Faculty of Mathematics and Informatics MIF

Dissertations defended

2025

Informatics

Name, surname	Dissertation title	Supervisor
Vytautas Paura	Hyperspectral Unmixing of Hyperspectral Data Gathered Using an UAV	Prof. Dr. Virginijus Marcinkevičius
Arnoldas Budžys	Deep Learning-Based Keystroke Dynamics Authentication for Insider Threat Detection in Critical Infrastructure	Assoc. Prof. Dr. Viktor Medvedev
Shubham Anoop Juneja	Investigation of Pre-training in Imitation Learning-based Autonomous Driving	Prof. Dr. Virginijus Marcinkevičius
Rokas Gipiškis	Post-Hoc Explainable Semantic Image Segmentation: Applications for Interpretability and Adversarial Attacks	Prof. Dr. Olga Kurasova
Vytautas Dulskis	Development and Application of Efficient Algorithms for Parameter Estimation in Stochastic Dynamic System Models	Prof. habil. dr. Leonidas Sakalauskas

Computer Engineering

Name, surname	Dissertation title	Supervisor
Robertas Jurkus	Maritime Traffic Awareness Evaluation Using Deep Neural Networks	Prof. dr. Povilas Treigys

Mathematics

Name, surname	Dissertation title	Supervisor
Paulius Virbalas	Problems on the Degrees of Algebraic Numbers and Relations Between Algebraic Conjugates	prof. habil. dr. Artūras Dubickas
Algimantas Birbilas	Functional Data Analysis in Telecommunications	prof. habil. dr. Alfredas Račkauskas
Jean Michel Menjanahary	Cyclides and Cyclidic Splines	Dr. Raimundas Vidunas
Rokas Puišys	Survival with Random Effect Transformation and its Properties	Prof. dr. (HP) Jonas Šiaulys
Ugnė Čižikovienė	Investigations of Binomial Group Testing Models	Doc. dr. Viktor Skorniakov
Mickaël Montessinos	The Explicit Isomorphism Problem on Global Fields	Prof. habil. dr. Artūras Dubickas
Grintas Junevičius	Properties of Polynomials of Small Height	Prof. dr. Paulius Drungilas
Jūratė Karasevičienė	Asymptotic Properties of Heavy-Tailed Distributions	Prof. dr. (HP) Jonas Šiaulys

2024

Informatics

Name, surname	Dissertation title	Supervisor
Saulius Tautvaišas	Scalable Bayesian Global Optimization of Black-Box Functions	Prof. Dr. Julius Žilinskas
Bernardas Čiapas	Barcodeless Food Products Recognition for Retail Self-checkout Service	Prof. Dr. Povilas Treigys

Computer Engineering

Name, surname	Dissertation title	Supervisor
Karolis Noreika	Application Software Development Process Using an Enhanced Agile Project Management Method	Prof. dr. Saulius Gudas

Mathematics

Name, surname	Dissertation title	Supervisor
Brigita Žemaitienė	Joint Approximation of Analytic Functions by Certain Classes of Zeta-Functions	Prof. dr. Roma Kačinskaitė, Prof. dr. Jonas Šiaulys, prof. dr. Jonas Šiaulys
Rūta Juozaitienė	Triadic effects in dynamic networks modelling	Prof. Dr. Ernst C.Wit., prof. dr. Jurgita Markevčiūtė
Nikolajus Kozulinas	Application of Navier–Stokes Equations in Hemodynamics	Prof. habil. dr. Konstantinas Pileckas
Mindaugas Jasas	Approximation of Analytic Functions by Absolutely Convergent Dirichlet Series	Prof. habil. dr. Antanas Laurinčikas
Monika Tekorė	Universality of Periodic Zeta-Functions with Multiplicative Coefficients	Prof. habil. dr. Antanas Laurinčikas
Lukas Maciulevičius	Some Degree Problems in Number Fields	Prof. dr. Paulius Drungilas
Gabija Liaudanskaitė	Infinitely Divisible Approximations for Sums of Weakly Dependent Variables	Prof. habil. dr. Vydas Čekanavičius
Ieva Kilienė	On a classification of word problems from the first grade Lithuanian textbooks	Prof. habil. dr. Rimas Norvaiša

