Institute of Mathematics and Informatics
4 Akademijos, LT-08663 Vilnius
Tel. 210 9300, fax 272 9209
E-mail:
http://www.mii.lt
Director – Prof. Habil. Dr. Gintautas Dzemyda
STAFF
48 research fellows (44 holding research degree), 50 doctoral students.
- Department of Informatics Methodology
- Department of Numerical Analysis
- Department of Probability Theory and Statistics
- Department of Recognition Processes
- Department of Software Engineering
- Department of Stochastic Processes
- Department of Systems Analysis
RESEARCH AREAS
Integrated Development of Mathematics, Informatics and Information Technologies for the Knowledge Society Advanced Products and Services
DOCTORAL DISSERTATIONS MAINTAINED IN 2014
H. Giedra. Proof system for logic of correlated knowledge.
E. Jasutė. Visualization model for the constructionist teaching and learning of geometry.
I. Vaičiulytė. Study and application of Markov Chain Monte Carlo method.
A. Balčiūnas. Mellin Transforms of Dirichlet L-Functions.
D. Baronas. Computer aided modelling of multilaver biosensors and optimization based processing of amperometric measurements.
K. Piaseckienė. The statistical methods in the analysis of the Lithuanian language complexity.
L. Ringienė. Hybrid neural network for multidimensional data visualization.
V. Dumskis. Analysis and application of methods for search of stochastic equilibrium.
D. Drungilas. Integration of methods of affect recognition and adaptive control of services in the enclosed environment microclimate control system.
J. Urbonienė. Design of adaptive programming teaching tools.
G. Vaira. Genetic algorithm for vehicle routing problem.
I. Katin. On development and investigation of stock-exchange model.
L. Savulionienė. Association rules search in large data bases.
D. Dzindzalieta. Tight Bernoulli tail probability bounds.
A. Juškevičienė. Research on Web 2.0 technologies for education.
G. Jakimauskas. Analysis and application of empirical Bayes methods in data mining.
MAIN CONFERENCES ORGANIZED IN 2014
6th international seminar Data Analysis Methods for Software Systems, December 4–6, 2014, Druskininkai, Lithuania
5th international doctoral Consortium Informatics and Informatics Engineering Education Research, December 2–6, 2014, Druskininkai, Lithuania
International conference On Olympiads in Informatics, July 13–20, 2014, Taipei, Taiwan
11th international Vilnius Conferene onProbability Theory and Mathematical Statistics, June 30–July 4, 2014, Vilnius, Lithuania
10th international workshop "Bebras" on Developing Tasks for CS Education and Open Conference on Best Practice in Informatics at Schools, June 1–7, 2014, Druskininkai-Vilnius, Lithuania
Baltic Olympiad on Informatics, May 26-30, 2014, Palanga, Lithuania
MAIN SCIENTIFIC ACHIEVEMENTS IN 2014
Generalized classical Peaceman-Rachford Alternating Direction Method for pseudoparabolic equation with integral conditions and the stability of this method proved (M. Sapagovas, A. Štikonas, O. Štikonienė).
Stability of weighted finite difference scheme for hyperbolic equation examined (A. Štikonas).
Dirichle type problem for weakly coupled eliptic system that degenerates on a line intersecting the domain examined. Sufficient conditions for the existance and uniqueness of the solution in the class of Holder functions obtained (S. Rutkauskas).
DEPARTMENT OF INFORMATICS METHODOLOGY
4 Akademijos, LT-08663 Vilnius
Tel. 210 9732
E-mail:
Head – Prof. Dr. Valentina Dagienė
STAFF
Chief research fellow: Prof. Dr. V. Dagienė.
Affiliated senior research fellows: Assoc. Prof. Dr. G. Grigas, Dr. L. Markauskaitė.
Research fellows: Dr. T. Jevsikova, Dr. J. Kurilov (until 2014-06-30), Dr. S. Sėrikovienė (until 2014-06-30), Dr. I. Žilinskienė.
Doctoral students: L. Cibulskaitė, V. Dolgopolovas, D. Gudonienė, E. Jasutė, A. Juškevičienė, A. Savickaitė, G. Stupurienė, J. Urbonienė.
Specialists: D. Ardickas, V. Dagys, Dr. E. Jasutė, Dr. S. Kubilinskienė (until June 30, 2014), E. Pėlikis, Dr. J. Skūpienė, G. Svetikienė.
RESEARCH INTERESTS
Informatics and engineering solutions for technology enhanced learning
Software (especially educational one) localisation and adaptations to the Lithuanian language
Analysing learning and teaching processes using information technology
Investigating students’ understandings and experiences of programming concepts and processes
Analysing software internationalisation and establishing criteria
Systematising the main computer terms and phrases of localised software, developing vocabularies and dictionaries of computer terminology
Preparing specialised tools to support teaching and learning in programming, including semi-automatic assessment and feedback tools, program animation and simulation tools
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Informatics and Engineering Solutions for Technology Enhanced Learning. Software Localisation and Adaptations to Lithuanian Language. Prof. V. Dagienė, 2012–2014.
Learning objects personalisation based on semantic web technologies has been investigated; semi-authomatic assessment method of programming assignments has been created; personalised learning scenario optimisation method using swarm-based approach has been created; text input on mobile devices from cultural and educational perspectives has been investigated.
Main publications:
Kurilovas, E., Kubilinskiene, S., Dagiene, Web, V. 2014. 3.0–based personalisation of learning objects in virtual learning environments. Computers in Human Behavior, vol.30, 654–662.
Dagienė, V., Skūpas, B., Kurilov, J. 2014. Programming assignments in virtual learning environments: developments and opportunities for engineering education. International Journal of Engineering Education, vol. 30, no 3, 644–653.
Kurilovas, E., Zilinskiene, I., Dagiene, V. 2014. Recommending suitable learning scenarios according to learners’ preferences: an improved swarm based approach. Computers in Human Behavior, vol.30, 550–557.
Dagienė, V., Grigas, G., Jevsikova, T. 2014. Text input on mobile devices from cultural and educational aspects. Informatica, vol. 25, no. 3, 415–424.
National Research Projects
EU structural funds. Software, Relevant for the Society, Localisation and Creation of Software Tools. No. VP2-3.I-IVPK-12-K-01-004/ LSS-180000-642. 2012–2014.
As a result of the project, 5 computing dictionaries (Normative computing glossary, Encyclopaedic computing dictionary, English-Lithuanian computing dictionary, Dictionary of phrases of computing lexis, Thematic dictionary of computing) and translation memory have been created, 4 software packages have been localised (e-portfolio system Mahara, virtual learning environment Claroline, client management system VTiger, accountancy system TurboCash).
International Research Projects
F7-SCIENCE-IN-SOCIETY-2012-1 Mathematics and Science for Life – MaScil. Consortium Agreement for the Project Mascil 2013-06-12 Nr. 320.693, Coordinator: Pädagogische Hochschule Freiburg (Germany), Partners: Austria, Greece, Netherlands, Spain, Lithuania, Cyprus, United Kingdom, Czech Republic, Norway, Germany, Bulgaria, Romania, Turkey.
Lifelong Learning Programme, Improving School Governance using an Action Learning Approach – IGUANA. 527856-LLP-1-2012-1-PT-COMENIUS-CMP. Coordinator: Universidade Católica Portuguesa (UCP) (Portugal). Partners: Portugal, United Kingdom, Greece, Lithuania, Ireland.
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
Aalto University (Finland)
University of Eastern Finland of Joensuu and Kuopio (Finland)
Freie Universitaet Berlin (Germany)
Radboud University Nijmegen (The Netherlands)
Lithuanian Computer Society (Lithuania)
OTHER SCIENTIFIC ACTIVITIES
Prof. Dr. V. Dagienė –
- editor-in-Chief of international journals Informatics in Education and Olympiads in Informatics;
- expert of EU Eurostars Programme;
- representative of Lithuania in Education Committee TC3 under the International Federation for Information Processing (IFIP);
- vice chair of the Technical Committee of IFIP for Education (TC3);
- member of Steering Committee of International Olympiads in Informatics.
Assoc. Prof. E. Kurilovas –
- member of Steering Committee of European Schoolnet (or EUN, the network of 31 European Ministries of Education);
- member of Lithuanian national CEDEFOP and ReferNet Committees;
- expert-evaluator: PHARE, Leonardo da Vinci, eContentplus programmes, European Regional Development Fund.
Dr. T. Jevsikova –
- International Federation for Information Processing (IFIP) TC3 WG 3.1 (Informatics for Secondary Education) member;
- Program commetee member of the 4th international conference on Learning and Teaching in Computing and Engineering (LaTiCe 2014), http://ctl.utm.my/latice_rceerhed2014/?page_id=237;
- organising commetee member of 5th international doctoral school on Informatics Education and Educational Software Engineering Research. Druskininkai, November 26–30, 2014;
- Program Chair of international conference ITiCSE 2015 (the 20th Annual Conference on Innovation and Technology in Computer Science Education), http://www.iticse2015.mii.vu.lt/en/menu1/committee/;
- organising commitee member of IFIP working joint conference A New Culture of Learning: Computing and Next Generations, http://www.ifip2015.mii.vu.lt/committee-3.
