All Stories

  1. Inverse Copula Sampling for Multi-Dimensional Data Synthesis

    Article • July 2026, MDPI AG

    Angel Marchev

  2. Validating Synthetic Data for Behavioral Modeling

    Article • December 2025, ACM (Association for Computing Machinery)

    Angel Marchev

  3. Testing the Case of Knapsack-like Portfolio Optimization Using Various Evolutionary Algorithms

    Article • October 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  4. Revisiting and Improving the NEAT Algorithm

    Article • October 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  5. METHODOLOGICAL IMPLEMENTATION OF CRISP-DM IN FINTECH SERVICES

    Article • Journal of Management Sciences and Applications, June 2025, University of National and World Economy

    PhD Vasil Marchev, Angel Marchev

  6. Data Expansion by Business-Logic Scaling—an Applied Approach for Data Synthesis

    Article • June 2025, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  7. Discrete monitoring and valuation of path-dependent options under nonstandard hypothesis: Barrier options

    Article • January 2025, American Institute of Physics

    Angel Marchev

  8. Testing the unidimensionality of risk perception: An empirical study using Cronbach’s Alpha on online surveys

    Article • January 2025, American Institute of Physics

    Angel Marchev

  9. Reasoning capabilities of large language models on information extracted from databases using Text-to-SQL

    Article • January 2025, American Institute of Physics

    Angel Marchev

  10. Methodology for cold-start modeling using synthetic data

    Article • January 2025, American Institute of Physics

    PhD Vasil Marchev, Angel Marchev

  11. Anonymizing Personal Information Using Distribution-Based Data Synthesis

    Article • January 2025, Springer Science + Business Media

    Angel Marchev

  12. Testing the NEAT Algorithm on a PSPACE-Complete Problem

    Article • January 2025, Springer Science + Business Media

    Angel Marchev

  13. Methodological Considerations for Anonymizing Tabular Data Using Generative Adversarial Networks

    Article • October 2024, ACM (Association for Computing Machinery)

    PhD Vasil Marchev, Angel Marchev

  14. Individualized Fin-Tech Investment Services

    Article • Journal of Global Strategic Management, December 2023, Journal of Global Strategic Management

    PhD Vasil Marchev, Angel Marchev

  15. Automated Algorithm for Multi-variate Data Synthesis with Cholesky Decomposition

    Article • October 2023, ACM (Association for Computing Machinery)

    PhD Vasil Marchev, Angel Marchev

  16. Sofia Bus Schedules Get a High-Tech Upgrade

    Article • January 2023, American Institute of Physics

    Angel Marchev

  17. Innovative On-demand Public Transportation in Sofia - an Overview of the Algorithmic Tasks

    Article • May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Kamen Boyanov Spassov, Angel Marchev

  18. Evolution of the Concept of Self-Organization by the Founding Fathers of A.I.

    Article • May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  19. Synthesizing multi-dimensional personal data sets

    Article • January 2022, American Institute of Physics

    Angel Marchev, PhD Vasil Marchev

  20. Predicting Travel Times for On-demand Public Transport in Sofia

    Article • IFAC-PapersOnLine, January 2022, Elsevier

    Angel Marchev

  21. Prediction of the Air Pollution by Geo-locations in Sofia

    Article • IFAC-PapersOnLine, January 2022, Elsevier

    Angel Marchev

  22. Self-organization types for autonomous investment portfolio

    Article • September 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  23. A step beyond the Monte Carlo method in economics: Application of multivariate normal distribution

    Article • January 2015, American Institute of Physics

    Angel Marchev

  24. Autonomous portfolio investment by multi-stage selection procedure

    Article • January 2014, American Institute of Physics

    Angel Marchev

  25. Computer simulation environment for comparative analysis of models for investment portfolio management

    Article • January 2013, American Institute of Physics

    Angel Marchev

  26. Investment portfolio management from cybernetic point of view

    Article • January 2013, American Institute of Physics

    Angel Marchev

  27. Multi-stage selection procedure for investment portfolio management

    Article • October 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev

  28. Cybernetic approach to selecting models for simulation and management of investment portfolios

    Article • October 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Angel Marchev