiboroda R.
Testing hypotheses on moments by observations from a mixture with varying concentrations.
Modern Stochastics: Theory and Applications. – 2014. – Vol. 1 (2). – P. 195-209.

Maiboroda R.,Sugakova O., Doronin A.
Generalized estimating equations for mixtures with varying concentrations.
Canadian Journal of Statistics. – 2013. – Vol. 41 (2). – P. 217-236.

Maiboroda R.,Sugakova O.
Statistics of mixtures with varying concentrations with application to DNA microarray data analysis.
Journal of Nonparametric Statistics. – 2012.

Maiboroda R.,Sugakova O.
Nonparametric density estimation for symmetric distributions by contaminated data.
Metrika. – 2012. – Vol. 75 (1). – P. 109-126.

Maiboroda R., Sugakova O.
Generalized estimating equations for symmetric distributions observed with admixture.
Communications in Statistics - Theory and Methods. – 2011. – Vol. 40 (1). – P. 96-116.

Maiboroda R.,Shcherbina A.
Finite mixtures model approach to sensitive questions in surveys.
Statistics in Transition. – 2011. – Vol. 12 (2). – P. 331-344.

Contacts

Homepage: http://probability.univ.kiev.ua/index.php?page=userinfo&person=mre&lan=en


mre@univ.kiev.ua