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Mathematical Models, Methods and Algorithms for Solving Difficult Optimization Problems for Achieving High Security in Communications and Better Economic Sustainability

Project № КП-06-Н 52/7 from 19.11.2021, Funding from National Science Fund of Bulgaria - Ministry of Education and Science, Project Coordinator Prof. Vassil Guliashki

Events

Thesis defense for obtaining a doctoral degree of Aida Bitri, held at TU-Sofia on 08.11.2022.

The project, as part of the participation of the Scientific Research Fund, was presented at the thirteenth edition of the Sofia Science Festival 2023, which took place in the "John Atanasov" building of the Sofia Tech Park between May 11 - 14, 2023.
The Sofia Science Festival is a forum where the achievements of fundamental and applied science and technology are presented by leading Bulgarian and international researchers in discussions, demonstrations, hands-on workshops for schools and adults, and interdisciplinary events linking the sciences with art.

Certificates

(First stage 2021 - 2023)

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Publications

(First stage 2021 - 2023)

  1. Guliashki, V., Marinova, G.: Adaptive IIR Filtering for System Identification applying the method by Nelder and Mead. In: International Conference on Systems, Signals and Image Processing (IWSSIP 2021), Bratislava, Slovakia. Rozinaj, G., Vargic, R. (eds.), Proceedings: Communications in Computer and Information Science, vol. 1527, pp. 71-81. ISSN: 1865-0929, ISSN: 1865-0937 (electronic), eBook ISBN 978-3-030-96878-6, Print ISBN 978-3-030-96877-9. Springer, Cham (2022). (SJR(Q4) = 0.209)
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  2. Stoyanova, K., Guliashki, V.: Assets migration by means of solving of portfolio optimization. In: Prof. Dr. Erol Kurt (editor) Proceedings of European conference on renewable energy systems, 07-09. May 2022 (ECRES 2022), pp. 635-640, ISBN: 978-605-70842-0-0, Istanbul, Turkey. Status: published; Indexing: EBSCO (2022).
  3. Guliashki, V., Marinova, G.: An Approach for Coefficients Optimization in Adaptive Filter Signal Equalization. In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing, June 01 - 03, 2022 (IWSSIP 2022), pp. 1-4, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
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  4. Stoyanova, K., Guliashki, V.: Group drop of sustainability: Trade-off Solutions between low returns and portfolio stability. In: Proceedings of the Interdisciplinary Conference on Mechanics, Computers and Electrics (ICMECE 2022), 6-7 October 2022, Barcelona, Spain. Status: published; Indexing: EBSCO (2022).
  5. Stoyanova, K., Balabanov, T.: A combination of Broyden-Fletcher-Goldfarb-Shanno (BFGS) and bisection method for solving portfolio optimization problems. In: Proceedings of the 8th International Conference on Engineering and Emerging Technologies (ICEET 2022), 27-28 October 2022, Kuala Lumpur - Malaysia. Status: published; Indexed in: IEEE Xplore (2022).
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  6. Guliashki, V., Borissova, D., Marinova, G.: A Decision-Making Approach for Improvement of Energy Flows Stability in Microgrids In: Larry Stapleton, Peter Kopacek (eds.) Proceedings of 21. IFAC International Conference on International Stability, Technology and Culture (TECIS 2022), October, 26-28, 2022, Prishtina, Kosovo. IFAC-PapersOnLine, Editor: Peter Kopacek, Volume 55, Issue 39, Elsevier, ISSN: 2405-8963, pp. 408-412 (2022). (SJR (Q3) = 0.354)
  7. Guliashki, V., Marinova, G.: Efficient Energy Management in a Microgrid. In: Proceedings of International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom 2022), July 12th – 14th, 2022, Graz, Austria, paper CoBCom 2022 1570802321, pp. 1-5. Status: published, Indexed in: IEEE Xplore (2022).
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  8. Guliashki, V., Marinova, G., Bitri, A.: Data Analytics, Viability Modeling and Investment Plan Optimization of EDA Companies in Case of Disruptive Technological Event. In: Kohei Arai (editor) Proceedings of the Future Technologies Conference (FTC 2022), October, 20-21, 2022, Lecture Notes in Networks and Systems, vol. 559, pp. 669-680, ISSN 2367-3370. Vancouver, Canada (2022). (SJR (Q4) = 0.151)
