Department „Modelling and Optimization"
Institute of Information and Communication Technologies – BAS

Assist. Prof. Dr. Todor Dimitrov Balabanov

Informatics and Computer Science

Decision support an optimization models, methods and systems

• 2017 – IICT-BAS, Doctor in "Informatics and Computer sciences".
• 1998 - 2010 - Technical University, Sofia, Bachelor of Computer Systems and Technologies.
• 2006 - 2008 - New Bulgarian University, Informatics Department, Master of Internet Software Technologies.
• 2002 - 2006 - New Bulgarian University, Informatics Department, Bachelor of Informatics.
• 1993 - 1998 - Technological School Electronic Systems (TSES), TU-Sofia, Specialist of Software Support

Books and practical guides

Todor Balabanov, Zornitsa Atanasova, Rumen Ketipov, Statistical Data Processing with R, Education & Knowledge, 2019, ISBN: 978-619-7515-17-6

Todor Balabanov, Iliyan Zankinski, Petar Tomov. "Scientific Computations with Java and Android. Practical guide." (pdf) Lecture Notes in Computer Science and Technologies , No.8, IICT-BAS, 2018, eISSN: 2367-8666, eISBN: 978-619-7320-05-3, pp.216. pp.216.

Todor Balabanov.Programming in Android. Practical guideПрограмиране на Android (pdf) . Lecture Notes in Computer Sciences and Technologies, No.6, IICT-BAS, 2016, eISSN: 2367-8666, eISBN: 978-619-7320-02-2, pp.83.

"Многоезична интегрирана среда за разработка на приложения Eclipse", "За буквите - О писменехь", ISBN 978-619-185-101-0, 2014

Publications in journals and proceedings at international conferences:

Stoyanova к., Balabanov T.. Optimal Selection of Pharma Stock Portfolios using DEPSO. Proceedings of 24th International Carpathian Control Conference 2023, 2023, 427-430

Mateeva, G., Parvanov, D., Dimitrov, I., Iliev, I., Balabanov, T.. Time-Consuming Fitness Functions Approximation for Genetic Algorithms Performance Improvement. IXth SWS Conference on Social Sciences (ISCSS) 2022, Extended Sessions “When Science Meets ART”, 6 - 9 December 2022, Vienna, Austria, sgemvienna.org, 2022, ISBN:978-3-903438-04-0, ISSN:2682-9959, DOI:10.35603/sws.iscss.2022/s04.053

Mateeva, G., Parvanov, D., Balabanov, T.. DNA-INSPIRED GENETIC ALGORITHM MODIFICATION. Proceedings of 21st INTERNATIONAL INDUSTRIAL SIMULATION CONFERENCE ISC'2023, EUROSIS-ETI, 2023, ISBN:978-9-492859-26-6, 27-31

Angelova, V., Balabanov, T., Popchev, I.. On the sensitivity estimation of the symmetric matrix Riccati differential equation. Comptes rendus de l’Academie bulgare des Sciences, 75, 11, Prof. Marin Drinov Academic Publishing House, 2022, ISSN:1310-1331, DOI:10.7546/CRABS.2022.11.11, 1638-1646. SJR (Scopus):0.32, JCR-IF (Web of Science):0.19

Balabanov, T.. Genetic Algorithms Performance Improvement in Slowly-Calculated Fitness Functions. Proceedings of International Scientific Conference UNITECH 2022, 1, University Publishing House Vasil Aprilov, 2022, ISSN:1313-230X, 255-259

Balabanov, T.. Libre Calc Performance in Optimization of Multidimensional Non-Linear Functions. Proceedings of International Scientific Conference UNITECH 2022, 1, University Publishing House Vasil Aprilov, 2022, ISSN:1313-230X, 260-264

Dineva, K., Atanasova, T., Balabanov, T. CLOUD DATAFLOW FOR MACHINE LEARNING MODELING ON IOT DATA IN SMART LIVESTOCK FARMING. 22nd International Scientific Multidisciplinary Conference on Earth and Planetary Sciences SGEM 2022, 22, 6.1, SGEM World Science (SWS) Society, Vienna, Austria, 2022, ISBN:978-619-7603-48-4, ISSN:1314-2704, DOI:10.5593/sgem2022/6.1/s25.09, 73-80. SJR (Scopus):0.217

