Excited to announce that I will be joining the W.P. Carey School of Business as an Assistant Professor of Information Systems in Fall 2025! Please reach out if you are interested in collaborating with me!

I am a rising fifth-year Ph.D. candidate in the Computer Science Department at Cornell University; extremely fortunate to be advised by Prof. Jon Kleinberg.

I work on algorithms and networks, exploring their roles within large-scale social and information systems, and understanding their wider societal implications. I am also affiliated with Cornell’s Artificial Intelligence, Policy, and Practice (AIPP) initiative.

I am interested in

• Information Diffusion and Contagion. Exploring how information and contagion diffuses in networks and how to remediate it. Examples include financial contagion (paper1, paper2, paper3), and supply chains.
• Privacy Preserving AI. Exploring how agents learn in a distributed way subject to privacy considerations. Examples include learning with continuous state spaces, and discrete state spaces.
• Network Models. Exploring how (hyper)-graphs form. Examples include learning the structure of core-periphery graphs and hypergraphs.
• LLMs for Social Science. Exploring the capabilities of LLMs in social science, simulating human behavior, and simulating complex socio-technical systems. Recent examples include network formation with LLM agents, and collective decision-making.

During my Ph.D., I have interned at the Office of Applied Research at Microsoft researching the use of LLMs in collective decision-making, and the User Modeling Research Team at Twitter Cortex, where I worked on scalable methods for node classification. I have also contributed to the open-source volesti package.

My research has been supported by an Onassis Scholarship, a LinkedIn Ph.D. Fellowship, a grant from the A.G. Leventis Foundation, a grant from the Gerondelis Foundation, and a Cornell University Fellowship.

I earned my undergraduate degree from the School of Electrical and Computer Engineering at the National Technical University of Athens, where I completed my thesis at the Computation And Reasoning Laboratory (CoReLab) under the supervision of Prof. Dimitris Fotakis. I have also been a researcher for the Business Analytics Lab (BALab) at the Department of Management Science and Technology at the Athens University of Economics and Bussiness, advised by Prof. Diomidis Spinellis.

[Google Scholar] [GitHub] [CV] [Twitter] [Mastodon] [LinkedIn]

My personal pronouns are he/him/his.

Contact

Office: 302 Gates Hall, Campus Rd, Ithaca, NY 14853

e-mail: papachristoumarios (at] cs [dot) cornell (dot] edu