2023

Informatics

Name, surname	Dissertation title	Supervisor
Marta Karaliūtė	Supervised Bayesian classification methods of Gaussian Spatio-temporal data based on generative machine learning models	Prof. dr. Kęstutis Dučinskas, prof. dr. Gintautas Dzemyda

Computer Engineering

Name, surname	Dissertation title	Supervisor
Ilona Veitaitė	Enterprise Knowledge-Based UML Dynamic Models Generation Method	Prof. dr. Audrius Lopata
Povilas Gudžius	Automated Machine Learning for Accurate and Low-latency Object Recognition in Optical Satellite Imagery	Prof. dr. Olga Kurasova, doc. dr. Ernestas Filatovas

Mathematics

Name, surname	Dissertation title	Supervisor
Tadas Danielius	Changepoint detection using p-variation of CUSUM process	Prof. habil. dr. Alfredas Račkauskas, prof. dr. Osvaldas Rukšėnas
Saulius Paukštys	Properties of Tail Moments of Heavy‐Tailed Distributions	Prof. dr. Jonas Šiaulys
Aidas Medžiūnas	Various Classes of Stochastic Differential Equations: Existence, Uniqueness, and Approximation	prof. habil. dr. Kęstutis Kubilius

2022

Informatics

Name, surname	Dissertation title	Supervisor
Vaidas Jusevičius	Research and development of an open-source algebraic modeling and mathematical optimization system	Prof. dr. Remigijus Paulavičius
Eglė Zikarienė	Spatial Contextual Classification Based on Conditional Distributions Belonging to Elliptical and Exponential Families	Prof. dr. Kęstutis Dučinskas
Tomas Raila	Computer modeling methods for phospholipid membrane damage assessmentComputer modeling methods for phospholipid membrane damage assessment	Prof. dr. Tadas Meškauskas

Computer Engineering

Name, surname	Dissertation title	Supervisor

Mathematics

Name, surname	Dissertation title	Supervisor
Violeta Lukšienė	Approximation of analytic functions by shifts of certain zeta-functions	Prof. habil. dr. Antanas Laurinčikas
Jonas Sprindys	Asymptotic analysis of heavy tailed distributions	Prof. dr. (HP) Jonas Šiaulys
Rita Juodagalvytė	Multiscale Modelling of Viscous Flows in Domains of Complex Geometry	Prof. habil. dr. Konstantinas Pileckas, Prof. habil. dr. Grigory Panasenko
Saulius Jokubaitis	Sparse models: theory and applications	Prof. habil. dr. Remigijus Leipus
Vytenis Šumskas	Finite volume ADI schemes for hybrid dimension heat conduction models	Prof. habil. dr. Raimondas Čiegis
Gabrielė Mongirdaitė	Weak Approximations of the Wright–Fisher process and Related Problems	Prof. habil. dr. Vigirdas Mackevičius

2021

Informatics

Name, surname	Dissertation title	Supervisor
Rokas Astrauskas	Computer Modelling of Reaction-Diffusion Processes in Scanning Electrochemical Microscopy and in Cell Spheroids	Prof. habil. dr. Feliksas Ivanauskas
Anatolij Nečiporenko	Mathematical Modeling of Bioreactor Control	Prof. habil. dr. Feliksas Ivanauskas
Linas Stripinis	Improvement, development and implementation of derivate-free global optimizatio algorithms	Prof. dr. Remigijus Paulavičius

Computer Engineering

Name, surname	Dissertation title	Supervisor
Albertas Jurgelevičius	Hybrid public distributed computing platform	Prof. habil. dr. Leonidas Sakalauskas
Mindaugas Jusis	Method of data synchronization of autonomous port handling processes	Prof. dr. Saulius Gudas
Mindaugas Morkūnas	Development of Tumor Microenvironment-Oriented Digital Pathology Methods for Whole Slide Image Segmentation and Classification	Doc. dr. Povilas Treigys
Julius Venskus	Semi-supervised and Unsupervised Machine Learning Methods for Sea Traffic Anomaly Detection	Doc. dr. Povilas Treigys
Andrius Daranda	Machine learning-based prediction of the behavior of marine traffic participants and discovering non-standard marine traffic situations	Prof. habil. dr. Gintautas Dzemyda