Mateeva, G., Parvanov, D., Balabanov, T.. Searching Optimal Solutions for Multidimensional Nonlinear Functions in LibreOffice. Extended Abstracts of 17th Annual Meeting of the Bulgarian Section of SIAM, December 20 – 22, 2022 (BGSIAM 2022) Sofia, Bulgaria, Fastumprint, 2022, ISSN:1313-3357, 26-28

Mateeva, G., Parvanov, D., Dimitrov, I., Iliev, I., Balabanov, T.. An Efficiency of Third Party Genetic Algorithms Software Libraries in Mobile Distributed Computing for Financial Time Series Forecasting. Proceedings of 2022 International Conference Automatics and Informatics (ICAI), IEEE, 2022, ISBN:978-1-6654-7626-3, DOI:10.1109/ICAI55857.2022.9960128, 351-354

Mateeva, G., Parvanov, D., Dimitrov, I., Iliev, I., Balabanov, T.. Android Content Providers in Mobile Distributed Computing. Proceedings of 2022 13th National Conference with International Participation (ELECTRONICA), IEEE, 2022, ISBN:978-1-6654-8101-4, DOI:10.1109/ELECTRONICA55578.2022.9874360

Stoyanova, K., Balabanov, T.. A combination of Broyden-Fletcher-Goldfarb-Shanno (BFGS) and bisection method for solving portfolio optimization problems. Proc. of the 8th International Conference on Engineering and Emerging Technologies (ICEET) 27-28 October 2022, Kuala Lumpur, Malaysia, IEEE, 2022, ISBN:978-1-6654-9107-5, ISSN:2409-2983, DOI:10.1109/ICEET56468.2022.10007369

Balabanov, T.. Estimation of Volatility based on the Estimation of Segmentation. Problems of Engineering Cybernetics and Robotics, 77, 2021, ISSN:2738-7356, DOI:10.7546/PECR.77.21.01, 3-10

Balabanov, T.. Pareto Front Estimation with a Heuristic Single-Objective Solver. Proceedings of International Scientific Conference UNITECH 2021, 1, Университетско издателство “Васил Априлов” – Габрово, 2021, ISSN:1313-230X, 235-23

Balabanov, T.. Solving Multi-Objective Problems by Мeans of Single Objective Solver. Problems of Engineering Cybernetics and Robotics, 76, 2021, ISSN:2738-7356, DOI:10.7546/PECR.76.21.05, 63-70

Balabanov, T.. Volatility Index Estimation by Reverse Engineering. Proceedings of International Scientific Conference UNITECH 2021, 1, Университетско издателство “Васил Априлов” – Габрово, 2021, ISSN:1313-230X, 229-234

Blagoev, I., Balabanov, T., Iliev, I. RSA Weaknesses Caused by the Specifics of Random Number Generation. Information & Security: An International Journal, 50, 2, Procon Ltd., 2021, ISSN:0861-5160, DOI:10.11610/isij.5028, 171-179

Mateeva, G., Parvanov, D., Balabanov, T. Differential Evolution and Particle Swarm Optimization Efficiency According to Pseudo-Random Number Generator Quality. Problems of Engineering Cybernetics and Robotics, vol. 76, 2021, ISSN 2738-7356, 39-46.

Balabanov, T. Solving Multi-Objective Problems by Мeans of Single Objective Solver. Problems of Engineering Cybernetics and Robotics, vol. 76, 2021, ISSN 2738-7356, 63-70.

Velichkova, V., Tomov, P., Balabanov, T. Incremental Sinusoidal Approximation of Time Series with LibreOffice Calc Solver, Problems of Engineering Cybernetics and Robotics, vol. 75, 2021, ISSN 2738-7356, 43-50.

Petrov, N., Balabanov, T., Petrov, I. For the National Security and the Risk as Probability Phenomenon, Science, education, intellect, vol. 12, 2021, ISSN 1314-717X, 88-99.

