About
I am a PhD student in Computer Science at Boston University and a member of the
Massive Data, Algorithms, and Systems Group,
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 lies at the intersection of algorithms and machine learning, with a particular focus on
submodular optimization and online combinatorial optimization.
I am also interested in problems related to team formation and team dynamics, with the goal of understanding
how groups can be structured effectively and how they evolve over time.
In the past, I have worked on learning-augmented online algorithms, combining classical online algorithm design
with modern machine learning techniques.
Publications
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Online Two-Stage Submodular Maximization (NeurIPS '25)
I. Nikolaou, M.Stouras, S.Ioannidis, E. Terzi
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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
Experience
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Meta Platforms, Inc. — Software Engineer PhD Intern
Team: Ranking & Foundational AI -
Meta Platforms, Inc. — Software Engineer PhD Intern
Team: Ranking & Foundational AI; worked on LLMs for recommender systems. -
KTH Royal Institute of Technology — Research Intern
Worked with Prof. Aristides Gionis on opinion formation models for alignment and polarization. -
Amazon — Software Development Engineer Intern
Worked on back-end development for Amazon Simple Email Service (SES) and tools for automated ticket investigation.