  9. Mankolli, E.: Reducing the complexity of candidate selection using Natural Language Processing In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing (IWSSIP 2022), June 01 - 03, 2022, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
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  10. Naka, E., Guliashki, V.: B-VPL: A Binary Volleyball Premier League optimization algorithm for Feature Selection. In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing, June 01 - 03, 2022 (IWSSIP 2022), pp. 1-4, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
  11. Marinova, G., Bitri, A.: Assessment and forecast of EDA company viability in case of disruptive technological events. In: MATHMOD 2022 Discussion Contribution Volume:“10th Vienna International Conference on Mathematical Modelling”, Vienna, Austria, July 27-29, 2022, ARGESIM Report 17 (ISBN 978-3-901608-95-7), pages 33-34. Status: published, Indexing: SCOPUS, Argesim reports (2022).
  12. Marinova, G., Malaj, E., Ibro, M.: Hardware Solution for Cybersecurity of Unmanned Systems Critical Infrastructure. In: NATO Science for Peace and Security Series, Subseries D: Information and Communication Security, Vol. 63, ISSN: 1874-6268 (print), 2022, pp. 127-138 (2022).
  13. Music, G., Tomazic, S., Logar, V.: Distance learning of programmable logic control: an implementation example In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing (IWSSIP 2022), June 01 - 03, 2022, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
  14. Borissova, D., Dimitrova, Z., Dimitrov, V., Yoshinov, R., Naidenov, N.: Digital Transformation and the Role of the CIO in Decision Making: A Comparison of Two Modelling Approaches. In: Saeed, K., Dvorsky, J. (eds), Computer Information Systems and Industrial Management (CISIM 2022), Lecture Notes in Computer Science, vol. 13293, pp. 93-106, Springer, Cham (2022). (SJR (Q2) = 0.41)
  15. Borissova, D., Buhtiyarov, N., Yoshinov, R., Garvanova, M., Garvanov, I.: Integrated Models-Driven Framework to Generate Various Online and Print Tests. In: Saeed, K., Dvorsky, J. (eds), Computer Information Systems and Industrial Management (CISIM 2022), Lecture Notes in Computer Science, vol. 13293, pp. 316–329, Springer, Cham (2022). (SJR (Q2) = 0.41)
  16. Borissova, D., Danev, V., Garvanova, M., Garvanov, I., Yoshinov, R.: Key indicators to measure student performance in IoT and their teamwork ability. In: Auer, M.E., Tsiatsos, T. (eds.) New Realities, Mobile Systems and Applications (IMCL 2021). Lecture Notes in Networks and Systems, vol 411, pp.711-720, Springer, Cham (2022). (SJR (Q4) = 0.151)
  17. Borissova, D., Danev, V., Rashevski, M., Garvanov, I., Yoshinov, R., Garvanova, M.: Using IoT for Automated Heating of a Smart Home by Means of OpenHAB Software Platform. IFAC-PapersOnLine, vol. 55(11), pp. 90-95 (2022). (SJR (Q3) = 0.354)
  18. Borissova, D., Ivanova, T., Buhtiarov, N., Naidenov, N., Rasheva-Yordanova, K., Yoshinov, R., Garvanova, M., Garvanov, I.: Application of Information Technology in the Teaching of Mathematics when Study of 2D Geometric Shapes. In: 45th Jubilee International Convention on Information, Communication and Electronic Technology (MIPRO 2022), Opatija, Croatia, pp. 638-643. Status: published, Indexed in: IEEE Xplore (2022).
  19. Borissova, D., Dimitrova, Z., Dimitrov, V.: Assessing of Energy Consumption Balance Index Formed by Various Combinations of Conventional and Renewable Sources. In: 4th 2022 IEEE Sustainable Power and Energy Conference (iSPEC), Perth, Australia, 4 – 7 December 2022, pp. 1-5. Status: published, Indexed in: IEEE Xplore (2022).
  20. Borissova, D., Dimitrova, Z., Naidenov, N., Yoshinov, R.: Integrated approach to assessing the progress of digital transformation by using multiple objective and subjective indicators. In: Guizzardi, R., Ralyte, J., Franch, X. (eds.) Research Challenges in Information Science (RCIS 2022), Lecture Notes in Business Information Processing, vol. 446, pp. 626–634, Springer, Cham (2022). (SJR (Q3) = 0.347)
  21. Borissova, D., Keremedchieva, N.: Decision Support Approach in Evaluating the Parameters of Books for Digital Manufacturing. In: Rocha A., Ferras C., Mendez Porras A., Jimenez Delgado E. (eds.) Information Technology and Systems (ICITS 2022) Lecture Notes in Networks and Systems, vol 414, pp. 165-174, Springer, Cham (2022). (SJR (Q4) = 0.151)