Petrov, P., Kostadinov, G., Zhivkov, P., Velichkova, V., Ivanov, S., Balabanov, T. Multi-Objective Optimization in Image Approximation. Proceedings of International Conference Automatics and Informatics, 2021, ISBN 978-1-7281-9309-0, 1-5.

Petrov, P., Kostadinov, G., Zhivkov, P., Velichkova, V., Balabanov, T. Approximated Sequences Reconstruction with Genetic Algorithms. Proceedings of 28th International Symposium Management of Energy, Industrial and Ecological Systems, 2020, ISSN 1313-2237, 63-66.

Balabanov, T., Zankinski, I., Tomov, P., Petrov, P, Kostadinov, G. Distributed Computing Cybersecurity in Donated Computing Resources For Evolutionary Algorithms. Proceedings of Scientific Conference Current Security Problems, 2020, ISSN 2367-7473, 697-704.

Petrov, P., Kostadinov, G., Zhivkov, P., Velichkova, V., Balabanov, T. Approximate Sequencing of Virtual Reels with Genetic Algorithms. Proceedings of the 23rd International Conference on Distributed Computer and Communication Networks: Control, Computation, Communications, 2020, ISBN 978-5-91450-248-2, 507-514.

Ketipov, R., Kostadinov, G., Petrov, P., Zankinski, I., Balabanov, T. Genetic Algorithm Based Formula Generation for Curve Fitting in Time Series Forecasting Implemented as Mobile Distributed Computing. Proceedings of High Performance Computing, vol. 902, 2020, ISBN 978-3-030-55347-0, 40-47.

Balabanov, T., Ivanov, S., Ketipov, R. Solving Combinatorial Puzzles with Parallel Evolutionary Algorithms. Proceedings of Large-Scale Scientific Computing Conference, vol. 11958, 2020, ISBN 978-3-030-41031-5, 493-500.

Zankinski, I., Kolev, K., Balabanov, T. Alternatives for Neighborhood Function in Kohonen Maps. Proceedings of Large-Scale Scientific Computing Conference, vol. 11958, 2020, ISBN 978-3-030-41031-5, 540-544.

Tomov, P., Zankinski, I., Balabanov, T. Genetic algorithm selection operator based on recursion and Brute-Force. Extended abstracts of Annual Meeting of the Bulgarian Section of SIAM, Fastumprint, 2019, ISSN 1313-3357, 93-93.

Tomov, P., Zankinski, I., Balabanov, T. Training of Artificial Neural Networks for Financial Time Series Forecasting in Android Service and Widgets. Problems of Engineering Cybernetics and Robotics, vol. 71, 2019, ISSN 1314-409X, 50-56.

Tomov, P., Zankinski, I., Balabanov, T. Server Side Vote Clustering in Human-Computer Distributed Computing. Information Technologies and Control, John Atanasoff Society of Automatics and Informatics, vol. 2, 2019, ISSN 2367-5357, 15-19.

Balabanov, T., Zankinski, I., Kolev, K. Multilayer Perceptron Training Randomized by Second Instance of Multilayer Perceptron. Extended abstracts of 13th Annual Meeting of the Bulgarian Section of SIAM, 2018, ISSN 1313-3357, 16-17.

Balabanov, T., Sevova, J., Kolev, K. Optimization of string rewriting operations for 3D fractal generation with genetic algorithms. Proceedings of International Conference on Numerical Methods and Applications, 2018, 48-54.

Balabanov, T., Atanasova, T., Blagoev, I. Activation Function Permutation for Multilayer Perceptron Training. Proceedings of International Conference on Big Data, Knowledge and Control Systems Engineering, John Atanasoff Union on Automatics and Informatics, 2018, ISSN:2367-6450, 9-14.

Balabanov, T., Blagoev, I., Atanassova, Z. Greedy Genetic Algorithm Hybrid Solution of 1D Stock Cutting Problem. Proceedings of International Scientific Conference UNITECH 2018, 2, University Publishing House Vasil Aprilov - Gabrovo, 2018, ISSN:1313-230X, 307-312.

