About
I am a PhD student at Boston University and a member of Massive Data, Algorithms, and Systems Group Lab,
advised by Prof. Evimaria Terzi.
I completed my undergraduate studies at the National Technical University of Athens (NTUA),
where I worked with Prof. Dimitris Fotakis.
My research interests span the fields of Algorithms and Machine Learning,
with a focus on Submodular Optimization and Online Combinatorial Optimization.
I am also deeply interested in exploring Team Formation and Team Dynamics,
aiming to understand how groups can be effectively structured and how they evolve.
In the past, I have worked on Learning-Augmented Online Algorithms,
blending classical online algorithm design with modern machine learning techniques.
Publications
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Understanding Team Collapse via Probabilistic Graphical Models (KDD '25)
I. Nikolaou, K. Pelechrinis, E. Terzi
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Team Formation amidst Conflicts (WebConf '24, oral presentation)
I. Nikolaou, E. Terzi
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Online Submodular Optimization via Online Convex Optimization (AAAI '24)
T. Si-Salem, G. Özcan, I. Nikolaou, E. Terzi, S. Ioannidis
Current projects
- Online Two-Stage Submodular Maximization: offline two-stage submodular maximization extension to the online setting. Applications in recommender systems, document summarization and team formation.
- Online Submodular Maximization with no Φ-Regret: introducing the concept of Φ-Regret in the context of online submodular maximization. Novel algorithms for multi-agent games with submodular utilities.
- Team Dynamics via Flow Networks: modeling team architecture using flow networks. Experiments on advanced basketball data from the NBA.