Iurii Krak is a Professor and Doctor of Phys.-Math. Sciences at the Taras Shevchenko National University of Kyiv , leading the Theoretical Cybernetics Department . He serves as a Senior Researcher Fellow (part-time) at the Glushkov Institute of Cybernetics and is a Corresponding Member in Informatics at the National Academy of Sciences of Ukraine . Education: M.Sc. in Cybernetics (1980), PhD (1987), Doctor of Phys.-Math. Sciences (1999) Roles: Visiting Professor at Lublin University of Technology (2008-2019), Chalmers University (2002), and others His research spans Artificial Intelligence, Robotics, Sign Language Recognition, and Medical Informatics , with a focus on 3D human modeling, emotional state analysis, and gesture synthesis. Recent work explores augmentative communication , big data analysis , and human-computer interfaces . Publications highlight mathematical optimization in robotics, sign language modeling, and intelligent decision-making systems. Scientific honors include membership in the National Academy of Sciences of Ukraine. Collaborations include institutions in Sweden, Poland, and Kazakhstan.