Computer scientist (MSc Computer Science, Georgia Tech; Computational Perception & Robotics concentration) working on aviation data, machine learning and EU aviation and digital policy in Brussels.
Policy Officer at the European Commission (DG MOVE). Previously State Liaison Officer of Cyprus to EUROCONTROL and Alternate Member of the EASA Management Board (2021–2026). Repositories here are personal or research projects unless stated otherwise; views are my own.
| Project | What it is | My role |
|---|---|---|
| PRCXGBoost | Fuel-burn prediction for the EUROCONTROL PRC Data Challenge 2025: XGBoost on ADS-B trajectories, METAR weather and OpenAP physics-derived features, Optuna tuning. Team bright-lobster (KIOS CoE, University of Cyprus, with DCA Cyprus). One of the two team solutions published in the JOAS special issue on the challenge. The published model scores RMSE 214.9 kg on the official blind test sets (paper, Table 12); our scored final submission was erroneous, so the official final ranking is 11th of 33 finalists. | Co-developer, co-author of the JOAS paper |
| AIXM-Parser | Python library and browser viewer for AIXM 4.5 aeronautical data (airspaces, sectors, routes). | Author |
| ddfn_v2 | Research prototype of decentralised demand and capacity balancing (ATFM) over publish/subscribe messaging. FastAPI, WebSockets, Leaflet. | Author |
| presshub | WordPress plugin that integrates several LLM providers (OpenAI, Anthropic, Gemini/Vertex AI) with an LLM-based editorial quality score, rate limiting and CI-tested PHP/TypeScript code. | Author |
| AeroDeck | General-purpose agentic workflow framework for Google Antigravity. Began as a port of obra/superpowers (MIT, © Jesse Vincent) and has been generalised beyond software development. I added MCP servers (Playwright browser automation, Google Workspace, multi-provider model router), background scheduling, a Telegram supervision bridge and new skills for research, documents, email and data work. | Author of the extensions; maintainer |
| FuelCost | Dash/Plotly model of the cost impact of Fit for 55 measures (ReFuelEU SAF mandate, EU ETS, energy taxation) on airline routes. | Author |
| AirConnectivity | Weighted PageRank air-connectivity indicator on EUROCONTROL R&D flight data. | Author |
Earlier work: Twitter-Scraper (extended fork of GetOldTweets-python, used for the social-media research below) and airplane-detection (OpenCV Haar cascades, 2015).
- Grigoriou, Y., Eftychiou, E., Vitale, C., Pettemeridis, G., Souli, N., & Kolios, P. (2026). A physics-guided gradient boosting framework for open-source aviation fuel estimation. Journal of Open Aviation Science, 4(3). https://doi.org/10.59490/joas.2026.8764
- Avraamidou, M., & Eftychiou, E. (2022). Migrant racialization on Twitter during a border and a pandemic crisis. International Communication Gazette, 84(3), 227–251. https://doi.org/10.1177/17480485211054301
- Avraamidou, M., Ioannou, M., & Eftychiou, E. (2021). "Innocent" hashtags? A cautionary tale: #IStandWithGreece as a network of intolerance on Twitter during a land border crisis. International Journal of Communication, 15, 2849–2869.
- Avraamidou, M., Şahin, S., & Eftychiou, E. (in press). (Elite) monologues on social media during Cyprus' peace negotiations: How X/Twitter promotes elites' perspectives in divided societies. Media, War & Conflict.
Python (pandas, scikit-learn, XGBoost, Optuna), TypeScript/Node.js, PHP, SQL, C/C++ · LLM APIs (OpenAI, Anthropic, Gemini), LlamaIndex, Model Context Protocol · FastAPI, Dash/Plotly, Docker, GitHub Actions
- MSc Computer Science, Georgia Institute of Technology (2018); BSc Electrical Engineering (Computer Engineering concentration), Hofstra University (2002, Fulbright scholar)
- Software engineer and team leader on real-time payment systems (TSYS, 2004–2009)
- Licensed air traffic controller, Paphos (2009–2016)
- Attaché for aviation, space, telecoms and cyber, Permanent Representation of Cyprus to the EU (2016–2021)
- State Liaison Officer of Cyprus to EUROCONTROL; Alternate Member, EASA Management Board (2021–2026)
- Policy Officer, European Commission, DG MOVE (2026–)