I am a second year Ph.D. student in the David R. Cheriton School of Computer Science at University of Waterloo, advised by Kimon Fountoulakis. I am a member of OpAL lab. I work on machine learning and optimization problems over graphs. Previously, I obtained a Master of Mathematics in the Department of Combinatorics & Optimization, where I worked with Ricardo Fukasawa and Laurent Poirrier.

**10.04.2021.**A short feature story about me on the Faulty of Mathematics’ website.**09.28.2021.**Our paper Local Hyper-Flow Diffusion was accepted at NeurIPS 2021. Many thanks to my wonderful mentors!**07.22.2021.**My presentation on Hyper-Flow Diffusion was a finalist for the Best Student Presentation Price at SIAM ACDA21.**07.19.2021.**I gave a talk at SIAM Conference on Applied and Computational Discrete Algorithms (SIAM ACDA21). Slides**07.08.2021.**I gave a talk at Networks 2021, the first combined meeting of the International Network for Social Network Analysis (Sunbelt XLI) and the Network Science Society (NetSci 2021). Slides**05.31.2021.**I was one of ten recipients to receive a Borealis AI 2021 Fellowship. Thank you Borealis AI!**05.17.2021.**I gave a talk at SIAM Conference on Applied Linear Algebra (SIAM LA21), Minisymposium on Nonlinear Laplacians on Graphs and Manifolds with Applications to Data and Image Processing. Slides**05.03.2021.**I started a research internship at Borealis AI in the Derivative Pricing Team.**09.23.2020.**I gave a talk at Network Science Society Conference (NetSci 2020). Slides**07.07.2020.**I gave a talk at SIAM Workshop on Network Science (SIAM NS20). Slides**06.22.2020.**I gave a talk at SIAM Conference on Mathematics of Data Science (SIAM MDS20), Minisymposium on The Multiple Perspectives on Graph-Based Machine Learning. Slides

Local Hyper-Flow Diffusion

Kimon Fountoulakis, Pan Li, Shenghao Yang

Neural Information Processing Systems (NeurIPS) 2021

Targeted Pandemic Containment Through Identifying Local Contact Network Bottlenecks

Shenghao Yang, Priyabrata Senapati, Di Wang, Chris T. Bauch, Kimon Fountoulakis

PLOS Computational Biology, 17(8):e1009351. 2021

Parallel and Communication Avoiding Least Angle Regression

Swapnil Das, James Demmel, Kimon Fountoulakis, Laura Grigori, Michael W. Mahoney, Shenghao Yang

SIAM Journal on Scientific Computing, 43(2):C154-C176. 2021

p-Norm Flow Diffusion for Local Graph Clustering

Kimon Fountoulakis, Di Wang, Shenghao Yang

International Conference on Machine Learning (ICML) 2020

Split Cuts from Sparse Disjunctions

Ricardo Fukasawa, Laurent Poirrier, Shenghao Yang

Mathematical Programming Computation, 12(2):295-335. 2020