DEPARTMENT OF NUMERICAL ANALYSIS
4 Akademijos, LT-08663 Vilnius
Tel. 210 9734
E-mail:
http://www.mii.lt
Head – Prof. Dr. Artūras Štikonas
Chief research fellows: Prof. Habil. Dr. M. Sapagovas; Prof. Dr. S. Rutkauskas; Prof. Dr. A. Štikonas.
Senior research fellows: Assoc. Prof. Dr. O. Štikonienė.
Research fellow: Dr. S. Roman.
Doctoral students: A. Balčiūnas, G. Paukštaitė, A. Skučaitė; K. Skučaitė-Bingelė, L. Stonkienė.
RESEARCH INTERESTS
Differential equations and applications
Investigation of the spectrum and boundary value problems for differential and difference operators with nonlocal conditions
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
The Investigation of Spectrum and Boundary Problems of Differential and Difference Operators with Non-Local Conditions. Prof. Dr. A. Štikonas. 2011–2016.
The aims were to examine the stability of alternating direction method for pseydoparabolic equation with nonlocal conditions; investigate the impact of coefficients of differential and difference operators with nonlocal conditions to the structure of the spectrum; investigate the domain of stability of pseudoparabolic schemes; investigate well-posedness of weakly coupled Dirichle type degenerate eliptic system when coupling matrix does not have simple structure.
Main publications:
Štikonienė, O, Sapagovas, M., Čiupaila, R. 2014. On iterative methods for some elliptic equations with nonlocal conditions. Nonlinear Anal. Model. Control, vol. 19(3), 517–535.
Novickij, J., Štikonas, A. 2014. On the stability of a weighted finite difference scheme for wave equation with nonlocal boundary conditions. Nonlinear Anal. Model. Control, vol. 19(3), 460–475.
Rutkauskas, S. 2014. Dirichlet type problem for the system of elliptic equations, which order degenerate at a line. Nonlinear Anal. Model. Control, vol. 19(3), 476–487.
National Research Projects
Research Council of Lithuania. Investigation of Stationary Problems with Nonlocal Conditions, Numerical Analysis and Applications (No. MIP-047/2014). A. Štikonas. 2014–2016.
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
Belarus State University, Minsk (Belarus)
OTHER SCIENTIFIC ACTIVITIES
Prof. Dr. A. Štikonas -
- deputy-editor-in-Chief of the journal Nonlinear Analysis: Modelling and Control;
- editorial board member of the journal Mathematical Modelling and Analysis;
- editorial board member of the Lithuanian Mathematical Journal.
Prof. Habil Dr. M. Sapagovas –
- editorial board member of journal Lithuanian Mathematical Journal;
- editorial board member of journal Nonlinear Analysis: Modelling and Control.
Assoc. Prof. Dr. O. Štikonienė –
- managing editor of the journal Lithuanian Mathematical Journal.
Prof. Dr. S. Rutkauskas –
- editorial board member of journal Lithuanian Mathematical Journal;
- associate editor of journal Lietuvos matematikos rinkinys. Proc. of the Lithuanian Mathematical Society, Ser. A and Ser. B;
- editorial board member of journal Mathematical Modelling and Analysis.
DEPARTMENT OF PROBABILITY THEORY AND STATISTICS
4 Akademijos, LT-08663 Vilnius
Tel. 210 9731
E-mail:
Head – Prof. Dr. Habil. Kęstutis Kubilius
STAFF
Chief research fellows: Prof. Habil. Dr. K. Kubilius, Prof. Habil. Dr. E. Manstavičius, Prof. Habil. Dr. V. Paulauskas, Prof. Habil. Dr. J. K. Sunklodas.
Affiliated chief research fellow: Prof. Dr. J. J. Mačys.
Senior research fellows: Prof. Dr. O. Januškevičienė, Prof. Dr. S. Norvidas, Prof. Dr. M. Radavičius, Prof. Habil. Dr. R. Rudzkis.
Research fellows: A. Bakšajevas, D. Dzindzalieta, V. Kurauskas, A. Čiginas.
Doctoral students: V. Butkus, L. Dreižienė, Š. Germanas, M. Lapėnaitė-Gedvilė, T. Rudys. Technicians: L. Rybnikova, P. Šarka, R. Šimėnas
RESEARCH INTERESTS
Applied probability theory, statistical hypothesis testing, econometrics
Probability theory, random matrix theory, combinatorics, discrete mathematics
Exponential dispersion models
Finite population statistics and statistical analysis of data
Extremal Problems in Harmonic Analysis
Statistics of random process
Random graphs
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Asymptotic Analysis of Linear and Nonlinear Statistics. Prof. Habil. Dr. K. Kubilius 2013–2015.
The upper bounds of the Lp norms of the normal approximation for random sums of independent identically distributed random variables, where the number of summands is a binomial random variable, are obtained. The methods of construction and simulation of the multivariate distributions of Tweedie are considered. A measure of dependence for symetric α-stable random vectors was considered. Strongly consistent and asymptotically normal estimators of the Hurst parameter and volatility of the nonlinear stochastic diferential equation driven by fBm were obtained. Some goodness-of-fit tests based on the maximum of smooth empirical processes were considered. Nonparametric estimates of large number of rare events distribution were proposed. Asymptotic properties of distribution of finite population statistics were considered. The dependencies of individual sectorial stock price indices of OMX Baltic security market on macroeconomic indicators using econometric methods were examined. Positive definite distributions criterion in terms of analytic functions was obtained. The asymptotic distributions of the sequences of integer-valued additive functions defined on the symmetric group endowed with the Ewens probability measure as the order of the group increases were explored. It was proven that the a-points of the Selberg zeta-function are distributed uniformly modulo one.
Main publications:
Čiginas, A., 2014. On the asymptotic normality of finite population L-statistics. Statistical Papers, vol. 55, no 4, 1047–1058.
McDiarmid, C., Kurauskas, V. 2014. Random graphs containing few disjoint excluded minors. Random Structures and Algorithms, vol. 44, no 2, 240–268.
National Research Projects
Project: Robust Estimation in Finite Populations. Prof. Dr. M. Radavičius, Dr. A. Čiginas 2013–2015.
The research is supported by the European Union Structural Funds project Postdoctoral Fellowship Implementation in Lithuania within the framework of the Measure for Enhancing Mobility of Scholarsand Other Researchers and the Promotion of Student Research (VP1-3.1-ŠMM-01) of the Program ofHuman Resources Development Action Plan.
Research Council of Lithuania. Existence of Solutions of Stochastic Differential Equations and Estimation of Parameters (No. MIP-048/2014). Prof. Dr. Habil. K. Kubilius 2014–2016.
Research Council of Lithuania. Statistical Inferences for Models with Fractional Brownian Motion and Small Values of the Hurst Index (No. VIZ-TYR-110). Prof. Dr. Habil. K. Kubilius, Prof. Dr. Y. Mishura. 2014.
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
Bielefeld University Collaborative Research Centre (Germany)
Taras Shevchenko National University of Kyiv (Ukraine)
OTHER SCIENTIFIC ACTIVITIES
Prof. Habil Dr. K. Kubilius –
- co-editor-in-chief of the Modern Stochastics: Theory and Applications, https://www.i-journals.org/vtxpp/VMSTA/ ;
- editorial board member of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard;
- editorial board member of the Mathematical Modelling and Analysis, http://inga.vgtu.lt/~art/ ;
- member of the organizing committee of international conference 11th International VilniusConference on Probability Theory and Mathematical Statistics, http://www.vilniusconference2014.mif.vu.lt/organisation/;
- member of Programme committee of international conference Probability, Reliability and Stochastic Optimization, http://probability.univ.kiev.ua/prestoconf/.;
- board member of the Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/index_en.html.
Prof. Habil. Dr. E. Manstavičius -
- section editor of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard;
- editorial board member of the International Journal of Number Theory, http://www.worldscientific.com/page/ijnt/editorial-board;
- editorial board member of the ISRN Combinatorics, http://www.isrn.com/journals/combinatorics/editors/;
- member of the organizing committee of international conference 11th International VilniusConference on Probability Theory and Mathematical Statistics, http://www.vilniusconference2014.mif.vu.lt/organisation/;
- chairman of the Organizing Committee of the LIX Conference of Lithuanian Mathematical Society;
- chairman of the Board of the Lithuanian Mathematical Society;
- member of the Lithuanian Academy of Sciences, http://lma.lt/index.php?option=com_k2&view=item&layout=item&id=366&Itemid=230&lang=en .
Prof. Dr. S. Norvidas –
- editorial board member of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard .
Prof. Habil Dr. V. Paulauskas –
- member of the Lithuanian Academy of Science, http://lma.lt/index.php?option=com_k2&view=item&layout=item&id=366&Itemid=230&lang=en ;
- editor-in-Chief of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard ;
- member of the American Mathematical Society, http://www.ams.org/home/ ;
- board member of the Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/index_en.html;
- member of the International Statistical Institute, http://isi.cbs.nl;
- board member of the Lithuanian Statistical Society, http://www.statistikusajunga.lt/index.php?option=com_content&task=view&id=5&Itemid=7 .
Assoc. Prof. Dr. M. Radavičius –
- editorial board member of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard;
- editorial board member of the Modern Stochastics: Theory and Applications, https://www.i-journals.org/vtxpp/VMSTA/ .
Prof. Habil. Dr. R. Rudzkis –
- editorial board member of the Lithuanian Mathematical Journal, http://www.springer.com/mathematics/journal/10986?detailsPage=editorialBoard;
- editorial board member of the journal Прикладная эконометрика, http://www.appliedeconometrics.ru/r/board/;
- editorial board member of the journal Lietuvos statistikos darbai (Statistics Journal);
- editorial board member of the journal Pinigų studijos (Monetary Studies), http://www.lb.lt/pinigu_studijos_redkolegija.
DEPARTMENT OF RECOGNITION PROCESSES
4 Akademijos, LT-08663 Vilnius
Tel. 210 9304
E-mail:
Head – Prof. Dr. Julius Žilinskas
STAFF
Chief research fellows: Prof. Dr. J. Žilinskas, Prof. Habil. Dr. K. Kazlauskas, Prof. Dr. B. Jasiūnaitė, Dr. V. Kardelis.
Senior research fellows: Prof. Habil. Dr. A. L. Telksnys, Assoc. Prof. Dr. R. Pupeikis, Assoc. Prof. Dr. R. Kliukienė, Dr. P. Kasparaitis.
Research fellows: Dr. A. Lančinskas, Dr. G. Korvel, Dr. G. Tamulevičius, Dr. M. Beniušė, Dr. R. Paulavičius, Dr. V. Zubaitienė, J. T. Ramonaitė.
Junior research fellows: N. Galiauskas.
Specialists, engineering and expert staff: L. Makutėnas, E. Švageris, E. Robertas Ožeraitis, G. Navickas, J. Kaukėnas, Dr. A. Valotka, U. Civilkaitė, D. Krikštaponytė, T. Tarabilda, Dr. M. Filipovič, Dr. S. Laurinčiukaitė, Dr. G. Skersys, Dr. I. Smetonienė, T. Anbinderis, Ž. Ringelienė, L. Vėbra, D. Lebedenko, M. Greibus, G. Stapčinskienė, J. Katina.
Doctoral students: A. Dzidolikaitė, D. Eringis, T. Liogienė, G. Vaicekauskas, G. Graževičius, R. Smaliukas, T. Tišina, E. Zikarienė.
RESEARCH INTERESTS
Random processes analysis and recognition
Optimization and high-performance computing
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Analysis, Recognition, Optimization, and Control of Non-Linear Systems and Signals with Complex Structure Prof. Dr. J. Žilinskas. 2014–2016.
Optimization algorithms for speech models, engineering structures, location and other problems. Analysis of the information protection methods and cryptanalysis strength enhancement. Identification and management methods algorithms of self-regulation of nonlinear systems, consisting of a linear block and static nonlinearity combinations, analysis by the way of computer simulation.
Main results were as follows: an algorithm for key-dependent S-box generation in the symmetric cipher system; proposed and investigated optimization algorithms; Ritmoskopas E system effectiveness was evaluated in heart rate during a trial run. The experiment was carried out in Utena district dispensaries with 90 patients and 100 rowing athletes and battles. The results were used for practical medical purpose.
The fast Fourier transform procedure is modified in order to calculate the spectrum values in real time applications, when an old observation in a fixed period is changed by a new one; isolated word recognition rate dependance on analysis window length and frame shift was analysed. Recomendations for analysis parametre setup were formulated.
Main publications:
Paulavičius, R., Sergeyev, Y. D., Kvasov, D. E., Žilinskas, J. 2014. Globally-biased DISIMPL algorithm for expensive global optimization. Journal of Global Optimization, vol. 59, No. 2-3, 545–567.
Eringis, D., Tamulevičius, G. 2014. Improving speech recognition rate through analysis parameters. Electrical, Control and Communication Engineering, vol. 5, No. 1, 61–66.
National Research Projects
Research Council of Lithuania. Creation and Development of Algorithms for Global Optimization (No. MIP-051/2014) Prof. Dr. J. Žilinskas. 2014–2016.
The aim of the project is to create and develop global optimization algorithms. Statistical, heuristic, and deterministic algorithms, their hybrids and parallel versions are developed and investigated in this project. We will aim to investigate which algorithms on which problems perform better and propose recommendations for solution of practical optimization problems.
European Union Structural Funds project: European Union Structural Funds project "Postdoctoral Fellowship Implementation in Lithuania" within the framework of the Measure for Enhancing Mobility of Scholars and Other Researchers and the Promotion of Student Research (VP1-3.1-ŠMM-01) of the Program of Human Resources Development Action Plan. Post doctoral researcher R. Paulavičius (No. 004/18/ MTDS-580000-400). Prof. Dr. J. Žilinskas. 2012–2014.
Main publications:
Paulavičius, R., Žilinskas, J. 2014. Simplicial Global Optimization. Springer, doi:10.1007/978-1-4614-9093-7.
Paulavičius, R., Sergeev, Y.D., Kvasov, D. E., Žilinskas, J. 2014. Globally-biased DISIMPL algorithm for expensive global optimization. Journal of Global Optimization, vol. 59(2–3), 545–567. doi: 10.1007/s10898-014-0180-4.
Paulavičius, R., Žilinskas, J. 2014. Simplicial Lipschitz optimization without the Lipschitz constant. Journal of Global Optimization, vol. 59(1), 23–40. doi:10.1007/s10898-013-0089-3
European Union Structural Funds project: Services Controlled by the Lithuanian Speech - The project LIEPA (No. VP2-3.1-IVPK-12-K-01-001) Prof. Habil. Dr. L. Telksnys. 2013–2015.
The project LIEPA is aimed at developing tools which would open the possibilities of working and communicating with computers and smart things using the Lithuanian speech which presents numerous specific problems due to itsabundant polysemy of inflection.
The services developed will be conducive to fostering pupils’ abilities to use speech technologies, will aid adults in various work by talking to computers in Lithuanian, will provide people with advice how to correctly pronounce words in Standard Lithuanian.
International Research Projects
COST action: Mathematical Optimization in the Decision Support Systems for Efficient and Robust Energy NetworksTD1207 Member of Managing Committee. Prof. Dr. J. Žilinskas. 2013–2017, http://www.cost.eu/domains_actions/ict/Actions./TD1207?management.
Energy Production and Distribution (EP&D) is among the biggest challenges of our time, since energy is a scarce resource whose efficient production and fair distribution is associated with many technical, economical, political and ethical issues like environmental protection and people health. EP&D networks have rapidly increased their size and complexity, e.g. with the introduction and interconnection of markets within the EU. Thus, there is an increasing need of systems supporting the operational, regulatory and design decisions through a highly inter-disciplinary approach, where experts of all the concerned fields contribute to the definition of appropriate mathematical models. This is particularly challenging because these models require the simultaneous use of many different mathematical optimization tools and the verification by experts of the underlying engineering and financial issues.
COST action: Onetwork for Sustainable Ultrascale Computing (NESUS) IC1305 Member of Managing Committee Dr. A. Lančinskas. 2014–2018, http://www.cost.eu/COST_Actions/ict/Actions/IC1305.
Ultrascale systems are envisioned as large-scale complex systems joining parallel and distributed computing systems that will be two to three orders of magnitude larger that today's systems. The EU is already funding large scale computing systems research, but it is not coordinated across researchers, leading to duplications and inefficiencies. The goal of the NESUS Action is to establish an open European research network targeting sustainable solutions for ultrascale computing aiming at cross fertilization among HPC, large scale distributed systems, and big data management. The network will contribute to glue disparate researchers working across different areas and provide a meeting ground for researchers in these separate areas to exchange ideas, to identify synergies, and to pursue common activities in research topics such as sustainable software solutions (applications and system software stack), data management, energy efficiency, and resilience. Some of the most active research groups of the world in this area are members of this proposal. This Action will increase the value of these groups at the European-level by reducing duplication of efforts and providing a more holistic view to all researchers, it will promote the leadership of Europe, and it will increase their impact on science, economy, and society.
A European Commission Funded Projec (Comenius MP): Learning Mathematics through new Communication Factors (No. 526315-LLP-2012-CY-COMENIUS-CMP) Assoc. Prof. Dr. R. Pupeikis. 2012–2014.