  22. Kirilov, L., Mitev, Y.: Key Performance Indicators to Improve e-Mail Service Quality through ITIL Framework. In: Fidanova, S. (eds.) Recent Advances in Computational Optimization (WCO 2021), Studies in Computational Intelligence, vol. 1044, pp. 79-93, Springer, Cham (2022). (SJR (Q4) = 0.209)
  23. Fidanova, S., Atanassov, K., Kirilov, L., Slavova, V., Ivanov, V.: Generalized Net Model of the Consequences of Earthquake. Proceedings of the Second International Symposium on Bioinformatics and Biomedicine (BioInfoMed’2022), Ocober 5-7, 2022, Burgas, Bulgaria, Springer (2022).
  24. Kirilov, L., Bournaski, E., Iliev, R.: A Base Model for Water Balance of Mesta River Watershed. Comptes rendus de l’Académie bulgare des Sciences vol. 75(12), 1796-1804. Prof Marin Drinov Publishing House of BAS, 2022, ISSN: 1310-1331 (2022). (SJR (Q3) = 0.19), (JCR-IF (Web of Science) = 0.329)
  25. Balabanov, T., Stoyanova, K.: R Programming for Data Science for Absolute Beginners., LAP Lambert Academic Publishing, 66 pages, ISBN: 978-620-5-49915-3 (2022).
  26. Mateeva, G., Parvanov, D., Dimitrov, I., Iliev, I., Balabanov, T.: Android Content Providers in Mobile Distributed Computing. In: Proceedings of the International Conference (ELECTRONICA 2022) (2022). Certificate
  27. Stoyanova, K., Balabanov, T.: A combination of Broyden-Fletcher-Goldfarb-Shanno (BFGS) and bisection method for solving portfolio optimization problems. In: Proceedings of the 8th International Conference on Engineering and Emerging Technologies (ICEET 2022), 27-28 October 2022, Kuala Lumpur - Malaysia (2022).
  28. Petrov, I.: Multi-criteria selection of industrial robots: modelling users' preferences in combined AHP-Entropy-TOPSIS. In: Proceedings of the 5th Imernational Conference on Computing and Informatics (ICCI 2022), March 9-10, 2022, Cairo, Egypt. Status: published; Indexed in: SCOPUS / IEEE Xplore (2022).
  29. Petrov, I.: MCDM for renewable energy projects: criteria weighting with traditional entropy and novel hierarchy in combination with conventional and structured in blocks AHP approaches. In: Proceedings of the 9th Iranian Conference on Renewable Energy & Distri'buted Generation (ICREDG 2022), 23-24 February 2022, Mashhad, Iran. Status: published, Indexed in: SCOPUS / IEEE Xplore (2022).
  30. Malaj, E. G., Ibro, M., Marinova, G.: Experimental setup for Hardware Encryption logic evaluation for e-learning. In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing (IWSSIP 2022), June 01 - 03, 2022, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
  31. Ibro, M., Marinova, G.: Hardware Encryption logic on FPGA and Power Consumption. In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing (IWSSIP 2022), June 01 - 03, 2022, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
  32. Ibro, M., Marinova, G.: Literature review on FPGA-based e-learning: power consumption design methodologies perspective. In: Proceedings of 29-th IEEE International Conference on Systems, Signals and Image Processing (IWSSIP 2022), June 01 - 03, 2022, Sofia, Bulgaria. Status: published, Indexed in: IEEE Xplore (2022).
  33. Dimitrova, Z., Borissova, D., Mikhov, R., Dimitrov, V.: Group Decision-Making Involving Competence of Experts in Relation to Evaluation Criteria: Case Study for e-Commerce Platform Selection. In: Simian, D., Stoica, L.F. (eds) Modelling and Development of Intelligent Systems. MDIS 2022. Communications in Computer and Information Science, vol 1761, pp. 42-53, Springer, Cham (2022). (SJR (Q4) = 0.194)
  34. Fidanova, S., Atanassov, K., Kirilov, L., Slavova, V., Ivanov, V.: Generalized Net Model of the Consequences of Earthquake. In: Lecture Notes in Networks and Systems, vol. 658 pp. 281-292, Springer 2023, ISBN:978-3-031-31068-3, ISSN:2367-3370 (2023). (SJR (Q4) = 0.151)
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  35. Guliashki, V., Mušič, G.: A Constructive Heuristic "MDSA" solving the Flexible Job Shop Scheduling Problem. In: Arai, K. (eds) Intelligent Computing, SAI 2023. Lecture Notes in Networks and Systems, vol. 739, Springer, Cham. pp. 296-306, ISSN 2367-3370, ISSN 2367-3389 (electronic), ISBN 978-3-031-37962-8, ISBN 978-3-031-37963-5 (eBook) (2023). (SJR (Q4) = 0.151)