Mathematics

Name, surname	Dissertation title	Supervisor
Rokas Gylys	Application of the Lee-Carter Mortality Projection Model and Its Modifications in the Modelling of an Insurance Company’s Solvency Capital	Prof. habil. dr. Jonas Šiaulys
Adelė Vaiginytė	Approximation of Analytic Functions by Shifts of Zeta-Functions of Certain Cusp Forms	Prof. habil. dr. Antanas Laurinčikas
Gediminas Vadeikis	Weighted Universality Theorems for the Riemann and Hurwitz Zeta-Functions	Prof. habil. dr. Antanas Laurinčikas
Gediminas Bagdonas	A class of bivariate copula mappings	Assoc. prof. dr. Martynas Manstavičius
Gytenis Lileika	Weak approximations of CKLS model by discrete random variables	Prof. habil. dr. Vigirdas Mackevičius

2020

Informatics

Name, surname	Dissertation title	Supervisor
Andrius Vytautas Misiukas Misiūnas	Investigation of automatic EEG analysis algorithms	Prof. dr. Tadas Meškauskas
Linas Petkevičius	Numerical and symbolic modeling of reaction-diffusion processes in bioreactors	Prof. dr. Romas Baronas
Jūratė Vaičiulytė	Study and Application of Hidden Markov Models to Online Analysis of Multivariate Sequence Data	Prof. habil. dr. Leonidas Sakalauskas
Rima Kriauzienė	Parallel algorithms for non-classical problems with big computational costs	Prof. habil. dr. Raimondas Čiegis

Computer Engineering

Name, surname	Dissertation title	Supervisor

Mathematics

Name, surname	Dissertation title	Supervisor
Andrius Buteikis	Multivariate copula‐basedinteger‐valued time series models:theory and applications	Prof. habil. dr. Remigijus Leipus

2019

Informatics

Name, surname	Dissertation title	Supervisor
Andrius Valatavičius	Enterprise application interoperability evaluation using autonomic computing	Dr. (HP) Saulius Gudas
Natalija Pozniak	Study and application of Euclidean matrices to surrogate modelling	Habil. dr. Leonidas Sakalauskas
Dovilė Stumbrienė	Data envelopment analysis for effectiveness analysis of education systems	Prof. dr. Audronė Jakaitienė
Giedrius Stabingis	Statistical decisions for spatial information in digital images.	Prof. habil. dr. Gintautas Dzemyda

Computer Engineering

Name, surname	Dissertation title	Supervisor
Rokas Jurevičius	Investigation of Particle Filter Based Visual Localization for Unmanned Aerial Vehicle Flights at Low-Altitude	Dr. Virginijus Marcinkevičius
Gabrielė Stupurienė	Concept-driven informatics education: extension of computational thinking tasks and educational platform for primary school	Prof. dr. Valentina Dagienė
Daina Gudonienė	Model and implementation of integrated e-learning objects in educational platform	Prof. dr. Valentina Dagienė

Mathematics

Name, surname	Dissertation title	Supervisor
Alicija Eismontaitė	Singular solutions of Stokes systems in areas with taper	Prof. habil. dr. Konstantinas Pileckas
Kristina Bingelė	Investigation of Spectrum for a Sturm–Liouville problem with Two-Point Nonlocal Boundary Conditions	Prof. dr. Artūras Štikonas

2018

Informatics

Name, surname	Dissertation title	Supervisor
Kotryna Paulauskienė	Massive data visualization based on dimensionality reduction and projection error evaluation	Prof. dr. Olga Kurasova
Albertas Gimbutas	An algorithm of simplicial Lipschitz optimization with the bi-criteria selection of simplices for the bi-section	Prof. habil. dr. Antanas Žilinskas
Linas Litvinas	Computational modelling, signal analysis and optimisation of biosensors	Prof. dr. Romas Baronas
Mykolas Jurgis Bilinskas	Development and application of a mathematical model to parametrization and registration of breast area computed tomography	Prof. habil. dr. Gintautas Dzemyda