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
Hospital Kauno klinikos of Lithuanian University of Health Sciences (Lithuania)
CC Algoritmų sistemos (Lithuania)
CC Inogama (Lithuania)
Universidad de Almería (Spain)
Università della Calabria (Italy)
OTHER SCIENTIFIC ACTIVITIES
Prof. Dr. J. Žilinskas –
- editorial boards member of the international journals:
- Central European Journal of Computer Science (Springer/Versita), http://www.springer.com/computer/journal/13537?detailsPage=editorialBoard ;
- Central European Journal of Engineering (Springer/Versita), http://www.springer.com/engineering/journal/13531?detailsPage=editorialBoard ;
- Informatica (IOSPress/VU), http://www.mii.lt/informatica/editors.htm ;
- Journal of Global Optimization (Springer), http://www.springer.com/business+%26+management/operations+research/journal/10898?detailsPage=editorialBoard ;
- Mathematical Modelling and Analysis (Taylor&Francis/VGTU), http://www.tandfonline.com/action/journalInformation?show=editorialBoard&journalCode=tmma20 ;
- Optimization Letters (Springer), http://www.springer.com/mathematics/journal/11590?detailsPage=editorialBoard .
- chair of managing board of Continuous Optimization Working Group of The Association of European Operational Research Societies (EURO), http://europt.iam.metu.edu.tr/h_contactyeni.html ;
- board member of the Lithuanian Operational Research Society (member society of EURO and IFORS), head of working group Optimization Methods and Applications, http://www.mii.lt/LitORS/ ;
- member of European Network of Excellence on High Performance and Embedded Architecture and Compilation (HiPEAC), http://www.hipeac.net ;
- organizer:
- workshop Applications of Parallel Computation in Industry and Engineering on Euro-Par 2014: 20th International European Conference on Parallel Processing, Porto, Portugal, August 25–29, 2014, http://europar2014.dcc.fc.up.pt/ ;
- Invited section Nonconvex Multiobjective Optimization on IFORS2014: 20th Conference of the International Federation of Operational Research Societies, Barcelona, Spain, July 13–18, 2014, http://ifors2014.upc.edu/home/ifors ;
- member of Program/Scientific Committees:
- EUROPT 2014: 12th EUROPT Workshop on Advances in Continuous Optimization, Perpignan, France July 10–12, 2014, www.euro-online.org ;
- EURO Mini-conference on Optimization in the Natural Sciences, Aveiro, Portugal February 5–9, 2014, http://www.euro-online.org .
Prof. Dr. Habil. A. L. Telksnys –
- Council member of the Digitization of Lithuanian Cultural Heritage;
- board member of the Ministry of Culture of the Republic of Lithuania Archives;
- member of the IEEE Technical Committee on eHealth;
- member of the Working group WG 7.1 Modeling and Simulation of the International Federation of Information Processing (IFIP);
- member of Lithuanian Academy of Sciences;
- member of Commission of the Seimas of the Republic of Lithuania on Lithuanian traditions and heritage actualization;
- editorial board member of the international journal Informatica, http://www.mii.lt/Informatica/editors.htm;
- editorial board member of the international journal Information Technology and Control, http://www.itc.ktu.lt/index.php/ITC/about/editorialTeam;
- editorial board member of the journal Informacijos mokslai, http://www.leidykla.vu.lt/lt/mokslo-darbai/informacijos-mokslai/informacijos-mokslai-2011-55-tomas/redaktoriu-kolegija/;
- editorial board member of the international journal Tamkang Journal of Science and Engineering, http://www2.tku.edu.tw/~tkjse/editorial_board-en.htm;
- award of INFOBALT most prominent academic partner;
- prepared the Concept of Lithuanian speech into Electronic Media Research development in 2014–2020. LIEPA 2.
Prof. Dr. Habil. K. Kazlauskas –
- member of Lithuanian Computer Society, http://www.liks.lt;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/.
Assoc. Prof. Dr. R. Pupeikis –
- member of Lithuanian Computer Society, http://www.liks.lt;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/;
- member of Lithuanian Scientific Society, http://www.lms.lt/?q=en/members.
Dr. G. Tamulevičius –
- member of IEEE Computer society and Signal processing society section.
Dr. A. Lančinskas –
- affiliate member of European Network of Excellence on High Performance and Embedded Architecture and Compilation (HiPEAC), http://www.hipeac.net;
- member of management committee of COST action IC1305 Network for Sustainable Ultrascale Computing (NESUS).
Dr. R. Paulavičius –
- affiliate member of European Network of Excellence on High Performance and Embedded Architecture and Compilation (HiPEAC), http://www.hipeac.net.
DEPARTMENT OF SOFTWARE ENGINEERING
4 Akademijos, LT-08663 Vilnius
Tel. 210 9340, fax 272 9209
E-mail:
http://www.mii.lt/PSIS/indexEN.php
Head – Prof. Dr. Saulius.Gudas
Sector of Mathematical Logic
Head– Assoc. Prof. Habil. Dr. Regimantas Ričardas Pliuškevičius
E-mail:
STAFF
Chief research fellows: Prof. Dr. A. Čaplinskas, Prof. Dr. D. Dzemydienė (part-time), Prof. Dr. S. Gudas, Prof. Dr. Habil. S. Jukna (affiliated).
Senior research fellows: Assoc. Prof. Dr. A. Lupeikienė, Assoc. Prof. Habil. Dr. R. Pliuškevičius, Assoc. Prof. Dr. A. Pliuškevičienė (affiliated).
Research fellows: Dr. R. Alonderis, Dr. S. Maskeliūnas, Assoc. Prof. Dr. J. Sakalauskaitė.
Assistant research fellow: L. Paliulionienė.
Doctoral students: A. P. Girčys, G. Gricius, M. Kurmis, J. Miliauskaitė, A. Miliauskas, S. Svanidzaitė, A. Valatavičius, E. Žulkas.
Programmer: J. Miliauskaitė.
RESEARCH INTERESTS
Information system engineering:
- Theoretical foundations
- Model driven development
Software engineering:
- Software service engineering
- Computer-aided software engineering
Knowledge-based systems
Sector of Mathematical Logic
Proof theory of non-classical logics
Automated deduction
Decision procedures
Boolean function complexity
Lower bounds
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Methods and Technologies to Specify, Model, and Develop Services-Oriented Software Systems. Prof. Dr. A. Čaplinskas (leader), Prof. Dr. S. Gudas, Prof. Dr. D. Dzemydienė, Doc. Dr. A. Lupeikienė, Dr. S. Maskeliūnas, G. Gricius, M. Kurmis, J. Miliauskaitė, A. Miliauskas, L. Paliulionienė, S. Svanidzaitė. 2012–2014.
It was proposed how to integrate information software systems requirements that were specified on the basis of different stakeholders views and attitudes.
The methods that enable to adapt heterogeneous e-services for special user’s needs were created. The service-oriented decision support system architecture was proposed which integrate knowledge base, reasoning rules, and situation recognition rules by using wireless technology solutions.
Main publications:
Svanidzaitė, S. 2014. A methodology for capturing and managing non-functional requirements for enterprise service-oriented systems. Baltic J. Modern Computing, vol. 2(3), 117–131.
Kurmis, M., Dzemydiene, D., Andziulis, A., Voznak, M., Jakovlev, S., Lukosius, Z., Gricius, G. 2014. Prediction based context data dissemination and storage model for cooperative vehicular networks. In Zelinga, I., Suganthan, P.N., Chen, G., Snasel, V., Abraham, A., Roessler, O. (Eds.). Computational Intelligence and Complexity. Nostradamus 2014: Prediction, Modeling and Analysis of Complex Systems. Springer International Publishing Switzerland, 289, 21–30.
Gricius, G., Drungilas, D., Andziulis, A., Dzemydienė, D., Voznak, M. 2014. SOM based multi-agent hydro meteorological data collection system. In: Zelinga, I., Suganthan, P.N., Chen, G., Snasel, V., Abraham, A., Roessler, O. (Eds.). Computational Intelligence and Complexity. Nostradamus 2014: Prediction, Modeling and Analysis of Complex Systems, Springer International Publishing Switzerland, 289, 31–41.
Construction of Deductive Systems for non-classical logics; evaluation of lower bounds for algorithmic paradigms. Assoc. Prof. Dr. Habil. R. Pliuškevičius (leader), Dr. R. Alonderis, Dr. Habil. S. Jukna, Assoc. Prof. Dr. J. Sakalauskaitė, A. P. Girčys. 2012–2014.
Two finite proof search procedures for temporal logic of knowledge were constructed: one with weak-induction rule and looping axioms, and one based on the marks method.
The decision procedure was constructed for logic of correlated knowledge.
It was proved that dynamic programming algorithms for optimization problems with homogeneous objective functions cannot be more effective than monotonic arithmetic schemes.
Main publications:
Jukna, S. 2014. Limitations of incremental dynamic programming. Algorithmica, vol. 69(2), 461–492.
Jukna, S. 2014. Lower bounds for tropical circuits and dynamic programs. Theory of Computing Systems 2014, doi: 10.1007/s00224-014-9574-4.
National Research Projects
European Social Fund Agency. Theoretical and Engineering Aspects of E-Service Technology Development and Application in High-Performance Computing Platforms (No. VP1-3.1-ŠMM-08-K-01-010). Prof. Dr. A. Čaplinskas, Doc. Dr. A. Lupeikienė, J. Miliauskaitė, L. Paliulionienė. 2012–2015.
