I am an NSF TRIPODS Postdoctoral Fellow at the University of Illinois at Urbana-Champaign. I am affiliated with Illinois Institute of Data Science and Dynamical Systems. My research interests lie in learning theory, optimization and statistics, with a focus on:

• theoretical foundations of reinforcement learning,
  
• deep learning theory,
• online learning and multi-armed bandits.
  

My curriculum vitae can be found here.

Selected Papers

• Sample Complexity and Overparameterization Bounds for TD Learning with Neural Network Approximation [paper]
  Semih Cayci, Siddhartha Satpathi, Niao He, R. Srikant
  ICML Workshop on Overparameterization 2021
  
• Convergence of Entropy-Regularized Natural Policy Gradient Methods with Linear Function Approximation [paper]
  Semih Cayci, Niao He, R. Srikant
  ICML Workshop on Reinforcement Learning Theory 2021
  

• A Lyapunov-Based Methodology for Constrained Optimization with Bandit Feedback
  Semih Cayci, Yilin Zheng, Atilla Eryilmaz
  AAAI 2022
  [paper]
• Group-Fair Online Allocation in Continuous Time
  Semih Cayci, Swati Gupta, Atilla Eryilmaz
  NeurIPS 2020
  [paper]
• Budget-Constrained Bandits over General Cost and Reward Distributions
  Semih Cayci, Atilla Eryilmaz, R. Srikant
  AISTATS 2020
  [paper]
• Learning to Control Renewal Processes with Bandit Feedback
  Semih Cayci, Atilla Eryilmaz, R. Srikant
  ACM SIGMETRICS 2019
  [paper]