Balabanov, T., Blagoev, I., Dineva, K. Self-Rising Tri Layers MLP for Time Series Forecasting. Proceedings of International Conference on Distributed Computer and Communication Networks, Springer Verlag, 2018, 577-584. SJR:0.17.

Balabanov, T., Ketipov, R., Atanassova, Z. MLP with Stochastic Manipulated Hidden Layer. Proc. of the International Scientific Conference - UNITECH 2018, 2, University Publishing House Vasil Aprilov - Gabrovo, 2018, ISSN:1313-230X, 324-328.

Balabanov, T., Zankinski, I., Ketipov, R. Weights Permutation in Multilayer Perceptron. Proceedings of International Conference on Big Data, Knowledge and Control Systems Engineering, “John Atanasoff” Union on Automatics and Informatics, Bulgaria, 2018, ISSN:2367-6450, 23-27.

Balabanov, T. Long Short Term Memory in MLP Pair. Proceedings of the International Scientific Conference UniTech 2017, Gabrovo, 17-18.11.2017, Vol. II, University publishing house V. Aprilov, 2017, ISSN:1313-230X, 375-379.

Todor Balabanov, Iliyan Zankinski, Maria Barova, Strategy for Individuals Distribution by Incident Nodes Participation in Star Topology of Distributed Evolutionary Algorithms, Cybernetics and Information Technologies, Volume 16, No 1, Sofia, 2016, pp.80-88. Print ISSN: 1311-9702, Online ISSN: 1314-4081, SJR 2015 = 0.170, SNIP 2015 = 0.425, IPP 2015 = 0.289

Balabanov, T., Keremedchiev, D., Goranov, I., Web Distributed Computing For Evolutionary Training Of Artificial Neural Networks. Proceedings of of the International Conference InfoTech-2016, Publishing House of Technical University - Sofia, 2016, ISSN:1314-1023, 210-216

Атанасова, Т. В., Барова, М. И., Балабанов, Т. Д., Използване на невронни модели за анализ на времеви редове в големи обеми от данни. Изд. комплекс на НВУ „Васил Левски”, 2016, ISSN:1314-1937, 193-198

Балабанов, Т., Генова, К., AJAX разпределена система за обучение на изкуствени невронни мрежи с еволюционни алгоритми. Сборник с доклади от XXIV Международен симпозиум Управление на топло енергийни обекти и системи, Управление на енергийни, индустриални и екологични системи, Съюз по автоматика и информатика "Джон Атанасов", 2016, ISSN:1313-2237, 49-52

Балабанов, Т., Генова, К.. Разпределена система за обучение на изкуствени невронни мрежи, базирана на мобилни устройства. Proceedings of INTERNATIONAL CONFERENCE АUTOMATICS AND INFORMATICS'2016, JOHN ATANASOFF SOCIETY OF AUTOMATICS AND INFORMATICS, 2016, ISSN:1313-1850, 49-52

Balabanov, T., Zankinski, I., Barova, M., Distributed Evolutionary Computing Migration Strategy by Incident Node Participation. Large-Scale Scientific Computing, Lecture Notes in Computer Science, 9374, Springer International Publishing, Switzerland, 2016, pp. 203 - 209, ISBN:978-3-319-26520-9, DOI:10.1007, SJR:0.339

Balabanov, T., Zankinski, I., Shumanov, B., Slot Machine RTP Optimization and Symbols Wins Equalization with Discrete Differential Evolution. Large-Scale Scientific Computing, Lecture Notes in Computer Science, 9374, Springer International Publishing, Switzerland, 2015, ISBN:978-3-319-26520-9, DOI:10.1007, SJR:0.339pp. 200 - 207

Balabanov, T., Distributed evolutional model for music composition by human-computer interaction. International Scientific Conference UniTech 2015 Gabrovo Proceedings, 2, University publishing house V. Aprilov - Gabrovo, ISSN:1313-230X,2015, pp.389 - 392