A view-based approach to derive the balanced service quality requirements from an initial set of stakeholders’ needs was proposed using fuzzy logic concepts with quality categories.
A method for comparison of SLAs in service-oriented computing using rule-based knowledge representation and first-order logic-based derivation was created.
Main publications:
Lupeikiene, A., Caplinskas, A. 2014. Requirements engineering for service-oriented enterprise systems: quality requirements negotiation. In: Haav, H.-M.; Kalja, A.; Robal, T. (Eds.). Databases and Information Systems VIII. Frontiers in Artificial Intelligence and Applications. Amsterdam: IOS Press, 270, 27–40.
Miliauskaite, J. 2014. The membership function construction in view-based framework. In: Haav, H.-M., Kalja, A., Robal, T. (Eds.). Proceedings of the 11th International Baltic Conference on Database and Information Systems [Baltic DB&IS 2014], 8–11 June, Tallinn, Estonia. Tallinn: Tallinn University of Technology Press, 125–132.
Paliulionienė, L. 2014. A rule-based method for comparison of SLAs in service-oriented computing. In: V., Strahonja; N., Vrček; D., Plantak Vukovac; Ch., Barry; M., Lang; H., Linger; Ch., Schneider (Eds.). Proceedings of the 23rd International Conference on Information Systems Development (ISD2014 Croatia), Information System Development: Transforming Organizations and Society through Information Systems. September 2–4, 2014, Varaždin, Croatia. Varaždin: University of Zagreb, 194–201.
International Science Programmes and Projects
European joint programme Eurostars programme project Production Effectiveness Navigator(No. E!6232 PEN; agreement No. 31V-20/LSS-580000-360 to fund the project by Agency for Science, Innovation and Technology). Prof. Dr. A. Čaplinskas, Assoc. Prof. Dr. A. Lupeikienė. 2011–2014.
The concept of an ensemble of collaborating algorithms was proposed for advanced planning and scheduling (APS) systems theory. The main idea suggested is that APS systems should be designed by combining the collaboration patterns, such as hierarchical, incremental, iterative, and implemented by an ensemble of collaborating algorithms.
Main publications:
Lupeikienė, A., Dzemyda, G., Kiss, F., Čaplinskas, A. 2014. Advanced planning and scheduling systems: modelling and implementation challenges. Informatica, vol. 25, no. 4, 581–616.
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
University of Latvia (Latvia)
Tallinn University of Technology (Estonia)
University of Maribor (Slovenia)
University of Geneva (Switzerland)
University of Frankfurt (Germany)
OTHER SCIENTIFIC ACTIVITIES
Prof. Dr. S. Gudas –
- editorial board member of the journal Transformations in Business and Economy, http://www.transformations.khf.vu.lt/about/board;
- editorial board member of the journal Informacijos mokslai, http://www.vu.lt/leidyba/lt/mokslo-zurnalai/informacijos-mokslai/redakcine-kolegija;
- program committee member of the 20th international conference on Information and Software Technologies (ICIST 2014), Druskininkai, Lithuania, October 9–10, 2014, http://icist.if.ktu.lt/index.php/ICIST/pages/view/Chairs&Commitee.
Prof. Dr. A. Čaplinskas –
- editorial board member of the journal Informatica, http://www.mii.lt/informatica/editors.htm;
- editorial board member of the Baltic Journal of Modern Computing, http://www.bjmc.lu.lv/editorial-board/;
- editorial board member of the Scientific Journal of Riga Technical University: Applied Computer Systems, https://ortus.rtu.lv/science/en/series/16;
- steering committee member of the annual East European Conference on Advances in Databases and Information Systems (ADBIS), http://adbis2014.finki.ukim.mk/index/steering-committee;
- steering committee member of the International Baltic Conference on Databases and Information Systems (BalticDB&IS), http://ati.ttu.ee/dbis2014/index.php?page=8;
- program committee member of the 18th East European Conference on Advances in Databases and Information Systems (ADBIS), Ohrid, Republic of Macedonia, September 7–10, 2014, http://adbis2014.finki.ukim.mk/index/program-committee;
- program committee member of the Central and Eastern European Conference on Software Engineering Conference in Russia (CEE-SECR 2014), Moscow, Russia, October 22–25, 2014, http://2014.secr.ru/lang/ru/about/program-committee;
- program committee member of the 6th international conference on Advanced Cognitive Technologies and Applications COGNITIVE 2014, Venice, Italy, May 25–29, 2014, http://www.iaria.org/conferences2014/ComCOGNITIVE14.html;
- program committee member of the 4th international conference on Business Intelligence and Technology (BUSTECH 2014), Venice, Italy, May 25–29, 2014, http://www.iaria.org/conferences2014/ComBUSTECH14.html;
- program committee member of the 20th international conference on Information and Software Technologies (ICIST 2014), Druskininkai, Lithuania, October 9–10, 2014, http://icist.if.ktu.lt/index.php/ICIST/pages/view/Chairs&Commitee;
- program committee member of the 15th international conference on Computer Systems and Technologies CompSysTech'14, Ruse, Bulgaria, June 27–28, 2014, http://www.compsystech.org/index.php?cmd=dPage&pid=pc;
- program committee member of the IADIS International Conference on Intelligent Systems and Agents 2014, Lisbon, Portugal, July 15–17, 2014, http://isa-conf.org/oldconferences/2014/committees;
- program committee member of the 7th Workshop on Information Logistics and Knowledge Supply (ILOG 2014), Lund, Sweden, September 22–24, 2014, http://www.informatik.uni-rostock.de/lehrstuhl_fuer_wirtschaftsinformatik/win_research/konferenzenworkshops/ilog2014;
- program committee member of the 26th international conference on Advanced Information Systems Engineering (CAiSE‘14), Thessaloniki, Greece, June 16–20, 2014, http://delab.csd.auth.gr/caise2014/committees/program.php;
- program committee member of the 23rd international conference on Information Systems Development (ISD 2014), Varaždin, Croatia, September 2–4, 2014, http://isd2014.foi.hr/index.php#committees;
- program committee member of the 7th IFIP WG 8.1 Working Conference on the Practice of Enterprise Modeling (PoEM 2014), Manchester, UK, November 12–13, 2014, http://poem2014.org/programme-committee;
- program committee member of the 11th international Baltic Conference on Databases and Information Systems (BalticDB&IS‘2014), Tallinn, Estonia, June 8–11, 2014, http://ati.ttu.ee/dbis2014/index.php?page=8;
- program committee member of the 2nd international Pospelov Symposium on Hybrid and Synergetic Artificial Intelligence Systems (GISIS‘2014), Svetlogorsk, Russia, June 30–July 6, 2014, http://www.raai.org/news/arch_news/2014/01/GISIS-2014_1_inf_let.pdf;
- program committee member of 6th international workshop on Data Analysis Methods for Software Systems (DatAMSS), Druskininkai, Lithuania, December 4–6, 2014, http://www.mii.lt/datamss/index.php?page=organizers&lang=en;
- Doctor honoris causa, University of Latvia, 2014.
Prof. Dr. D. Dzemydienė –
- editorial board member of the journal Applied Computer Systems, https://ortus.rtu.lv/science/en/series/16;
- program committee member of the 11th international Baltic Conference on Databases and Information Systems (BalticDB&IS‘2014), Tallinn, Estonia, June 8–11, 2014, http://ati.ttu.ee/dbis2014/index.php?page=8.
Assoc. Prof. Dr. A. Lupeikienė –
- editorial board member of the journal Informatica, http://www.mii.lt/informatica/editors.htm;
- editorial board member of the journal Applied Computer Systems, https://ortus.rtu.lv/science/en/series/16;
- steering committee member of the International Baltic Conference on Databases and Information Systems (BalticDB&IS), http://ati.ttu.ee/dbis2014/index.php?page=8;
- program committee member of the 11th International Baltic Conference on Databases and Information Systems (BalticDB&IS’2014), Tallinn, Estonia, June 8–11, 2014, http://ati.ttu.ee/dbis2014/index.php?page=8;
- program committee member of the 23rd international conference on Information Systems Development (ISD 2014), Varaždin, Croatia, September 2–4, 2014, http://isd2014.foi.hr/index.php#committees.
Dr. S. Maskeliūnas –
- program committee member of the 11th International Baltic Conference on Databases and Information Systems (BalticDB&IS‘2014), Tallinn, Estonia, June 8–11, 2014, http://ati.ttu.ee/dbis2014/index.php?page=8;
- chairman of 6th International Workshop on Data Analysis Methods for Software Systems (DatAMSS), Druskininkai, Lithuania, December 4–6, 2014, http://www.mii.lt/datamss/index.php?page=organizers&lang=en;
- chairman of the Council of the Lithuanian Computer Society, http://www.liks.lt/en/modules/tinycontent/index.php?id=3.