Computer Engineering

Name, surname	Dissertation title	Supervisor
Laurynas Dovydaitis	Research on the accuracy of Lithuanian speaker’s identification using recurrent neural networks	Doc. dr.Vytautas Rudžionis
Vladimiras Dolgopolovas	Software learning objects for scientific computing education: teaching scientific inquiry with recurrence based stochastic models	Prof. dr. Valentina Dagienė
Jevgenij Tichonov	Classification-based compression solutions of digital images	Prof. dr. Olga Kurasova
Vytautas Jakštys	Application of contour detection methods to lateral chromatic aberration reduction in eye fundus images and road surface defect detection	Dr. Virginijus Marcinkevičius

Mathematics

Name, surname	Dissertation title	Supervisor
Olga Navickienė	Recursive calculation of risk measures in discrete time risk model with inhomogeneous claims	Prof. habil. dr. Jonas Šiaulys
Eglė Jaunė	Tail asymptotics of a sum of heavy-tailed distributions with application to risk theory	Prof. habil. dr. Jonas Šiaulys
Svetlana Danilenko	Closure properties of randomly stopped sums	Prof. habil. dr. Jonas Šiaulys
Gailė Paukštaitė	Generalized Green‘s functions for problems with nonlocal conditions	Prof. dr. Arturas Štikonas
Dmitrij Mochov	Universality theorems for the periodic Hurwitz zeta–function	Prof. habil. dr. Antanas Laurinčikas
Gražvydas Šemetulskis	Variations on the problems of Erdős-Turán and Littlewood-Offord	Prof.habil. dr. Arturas Dubickas
Rokas Tamošiūnas	Value distribution of Lerch and periodic Hurwitz zeta–functions	Prof. dr. Ramūnas Garunkštis
Audronė Rimkevičienė	Investigations of the asymptotic behaviour of periodic Hurwitz zeta-functions	Prof. habil. dr. Antanas Laurinčikas

2017

Informatics

Name, surname	Dissertation title	Supervisor
Edgaras Artemčiukas	Hybrid object tracking method for augmented reality systems using the Kalman filter	Prof. habil. dr. Leonidas Sakalaukas
Tatjana Liogienė	Hierarchical classification of speech emotions	Doc. dr Gintautas Tamulevičius
Gražina Gimbutienė	Algorithms for non-convex global optimization based on the statistical and Lipschitz objective function models	Prof. habil. dr. Antanas Žilinskas
Kliment Olechnovič	Methods for the analysis and assessment of the three-dimensional structures of proteins and nucleic acids: development and applications	Dr. Česlovas Venslovas

Computer Engineering

Name, surname	Dissertation title	Supervisor
Evaldas Žulkas	Development of energy consumption forecasting and autonomous management system in smart house environmentDevelopment of energy consumption forecasting and autonomous management system in smart house environment	Prof. Dalė Dzemydienė
Tomas Pranckevičius	Investigation of multi-class classification methods for textual data	Dr. Virginijus Marcinkevičius
Martynas Sabaliauskas	Computerized modelling technology of unique footwear surface manufacturing design	Dr. Virginijus Marcinkevičius

Mathematics

Name, surname	Dissertation title	Supervisor
Vytautas Stepas	Moments of additive functions defined on random assemblies	Prof. habil. dr. Eugenijus Manstavičius
Laura Žvinytė	Discrete uniform limit law for additive functions	Prof. habil. dr. Gediminas Stepanauskas
Ieva Grublytė	Modelling of nonlinear long memory	Prof. habil. dr. Donatas Surgailis
Vytautė Pilipauskaitė	Limit theorems for space-time models with long-term memory	Prof. habil. dr. Donatas Surgailis
Julius Damarackas	Spectral covariances and limit theorems for infinite-variance linear processes and fields	Prof. habil. dr. Vygantas Paulauskas
Laimonas Meška	Modified universality theorems for the Riemann and Hurwitz zeta-functions	Prof. habil. dr. Laimonas Laurinčikas
Laurynas Naruševičius	Econometric assessment of bank stability	Prof. habil. dr. Alfredas Račkauskas
Andrius Škarnulis	Quadratic ARCH models with long memory and QML estimation	Prof. habil. dr. Donatas Surgalis
Emilija Bernackaitė	Ruin probability for inhomogeneous renewal risk model	Prof. dr. Jonas Šiaulys