  36. Myasnichenko, V. S., Sokolov, D. N., Sdobnyakov, N. Yu., Ershov, P. M., Nepsha, N. I., Veselov, A. D., Mikhov, R., Kirilov L.: Adaptation of the Monte-Carlo Method for Modeling Layer-by-Layer Growth of Clusters and Nanoalloys. In: St. Petersburg Polytechnic University Journal - Physics and Mathematics, Vol. 16. No. 1.1, pp. 225 – 230. ISSN 2304-9782, ISSN 2618-8686, ISSN 2405-7223, Publisher: Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russian Federation (2023). (SJR (Q4) = 0.128)
  37. Borissova, D., Dimitrova, Z., Keremedchieva, N.: Software Application to Assist the Publishing Sector: A Tool in MS Excel Environment. In: Rocha, Á., Ferrás, C., Ibarra, W. (eds), Chapter in Information Technology and Systems, ICITS 2023. Lecture Notes in Networks and Systems, vol 692. Springer, Cham, pp. 457-467 (2023). (SJR (Q4) = 0.151)
  38. Buhtiyarov, N., Borissova, D.: An Approach for Visualizing SVG Sprites Systems. In: Rocha, Á., Ferrás, C., Ibarra, W. (eds), Chapter in Information Technology and Systems, ICITS 2023. Lecture Notes in Networks and Systems, vol 692. Springer, Cham, pp. 397-407 (2023). (SJR (Q4) = 0.151) award
  39. Borissova, D., Barzev, I., Yoshinov, R., Kotseva, M.: Group Decision-Making Models for Selection of Virtual Machine Software for Malware Detection Purposes. In: Proc. of 12th Mediterranean Conference on Embedded Computing (MECO), Budva, Montenegro. Status: published, Indexed in: IEEE Xplore (2023).
  40. Bankovska M., Borissova, D., Rasheva-Yordanova, K.: Model for Assessing e-Learning Courses Considering Multiple Visual and Technical Indicators. In: 46th MIPRO ICT and Electronics Convention (MIPRO), Opatija, Croatia, pp. 560-565. Status: published, Indexed in: IEEE Xplore (2023).
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  41. Guliashki, V., Mušič, G., Marinova, G.: A heuristic algorithm for aircraft landing scheduling problem. IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace), Milano, Italy, 19-21.06.2023, In: IEEE MetroAeroSpace 2023 Proceedings, pp. 253-257, ISBN: 978-1-6654-5689-0, IEEE Catalog Number: CFP2332W-USB (2023). Status: published, Indexed in: IEEE Xplore (2023).
  42. Marinova, G., Guliashki, V., Hajrizi, E.: Energy consumption optimization in a smart university campus microgrid. International Balkan Conference on Communications and Networking (BalkanCom), İstanbul, Turkiye, June 5-8, 2023, pp. 1-6. Status: published, Indexed in: IEEE Xplore (2023).
  43. Naka, E.: Review of Metaheuristic Algorithms in Feature Selection based on Parkinson Disease. In: Proceedings of IAFA 2023, Eleventh International Workshop on “Interdisciplinary approaches in fractal analysis” (24th Conference on Control Systems and Computer Science), May 24-26, 2023, Bucharest, Romania. Status: published, Indexed in: IEEE Xplore (2023).
  44. Nuzi, A., Guliashki, V.: A Survey on Optimization Methods in Business Information Systems. In: Proceedings of IAFA 2023, Eleventh International Workshop on “Interdisciplinary approaches in fractal analysis” (24th Conference on Control Systems and Computer Science), May 24-26, 2023, Bucharest, Romania. Status: published, Indexed in: IEEE Xplore (2023).
  45. Stoyanova, K., Balabanov, T.: Optimal Selection of Pharma Stock Portfolios using DEPSO. In: Proceedings of 24th International Carpathian Control Conference (ICCC’23), June 12-14, 2023, Miskolc-Szilvásvárad, Hungary, pp. 419-422. Status: published, Indexed in: IEEE Xplore (2023).
  46. Zeneli, M., Marinova, G.: Erecting pillars in a direction of a smart, innovative and energy efficient port. In: Proceedings of 30-th IEEE International Conference on Systems, Signals and Image Processing “IWSSIP 2023”, June 27-29, 2023, Ohrid, North Macedonia. Status: to appear, Indexed in: IEEE Xplore (2023).
  47. Marinova, G., Guliashki, V., Chikov, O.: MCDA approaches for automatic tool selection in a cloud-based online-CADCOM platform. In: 17th International Conference on Telecommunications - ConTEL, July 11-13, 2023, Graz, Austria. Status: to appear, Indexed in: IEEE Xplore (2023).
  48. Guliashki, V., Kirilov, L., Nuzi, A.: Optimization Models and Strategy Approaches to Dealing with Economic Crises, Natural Disasters and Pandemics. In: Cybernetics and Information Technologies (CIT), ISSN (print): 1311-9702, ISSN (online): 1314-4081. Status: submitted, (2023). (SJR(Q2) = 0.464, IF = 1.2)