Prof. Habil. Dr.S. Jukna –
- scientific board member of ECCC, Electronic Colloquium on Computational Complexity, http://eccc.hpi-web.de/colloquium/scientific_board/;
- editorial board member of the Lithuanian Mathematical Journal, http://www.mii.lt/index.php?siteaction=pages.browse&page=lmj_an&lang=en.
Assoc. Prof. Habil. Dr. R. Pliuškevičius –
- editorial board member of the Lithuanian Mathematical Journal, http://www.mii.lt/index.php?siteaction=pages.browse&page=lmj_an&lang=en;
- member of American Mathematical Society.
DEPARTMENT OF STOCHASTIC PROCESSES
4 Akademijos, LT-08663 Vilnius
Tel. 210 9317
E-mail:
Head – Prof. Habil. Dr. Donatas Surgailis
STAFF
Chief research fellows: Prof. Habil. Dr. D. Surgailis, Prof. Habil. Dr. A. Dubickas, Prof. Dr. L. Giraitis (associated scientist), Prof. Habil. Dr. R. Leipus, Prof. Dr. R. Mikulevičius (associated scientist), Prof. Habil. Dr. R. Norvaiša, Prof. Habil. Dr. A. Račkauskas.
Senior research fellows: Dr. A. Astrauskas, Prof. Habil. Dr. B. Grigelionis, Dr. M. Manstavičius, Dr. M. Vaičiulis, Dr. J. Šiaulys.
Research fellow: Dr. R. P. Gylys.
Junior research fellows: V. Characiejus, D. Puplinskaitė, A. Zinevičius.
Technicians: J. Damarackas, E. Ignatavičiūtė, G.Valiukevičius, J. Zinkevičienė.
Doctoral students: Š. Dirmeikis I. Grublytė R. Malukas, V. Pilipauskaitė A. Škamulis.
RESEARCH INTERESTS
Statistical inference for long memory processes
Modelling financial data
Long range dependence
Heavy tails
Aggregation
Random fields
Self-similar processes
Levy processes
Rough paths
Concrete functional calculus
Stochastic partial differential equations
Random Hamiltonians
States on Girard algebras
Insurance mathematics
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Investigation of Fractal Properties of Random Proceses and Random Fields. Prof. R. Norvaiša, Prof. D. Surgailis. 2012–2014.
The existence and uniqueness in Hoelder spaces of classical solutions of the Cauchy problem to parabolic integro-differential equations of the order 0< α < 2 is investigated. The principal part of the operator is non differentiable and the obtained result is optimal.
The asymptotical formula for the number of reducible integer polynomials of degree d and of naive height at most T when T→∞ is derived, improving earlier results by van der Waerden, Pólya and Szegö, Dörge, Chela, and Kuba.
Main publications:
Mikulevičius, R., Pragarauskas, H. 2014. On the Cauchy problem for integro-differential operators in Hölder classes and the uniqueness of the martingale problem. Potential Analysis, vol. 40, 539–563.
Dubickas, A. 2014. On the number of reducible polynomials of bounded naive height. Manuscripta Mathematica,vol.144, 439–456.
National Research Projects
Research Council of Lithuania. Concrete Functional Calculus and Probability Theory: New Methods and Their Applications. Prof. R. Norvaiša, 2012–2014.
The central limit theorem for a weighted power variation of a fractal nonstationary Gaussian process is proved.
Main publications:
Malukas, R., Norvaiša, R. 2014. A central limit theorem for a weighted power variation of a Gaussian process. Lithuanian Mathematical Journal, vol. 54, 323–344.
Nonlinear Long Memory, Heavy Tails and Aggregation (no. MIP-063/2013). Prof. D. Surgailis. 2013–2015.
We discuss joint temporal and contemporaneous aggregation of N independent copies of random-coefficient AR(1) process when N and time scale n increase at different rate. Assuming that the coefficient has a probability density, regularly varying at the unit root with exponent -1<β<1, different joint limits of normalized aggregated partial sums are shown to exist when N^{1/(1+β)}/n tends to (i) ∞, (ii) 0, (iii) 0<µ<∞. The intermediate process arising under (iii) is studied in detail.
Main publications:
Pilipauskaitė, V., Surgailis, D. 2014. Joint temporal and contemporaneous aggregation of random-coefficient AR(1) processes. Stochastic Processes and Their Applications, vol. 124, 1011–1035.
Philippe, A., Puplinskaitė, D., Surgailis D. 2014. Contemporaneous aggregation of triangular array or random-coefficient AR(1) processes. Journal of Time Series Analysis, vol. 35, 16–39.
OTHER SCIENTIFIC ACTIVITIES
Prof. Habil. Dr. A. Dubickas –
- editorial board member of the Uniform Distribution Theory;
- editorial board member of the Central European Journal of Mathematics;
- editorial board member of the Conference Papers in Mathematics;
- editorial board member of the Lithuanian Mathematical Journal;
- editorial board member of the Šiauliai Mathematical Seminar;
- organizing committee member of the of Palanga conference in Combinatorics andNumber Theory , Palanga, Lithuania, September 1−7, 2013.
Prof. Habil. Dr. B. Grigelionis –
- editorial board member of the Lithuanian Mathematical Journal;
- editorial board member of the Nonlinear Analysis: Modelling and Control.
Prof. Habil. Dr. R. Norvaiša –
- managing editor of the Lithuanian Mathematical Journal;
- Associate editor or the North-Western European Journal of Mathematics.
Prof. Habil. Dr. R. Leipus –
- editorial board member of the Lithuanian Mathematical Journal;
- editorial board member of the Pinigų studijos (Monetary Studies);
- Chairman of Organizing Committee of the 11th international Vilnius Conference on Probability Theory and Mathematical Statistics, 30 June– 4 July, 2014, Vilnius, Lithuania.
Prof. Habil. Dr. D. Surgailis –
- associate editor of the Lithuanian Mathematical Journal;
- visiting professor at Department of Statistics and Probability, Michigan State University, USA, April, 2013;
- Invited speaker of the conference Workshop on Stochastic Processes, Aarhus, Denmark, April 22–23, 2014.
Prof. Dr. J. Šiaulys –
- editorial board member of the Lithuanian Mathematical Journal.
DEPARTMENT OF SYSTEMS ANALYSIS
4 Akademijos, LT-08663 Vilnius
Tel. 210 9300, fax 272 9209
E-mail:
Head – Prof. Dr. Habil. Gintautas Dzemyda
STAFF
Chief research fellows: Prof. Habil. Dr. G. Dzemyda, Prof. Habil. Dr. J. Mockus, Prof. Dr. Habil. L. Sakalauskas, Prof. Dr. Habil. A. Žilinskas.
Senior research fellows: Assoc. Prof. Dr. O. Kurasova, Assoc. Prof. Dr. S. Minkevičius, Dr. V. Marcinkevičius, Dr. D. Ettore Otera, Dr. V. Čyras, Dr. T. Meškauskas, Dr. M. Puida.
Affiliated research fellows: Prof. Habil. Dr. A. Garliauskas, Prof. Dr. A. Pakštas, Dr. A. Mockus, Dr. S. Steišūnas.
Research fellows Assoc. Prof. Dr. I. Belov, Dr. J. Bernatavičienė, Dr. J. Gordevičius, Dr. R. Karbauskaitė, Dr. V. Medvedev, Dr. P. Treigys, Dr. S. Dapkūnas, Dr. K. Lapin.
Junior research fellows: Dr. D. Baronas, Dr. A. Igumenov, G. Bazilevičius, N. Galiauskas, G. Gimbutienė, T. Grigalis, V. Jančauskas, K. Koncevičius, M. Mackevičius, A. Rapečka, P. Stefanovič.
Postdoctoral research fellows: Dr. E. Filatovas, Dr. A. Voroneckas.
Specialists and engineering staff: V. Tiešis, Dr. L. Ringienė, Dr. G. Jakimauskas, M. Girnis, J. Katina, M. Ramanauskas, M. J. Bilinskas, S. Meškauskienė, L. Mikalauskienė, M. Sabaliauskas, K. Urbanavičius, A. Bučelienė, P. Gibas.
Doctoral students: E. Artemčiukas, G. Bazilevičius, M. Jurgis Bilinskas, D. Bykovas, A. Gimbutas, G. Gimbutienė, V. Jakštys, V. Jančauskas, R. Jurevičius, K. Mikėnas, K. Paulauskienė, N. Pozniak, T. Pranckevičius, R. Rybnikonė, M. Sabaliauskas, G. Stabingis, J. Stašionis, D. Stumbrienė, D. Tamašauskas, J. Tichonov, J. Zubova.
RESEARCH INTERESTS
Analysis of large data sets
Artificial neural networks
Creation and computational realization of complex simulation models in epidemiology, education, economics, and energy supply systems and of various other origin with uncertainty
Data mining
Developement of decision support systems
Bioinformatics
Geometric group theory and geometric topology
Global optimization methods
Image analysis, feature detection, image reconstruction, medical image processing
Internet data mining
Local optimization methods
Medical data analysis and decision support
Multiple criteria decision support
Operations research
Optimal control applications
Parallel computing
Visualisation of multidimensional data
Web service development
Monte-Carlo method, Stochastic Programming, Queueing Theory, Operations Research
RESEARCH PROJECTS CARRIED OUT IN 2014
Projects Supported by University Budget
Optimal Solutions in Data Mining Tasks. Prof. Habil. Dr. G. Dzemyda. 2014–2016.
