Short Bio

Dimitris graduated from the Athens University of Economics and Business as a software engineer, holds a MSc in Data Science, and is currently pursuing a PhD in LLMs and their interactions with humans. He has received full scholarships from the Huawei SFTF program, as well as his masters program. He helped organize and teach labs in the 2024 and 2025 AthNLP Summer Schools, and is a regular member of the “ML for humans” and “AUEB NLP” communities.

Research Interests

Dimitris focuses on scalably and efficiently using open-source technologies and LLMs to help online communities. Specifically, his research focuses on facilitating online discussions, detecting harmful speech aimed at vulnerable and minority groups, and defending online communities from organized, malicious, external threats.

PhD research on "Synthetic Moderation / Facilitation of Online Spaces using LLMs"
Abstract: Social media have become hostile spaces, where abuse, polarization and misinformation harm individuals and endanger democracy. Hostile LLM actors have also introduced online spaces to hybrid warfare. LLMs are the only scalable tool capable of helping online users. We use them to simulate users, in order to train LLM facilitators.