Балабанов, Т., Занкински, И., Шуманов, Б., Оптимизация на статистически модели с еволюция на разликите и Монте-Карло базирана оценъчна функция. Сборник с доклади от XXII Международен симпозиум Управление на енергийни, индустриални и екологични системи, 2015, ISSN:1313-2237, pp.87 - 90

Балабанов, Т., Избягване на локални оптимуми при евристични популационни алгоритми в разпределена среда. Сборник с доклади от XXII Международен симпозиум Управление на енергийни, индустриални и екологични системи, 2015, ISSN:1313-2237, pp.83 – 86

Avdzhieva A., Balabanov T., Evtimov G., Kirova D., Kostadinov H., Tsachev T., Zhelezova S., Zlateva N., Optimal Cutting Problem, 113th European Study Group with Industry, FASTUMPRINT, Sofia, Bulgaria, 2015, pp.49 - 61

Балабанов, Т., Популационни алгоритми за обучение на изкуствени невронни мрежи при игри с открити условия, Сборник с доклади на Първа национална тематична школа и борса за научни идеи в областта на информационните и комуникационни технологии, Издателски център при Русенски университет "Ангел Кънчев", 2013, pp.222 - 226

Balabanov, T., Zankinski, I., Dobrinkova, N., Time series prediction by artificial neural networks and differential evolution in distributed environment, Large-Scale Scientific Computing, Springer Berlin Heidelberg, 2012, pp.198 - 205

Балабанов, Т., Прогнозиране с евристични подходи в разпределена среда, Proceedings of Anniversary Scientific Conference 40 Years Department of Industrial Automation, UCTM-Sofia, 2011, pp.163 - 166

Балабанов, Т., Занкински, И., Валерия, С., Прогнозиране на времеви редове с изкуствени невронни мрежи и диференциална еволюция в разпределена среда, Работни статии на ИИТ, IIT/WP-268B, 2010