The volumes and diversity of data are rapidly increasing in our days. Optimization, visualization and simulation methods for specific data (biomedical, financial, visual etc.) help us to analyze and take decisions. However there is a need to get new knowledge from existing data. Therefore it is necessary to develop new hybrid data mining and optimization methods that can help you to find and reveal an important new knowledge. Parallel computing is also an important tool for these challenges.
New genetic algorithm for solving vehicle routing problems has been developed and investigated; new genetic algorithm for solving vehicle routing problems has been developed and investigated; efficient optimization algorithms are theoretically substantiated in the case of „expensive“, „black box“ objective functions; efficiency of the use of the geodesic distances in the intrinsic dimensionality estimation of the data using packing numbers is investigated.
Main publications:
Vaira, G., Kurasova, O. 2014. Genetic algorithm for VRP with constraints based on feasible insertion. Informatica, vol. 25, no. 1, 505–521.
Mockus, J., Katin, I., Katina, J. 2014. On the optimization of investment strategies in the context of virtual financial market by the individual approach to risk. Informatica, vol. 25, no. 2, 241–264.
Žilinskas A., Calvin, M.J. 2014. On a global optimization algorithm for bivariate smooth functions. Journal of Optimization Theory and Applications,vol. 163, no. 2, 528–547.
Karbauskaitė, R., Dzemyda, G. 2014. Geodesic distances in the intrinsic dimensionality estimation using packing numbers. Nonlinear analysis: Modelling and Control, vol. 19, no. 4, 578–591.
Study and Application of Statistical Simulation and Stochastic Programming to Computer Network Design. Prof. Dr. Habil. L. Sakalauskas. 2013–2015.
The stochastic algorithm for association rules discovery in large data sets, which has many applications in warehousing, has been developed. The algorithm gives conclusions about association rules using analysis of randomly selected subsequences. The developed algorithm was tested by computer modelingalgorithm
The issues of analysis of queueing systems, arising in the network theory and communications theory, called multiphase queueing systems, tandem queues or series of queueing systems, have been studied. The multiphase queueing systems can be useful for modelling practical multi-stage service systems in a variety of disciplines, especially on manufacturing, computer networking, and in telecommunications, etc. The research presented heavy traffic limit theorems for the cumulative idle time in multiphase queues. In this work, functional limit theorems are proved for the values of important probability characteristics of the queueing system.
National Research Projects
Research Council of Lithuania. Methods and Algorithms of Non-Convec Multi-Objective Optimization (No. MIP-063/2012) Prof. Dr. Habil. A. Žilinskas. 2012–2014.
New multi-objective optimization methods for non-convex objhectives are proposed and their efficiency evaluated by means of solving tests and practical problems.
Main publications:
Zilinskas, A. 2014. A one-step worst-case optimal algorithm for bi-objective univariate optimization. Optimization Letters, vol.8, 1945–1960,
doi: 10.1007/s11590-013-0712-8.
Calvin, J., Žilinskas, A. 2014. On a global optimization algorithm for bivariate smooth functions. Journal of Optimization Theory and Applications, vol.163, 528–547.
Žilinskas, J., Goldengorin, B., Pardalos, P.M. 2014. Pareto-optimal front of cell formation problem in group technology. Journal of Global Optimization, doi:10.1007/s10898-014-0154-6.
Research Council of Lithuania. Groups of Geometry (No. MIP-046/2014) Dr. D. Otera. 2014–2016.
Asymptotic topology of manifolds and quasi-isometry invariants of discrete groups. Main topics: simple connectivity at infinity, geometric simple connectivity, quasi-simple filtration (QSF), Tucker property, and the easy inverse representations. The main goal is to show that all groups are easily representable.
Research Council of Lithuania. Identification of Epigenetic Markers for Early Diagnosis of Colorectal Cancer (No. MIP-043/2014) Dr. J. Gordevičius. 2014–2016.
In this project we propose to perform data analysis of epigenetic profiles in blood circulating DNA to detect epigenetic biomarkers for early CRC diagnosis. Our goal is to apply novel algorithmic methods that will reveal epigenetic aberrations in extended regions when comparing cancer patients to controls. The detected regions will be used to train machine learning algorithms and to build and evaluate an early diagnostic CRC classifier. The bioinformatics analysis conducted in this project may provide novel, non-invasive markers, with the potential for translation into clinical practice.
Research Council of Lithuania. European Union Structural Funds project Postdoctoral Fellowship Implementation in Lithuania within the framework of the Measure for Enhancing Mobility of Scholars and Other Researchers and the Promotion of Student Research (VP1-3.1-ŠMM-01) of the Program of Human Resources Development Action Plan. Post doctoral research fellow J. Gordevičius (No. 004/11/ MTDS-580000-401) Prof. Dr. Habil. G. Dzemyda. 2012–2014.
Novel algorithmic methods are developed for analysis of human methylome datasets obtained from whole genome tiling arrays or next generation sequencing.
Research Council of Lithuania. European Union Structural Funds project Postdoctoral Fellowship Implementation in Lithuania within the framework of the Measure for Enhancing Mobility of Scholars and Other Researchers and the Promotion of Student Research (VP1-3.1-ŠMM-01) of the Program of Human Resources Development Action Plan. Post doctoral researcher E. Filatovas (No. 004/56/ MTS-580000-318) Prof. Dr. Habil. G. Dzemyda. 2013–2015.
Creation of the new hybrid methods combining interactive methods and evolutionary multiobjective optimization algorithms. Development of the techniques for visualizing Pareto front when solving multiobjective optimization problems.
Research Council of Lithuania. European Union Structural Funds project Postdoctoral Fellowship Implementation in Lithuania within the framework of the Measure for Enhancing Mobility of Scholars and Other Researchers and the Promotion of Student Research (VP1-3.1-ŠMM-01) of the Program of Human Resources Development Action Plan. Post doctoral researcher A. Varoneckas (No. 004/61/ MTS-580000-323) Prof. Dr. Habil. A. Žilinskas. 2013–2015.
European social fund agency Theoretical and Engineering Aspects of e-Service Technology Development and Application in High-performance Computing Platforms (No. VP1-3.1-ŠMM-08-K-01-010). Prof. Dr. Habil. G. Dzemyda. 2012–2015.
Main publications:
Kurasova, O., Marcinkevičius, V., Medvedev, V., Rapečka, A., Stefanovič, P. 2014. Data mining in big data era: methods and technologies. Proceedings of the 6th international workshop Data Analysis Methods for Software Systems,p. 33.
Stefanovič, P., Kurasova, O. 2014. Creation of text document matrices and visualization by self-organizing map. Information Technology and Control, vol. 43, no. 1, 37–46.
Kurasova, O., Marcinkevičius, V., Medvedev, V., Rapečka, A., Stefanovič, P. 2014. Strategies for big data clustering. ICTAI 2014: 2014 IEEE. Proceedings of the 26th international conference on Tools with Artificial Intelligence, 740–747.
Project of EU Structural funds economic growth action program’s priority “Information Society for All” implementation tool “Lithuanian language in the information society” Creation of the Website Providing Integral Resources, Products and Services of the Lithuanian Language and its Writing (No. VP2-3.1-IVPK-12-K-01-003). Dr. V. Marcinkevičius. 2012–2015.
Information system designated to store resources of Lithuanian language and to provide these resources to users through web browsers, web services and mobile applications will be developed.
International Research Projects
COST action Big Data Era in Sky and Earth Observation TD1403. Member of Managing Committee Assoc. Prof. Dr. Olga Kurasova. 2014–2018, http://www.cost.eu/COST_Actions/TDP/Actions/TD1403
Eurostars joint programme project Production Effectiveness Navigator (No. E!6232 PEN implementation. No. 31V-5/LSS-580000-741), (Eurostars programme). Prof. Dr. Habil. G. Dzemyda. 2011–2014.
The requirement report and reference model of the PEN system have been corrected. Some heuristic rescheduling algorithms have been developed according to event driven views. They will be implemented in PEN prototype and will be used in order to identify, estimate and optimize the consequences of planned changes related to the products, resources and process. Deterministic algorithms, which could be implemented in the PEN system, are also reviewed.
Main publications:
Bernatavičienė, J., Kurasova, O., Marcinkevičius, V., Medvedev, V., Podgorni, P., Treigys, P. 2014. Deterministic methods for a production effectiveness navigator. BalticJjournal of Modern Computing, vol. 2, no. 1, 1–15; http://www.bjmc.lu.lv/fileadmin/user_upload/lu_portal/projekti/bjmc/Contents/2_1_1_Bernataviciene.pdf.