2016

Informatics

Name, surname	Dissertation title	Supervisor
Vytautas Valaitis	Neural networks based robot motion improvement	Prof. habil. dr. Šarūnas Raudys
Dalius Krunglevičius	SSTDP learning of spatial and spatiotemporal patterns	Prof. habil dr. Šarūnas Raudys
Vytautas Jančauskas	Evaluating the Performance of Multi-Objective Particle Swarm Optimization Algorithms	Prof. habil. dr. Antanas Žilinskas
Žilvinas Ledas	Computational modelling of the self-organization of luminous bacteria in liquid	Prof. dr. Romas Baronas

Computer Engineering

Name, surname	Dissertation title	Supervisor
Mindaugas Kurmis	Development of heterogeneous services integration capabilities for changing topology vehicular communication networks	Prof. dr. Dalė Dzemydienė

Mathematics

Name, surname	Dissertation title	Supervisor
Agnė Reklaitė	Measuring the globalisation effect: the application of a dynamic hierarchical linear model	Prof. dr. Marijus Radavičius
Raivydas Šimėnas	On α-values of zeta-functions	Prof. dr. Ramūnas Garunkštis
Lina Dindienė	Asymptotic analysis of the sums of heavy-tailed random variables	Prof. habil. dr. Remigijus Leipus
Jurij Novickij	On the stability of finite difference schemes for hyperbolic equation with nonlocal integral boundary conditions	Prof. dr. Artūras Štikonas
Agnė Skučaitė	Investigation of the spectrum for Sturm–Liouville problem with a nonlocal integral boundary condition	Prof. dr. Artūras Štikonas
Robertas Petuchovas	Asymptotic analysis of the cyclic structure of permutations	Prof. habil. dr. Eugenijus Manstavičius
Antanas Lenkšas	A second-order weak approximation of Heston model by discrete random variables	Prof. habil. dr. Vigirdas Mackevičius
Agneška Korvel	Ruin probabilities of the discrete-time risk model with inhomogeneous claims	Prof. dr. Jonas Šiaulys
Jūratė Šliogerė	Discrete approximations for sums of weakly dependent variables	Prof. habil. dr.. Vydas Čekanavičius

2015

Informatics

Name, surname	Dissertation title	Supervisor
Aurimas Rapečka	Increase of the efficiency of recommender systems in social networks	Prof. habil. dr. Gintautas Dzemyda
Sandra Svanidzaitė	Spiral process model for capture and analysis of non-functional requirements of service-oriented enterprise systems	Prof. dr. Albertas Čaplinskas
Gediminas Gricius	Development of a multi-agent based methods for integration of small-scale embedded systems	Prof. dr. Dalė Dzemydienė
Pavel Stefanovič	Visualization of self-organizing maps and estimation of their quality	Doc. dr. Olga Kurasova
Irina Vinogradova	Distance course selection optimisation	Prof. habil. dr. Jonas Mockus

Computer Engineering

Name, surname	Dissertation title	Supervisor
Jolanta Miliauskaitė	A fuzzy inference-based approach to planning quality of enterprise business services	Prof. dr. Albertas Čaplinskas
Nerijus Galiauskas	Optimization algorithms for multidimensional scaling with city-block distances and their parallelization	Prof. dr. Julius Žilinskas
Olegas Niakšu	Development and application of data mining methods in medical diagnostics and healthcare management	Doc. dr. Olga Kurasova
Joana Katina	Investigation of prediction problems by the virtual stock exchange	Prof. habil. dr. Jonas Mockus

Mathematics

Name, surname	Dissertation title	Supervisor
Kęstutis Janulis	Mixed joint universality for Dirichlet L-functions and Hurwitz type zeta-functions	Prof. habil. dr. Antanas Laurinčikas
Jovita Atstopienė	Discrete universality theorems for the Riemann and Hurwitz zeta-functions	Prof. habil. dr. Antanas Laurinčikas
Raimondas Malukas	Limit theorems for H-variation of Gaussian processes	Prof. habil. dr. Rimas Norvaiša
Erikas Karikovas	Self-approximation of Hurwitz zeta-functions	Prof. dr. Ramūnas Garunkštis
Vaidotas Characiejus	Asymptotic behaviour of long memory functional linear processes	Prof. habil. dr. Alfredas Račkauskas