Petar Zhivkov, PhD, is a Senior Assistant Professor at the Institute of Information and Communication Technologies, Bulgarian Academy of Sciences. His research develops AI and computational methods for complex adaptive systems, with a focus on multi-agent behavior, network and market risk, trustworthy AI, and decision-making under uncertainty. He uses artificial neural networks, machine learning, agent-based simulation, optimization, econometrics, and global sensitivity analysis. His work spans LLM-agent markets, cryptocurrency market microstructure and blockchain mechanisms, and environmental intelligence, including air-quality sensor calibration and health-impact modelling. He holds a PhD in Computer Science from IICT-BAS and MSc degrees in Computational Science from TU Delft and Engineering from UACEG. He has also led R&D and product teams in digital finance and environmental technology, connecting reproducible research with real-world systems.