Tiešis, V., Dzemyda, G., Kizil, T. 2014. Heuristic reactive rescheduling algorithms in the advanced scheduling Add-on for ERP. Baltic Journal of Modern Computing, vol. 2, no. 4, 272–284; http://www.bjmc.lu.lv/fileadmin/user_upload/lu_portal/projekti/bjmc/Contents/2_4_6_Tiesis1.pdf
MAIN R&D&I (RESEARCH, DEVELOPMENT AND INNOVATION) PARTNERS
University College London (UK)
Poznan Supercomputing and Networking Center (Poland)
Middle East Technical University, Ankara (Turkey)
Vilniaus University Institute of Oncology (Lithuania)
Sapienza University, Rome (Italy)
OTHER SCIENTIFIC ACTIVITIES
Prof. Dr. Habil. G. Dzemyda –
- member of programme committees of the following International conferences:
- international conference on Operations Research and Enterprise Systems (ICORES 2014), http://www.icores.org/;
- international conference on Psychological Computing Systems (PhyCS 2014), www.phycs.org ;
- chairman of the 6th international workshop Data Analysis Methods for Software Systems, Druskininkai, Lithuania, December 4–6, 2014, http://www.mii.lt/DatAMSS/;
- co-Editor-in-Chief of the Baltic Journal of Modern Computinghttp://www.lu.lv/baltic-journal-of-modern-computing/;
- editorial board member of the international journal Informatica (IOSPress/VU), executive editor, http://www.mii.lt/Informatica/editors.htm;
- editorial board member of Eastern and Central Europe Journal Informatics in Education, http://www.mii.lt/informatics_in_education/editors.htm;
- editorial board member of the Journal of Civil Engineering and Management, http://www.jcem.vgtu.lt/en/?page=2&sub=RED_KOLEGIJA;
- editorial board member of the Nonlinear Analysis; Modelling and Control, deputy-editor-in-chief, http://www.mii.lt/NA/;
- international editorial board member of the Vestnik BSU. Series 1. Physics. Mathematics. Informatics,http://www.bsu.by/en/main.aspx?guid=208151;
- editorial board member of the journal Mokslas ir technika, http://www.mokslasirtechnika.lt/;
- member of the Lithuanian Academy of Sciences, http://lma.lt/index.php?option=com_k2&view=item&layout=item&id=235&Itemid=243&lang=lt;
- member of IFIP Technical Committee 12 Artificial Intelligence, http://www.ifiptc12.org.uk/ifiptc12/members.php;
- board member of Transportation Science and Information Technologies at the Ministry of Transport and Communications of the Republic of Lithuania;
- board member of Military Science and Technologies at the Ministry of Defence of the Republic of Lithuania;
- member of Lithuanian Academy of Sience, http://lma.lt;
- member of Lithuanian Computer Society, http://www.liks.lt/;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/;
- member of Lithuanian Operational Research Society, http://www.mii.lt/LitORS/ .
Prof. Habil. Dr. L. Sakalauskas –
- editorial board member of the journal Technological and Economic Development of Economy,http://www.tandf.co.uk/journals/journal.asp?issn=2029-4913&linktype=145;
- elected member of International Statistical Institute; http://isi-web.org/;
- member of Managerial Board of EURO Working Group on Stochastic Programming, www.mii.lt/EWGSP;
- member of European Working Group on Continuous Optimization, http://www.iam.metu.edu.tr/EUROPT/;
- president of Lithuanian Operational Research Society, http://www.mii.lt/LitORS/ ;
- chairman of the 6th Lithuanian OR Conference for young scientists, September 22, 2014, Vilnius, Lithuania, http://www.mii.lt/OT-2014.
Prof. Habil. Dr. A. Žilinskas –
- member of IFIP working group WG 7.6 Optimization-Based Computer Aided Modeling and Design, http://www.ifip.org/bulletin/bulltcs/memtc07.htm;
- member of American Mathematical Society, http://www.ams.org/cml;
- Member of programme committees of the international conferences:
- compSysTech 2014, Ruse, Bulgaria, June 27–28, 2014;
- international conference of Numerical Analysis and Applied Mathematics, Rhodes, Greece, September 22–28, 2014;
- 7th Workshop on Computational Optimization, Warsaw, Ploland, 2014 September 7–10;
- editorial boards member of the international journals:
- Journal of Global Optimization (Springer), http://www.springer.com/business+%26+management/operations+research/journal/10898?detailsPage=editorialBoard;
- Control and Cybernetics, http://control.ibspan.waw.pl:3000/mainpage/index;
- Informatica (IOSPress/VU), http://www.mii.lt/Informatica/editors.htm;
- Journal of Intelligent Learning Systems and Applications, http://www.scirp.org/journal/jilsa/;
- International Journal of Grid and High Performance Computing, http://www.igiglobal.com/Bookstore/TitleDetails.aspx?TitleId=1105&DetailsType=ReviewBoard;
- The Open Cybernetics and Systemics Journal, http://www.bentham.org/open/tocsj/EBM.htm;
- Baltic Journal of Modern Computing, http://www.bjmc.lu.lv/editorial-board/;
- member of the Lithuanian Academy of Sciences, http://lma.lt; http://lma.lt/index.php?option=com_k2&view=item&layout=item&id=235&Itemid=243&lang=lt;
- board member of Constantin Caratheodory Prize 2015.
Prof. Habil. Dr. J. Mockus –
- member of the Lithuanian Academy of Sciences, http://lma.lt/index.php?option=com_k2&view=item&layout=item&id=235&Itemid=243&lang=lt;
- editor-in-chief of international journal Informatica (IOSPress/VU), http://www.mii.lt/Informatica/editors.htm;
- editorial board member of the international Journal of Global Optimization (Springer), http://www.springer.com/business+%26+management/operations+research/journal/10898?detailsPage=editorialBoard ;
- editorial board member of the Scientific World Journal (Hindawi), http://www.hindawi.com/journals/tswj/editors/operations.research/;
- member of American Mathematical Society http://www.ams.org/cml;
- member of IFIP Technical Committee WG 7.7 Stochastic Optimization, http://www.ifip.org/bulletin/bulltcs/memtc07.htm.
Prof. Habil. Dr. A. Garliauskas –
- member of Lithuanian Science Society Council, http://www.lms.lt/;
- chair person of Informatics Department of Lithuanian Science Society, http://lms.lt/?q=en/society/browse/22;
- member of Intelligent Systems Research Laboratory at the College of Engineering, http://www.engr.usask.ca/;
- member of Special Interest Group on Nonlinear Dynamics (SIG/NL), http://www.acm.org/sigs;
- member of Neuroscience Special Interest Group (SIG), http://www.inns.org/sig/;
- member of ABI research advisory board, http://www.abiworldwide.com/.
Assoc. Prof. Dr. I. Belovas –
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/ .
Assoc. Prof. Dr. O. Kurasova –
- editorial boards member of the international journals:
- Nonlinear Analysis: Modelling and Control, http://www.mii.lt/NA/;
- Baltic Journal of Modern Computing, http://www.lu.lv/baltic-journal-of-modern-computing/editorial-board/;
- Computational Science and Techniques,http://journals.ku.lt/index.php/CST/about/editorialTeam;
- member of Council of Lithuanian Computer Society, http://www.liks.lt/en/modules/tinycontent/index.php?id=3;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/ ;
- member of Lithuanian Operational Research Society, http://www.mii.lt/LitORS/ .
Assoc. Prof. Dr. S. Minkevičius –
- reviewer of international journal Mathematical Modelling and Analysis (Taylor & Francis);
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/ .
Dr. J. Bernatavičienė–
- managing Co-editor of Baltic Journal of Modern Computing, http://www.bjmc.lu.lv/editorial-board/;
- member of Lithuanian Computer Society (Artificial Intelligence Section), http://www.liks.lt/;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/ ;
- member of Lithuanian Operational Research Society, http://www.mii.lt/LitORS/.
Dr. E. Filatovas –
- member of Council of Lithuanian Computer Society, http://www.liks.lt/en/modules/tinycontent/index.php?id=3;
- INFOBALT scholarships to young scientists (2014).
Dr. R. Karbauskaitė –
- managing editor of Informatica (IOSPress/VU), http://www.mii.lt/informatica/instruct.htm.
Dr. V. Marcinkevičius -
- member of Council of Lithuanian Computer Society, http://www.liks.lt/en/modules/tinycontent/index.php?id=3;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/;
- member of Lithuanian Operational Research Society, http://www.mii.lt/LitORS/.
Dr. V. Medvedev –
- member of Council of Lithuanian Computer Society, http://www.liks.lt/en/modules/tinycontent/index.php?id=3;
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/ ;
- member SERVICE COMPUTATION 2014 Technical Program Committee, http://www.iaria.org/conferences2014/ComSERVICECOMPUTATION14.html.
Dr. D. Otera –
- member of the Italian geometers group G.N.S.A.G.A, http://www.altamatematica.it/gnsaga/;
- member of the Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/.
V. Tiešis –
- member of Lithuanian Mathematical Society, http://www.mif.vu.lt/lmd/.