Teaching activity

• Information Services AD - Introduction of web development (HTML, CSS, PHP, MySQL) - Lecturer, October 2020 - December 2020
• BAS Training Center, Data Analysis with R - Lecturer, September 2020 - September 2020
• BAS Training Center, Data Analysis with R - Lecturer, March 2019 - March 2019
• UniBIT-Sofia - Mobile Application Development - Lecturer, February 2019 - February 2019
• BAS Training Center, Data Analysis with R - Speaker, November 2018 - November 2018
• BAS Training Center, Data Analysis with R - Lecturer, April 2018 - April 2018
• Information Services AD - MS Excel - Advanced, MS Excel - Advanced - Database Analysis with PIVOT TABLE, MS Access - Lecturer, September 2018 - December 2018
• Information Services AD - MS Excel - Advanced, MS Excel - Advanced - Database Analysis with PIVOT TABLE, MS Access - Lecturer, September 2018 - December 2018
• Information Services AD - MS-Access - Lecturer, September 2018 - December 2018
• Information Services AD - MS-Access - Lecturer, 2018 - December 2018
• Information Services AD - Windows 7 (MS Word 2010, MS Excel 2010) - Lecturer, September 2018 - December 2018
• Information Services AD - Windows 7 (MS Word 2010, MS Excel 2010) - Lecturer, September 2018 - December 2018
• UniBIT-Sofia - Mobile Applications - Lecturer, January 2018 - May 2018
• BAS Training Center, Data Analysis with R-Lecturer, November 2017 - November 2017
• UniBIT-Sofia - Mobile Application Development - Lecturer, November 2017 - November 2017
• UniBIT-Sofia - Mobile Applications, February 2017 - May 2017
• UniBIT-Sofia - Mobile Application Development - Lecturer, December 2017 - December 2016
• UniBIT-Sofia - Introduction to Electronic Games Design, October 2016 - December 2016
• Soft Intellect Ltd. - Java Programming, April 2016 - July 2016
• Soft Intellect Ltd. - Introduction to Java, January 2016 - March 2016
• Information Services JSC - Databases - Lecturer, December 2014 - January 2015
• Information Services AD - Web Development (HTML, CSS, JavaScript) - Lecturer, November 2014 - December 2014
• Information Services AD - Introduction to C\# Programming - Lecturer, October 2014 - November 2014
• NBU-Sofia - Introduction to Java Programming - Lecturer, October 2014 - January 2015
• NBU-Sofia - Internet Programming - Lecturer, October 2014 - January 2015
• UniBIT-Sofia - Java Programming - Assistant, October 2014 - December 2014
• UniBIT-Sofia - Introduction to Programming - Assistant, October 2014 - December 2014
• NBU-Sofia - Current Trends in Internet Technologies - Lecturer, February 2014 - June 2014
• NBU-Sofia - Java for Advanced Lecturer, February 2014 - June 2014
• Information Services AD - Databases - Lecturer, March 2014 - July 2014
• UniBIT-Sofia - Programming Environments - Lecturer, February 2014 - May 2014
• UniBIT-Sofia - Wireless and Mobile Computing - Lecturer, February 2014 - May 2014
• IUC-Sofia - Information systems project management - lecturer, October 2013 - February 2014
• IUC-Sofia - Information system in business - lecturer, October 2013 - February 2014
• NBU-Sofia - Introduction to Java Programming - Lecturer, October 2013 - January 2014
• NBU-Sofia - Internet Programming - Lecturer, October 2013 - January 2014
• UniBIT-Sofia - Java Programming - Assistant, October 2013 - December 2013
• UniBIT-Sofia - Introduction to Programming - Assistant, October 2013 - December 2013
• Information Services AD - Java Programming for Advanced - Lecturer, March 2013 - July 2013
• NBU-Sofia - Java for Advanced Lecturer, February 2013 - June 2013
• IUC-Sofia - System analysis, development \& design - lecturer, February 2013 - May 2013
• IUC-Sofia - Information system legislation - Lecturer, February 2013 - May 2013
• IUC-Sofia - E-business management - lecturer, February 2013 - May 2013
• IUC-Sofia - Introduction to Databases / Database Applications - Lecturer, December 2012 - February 2013
• IUC-Sofia - Intro to Multimedia and the Internet - lecturer, December 2012 - February 2013
• NBU-Sofia - Introduction to Java Programming - Lecturer, October 2012 - January 2013
• Information Services AD - Introduction to Java Programming - Lecturer, September 2012 - October 2012
• NBU-Sofia - Java for Advanced Lecturer, February 2012 - June 2012
• NBU-Sofia - Introduction to Java Programming - Lecturer, October 2011 - January 2012
• Asgore Ltd. - C Programming for Beginners - Lecturer, June 2011 - July 2011
• NBU-Sofia - Java for Advanced Lecturer, February 2011 - June 2011
• TUES-Sofia - Programming - Practice of Lecturer, February 2011 - June 2011
• St. Ariadne College - Communication Technology - Lecturer, March 2011 - June 2011
• St. Ariadne College - Internet and Web Design Programming - Lecturer, March 2011 - June 2011
• NBU - Introduction to Java programming - lector, October 2010 - January 2011
• TSES - Programming on ? - lector, September 2010 - January 2011
• NBU - Java for advanced - lector, February 2010 - June 2010
• TSES - Programming - practice on ? - lector, February 2010 - June 2010
• TSES- Programming for iPhone - lector, February 2010 - June 2010
• NBU - Introduction to Java programming - lector, October 2009 - January 2010
• TSES - Development of open source projects on the methodology Extreme programming - lector, October 2009 - January 2010
• TSES - Web programming with PHP and MySQL - lector, October 2009 - January 2010
• TSES - Programming on ? - lector, October 2009 - January 2010
• SPGE - Java for beginners - lector, February 2009 - June 2009
• TSES - Development of open source projects on the methodology Extreme programming - lector, February 2009 - June 2009
• Sofia University - Programming, data structure, files and objects, part I, assistant, February 2009 - June 2009
• Sofia University - Systems for e-business - assistant, February 2009 - June 2009
• NBU - Java for advanced - lector, February 2009 - June 2009
• Technical University - Programming Languages, assistant, October 2008 - January 2009
• Technical University - Programming and Computing, part 3, assistant October 2008 - January 2009