Rayen Tan

PhD Candidate, Industrial and Operations Engineering, University of Michigan

On the 2026–27 academic job market.

rayent at umich.edu CV Google Scholar DBLP ORCID

Hi, I'm Ray, a PhD candidate in the Industrial and Operations Engineering Department at the University of Michigan. I'm advised by Professor Viswanath Nagarajan. My research interests lie broadly in designing algorithms for stochastic optimization problems.

Papers

Distributionally Robust k-of-n Sequential Testing

Rayen Tan and Viswanath Nagarajan

Under review at Operations Research

arXiv

BibTeX

@misc{tan2026drst,
  author = {Tan, Rayen and Nagarajan, Viswanath},
  title = {Distributionally Robust {$k$}-of-{$n$} Sequential Testing},
  year = {2026},
  eprint = {2603.23705},
  archiveprefix = {arXiv},
  note = {Under review at Operations Research},
}

Informative Path Planning with Limited Adaptivity

Rayen Tan, Rohan Ghuge, and Viswanath Nagarajan

INFORMS Journal on Computing, 2026

Conference version: AISTATS 2024

Murty Prize (best student paper on optimization), 2025
University of Michigan IOE

arXiv IJOC AISTATS 2024

BibTeX

@article{tan2026ipp,
  author = {Tan, Rayen and Ghuge, Rohan and Nagarajan, Viswanath},
  title = {Informative Path Planning with Limited Adaptivity},
  journal = {INFORMS Journal on Computing},
  year = {2026},
  doi = {10.1287/ijoc.2024.0893},
  eprint = {2311.12698},
  archiveprefix = {arXiv},
}

Sequential Testing with Subadditive Costs

Blake Harris, Viswanath Nagarajan, and Rayen Tan (alphabetical order)

Minor revision at Mathematical Programming

Conference version: IPCO 2025

arXiv IPCO 2025

BibTeX

@misc{harris2025sst,
  author = {Harris, Blake and Nagarajan, Viswanath and Tan, Rayen},
  title = {Sequential Testing with Subadditive Costs},
  year = {2025},
  eprint = {2501.18010},
  archiveprefix = {arXiv},
  note = {Minor revision at Mathematical Programming},
}

A General Framework for Sequential Batch-Testing

Rayen Tan, Alex Xu, and Viswanath Nagarajan

Operations Research Letters, 2025

Operations Research Letters 2025 Best Paper Prize

Preprint OR Letters

BibTeX

@article{tan2025sbt,
  author = {Tan, Rayen and Xu, Alex and Nagarajan, Viswanath},
  title = {A General Framework for Sequential Batch-Testing},
  journal = {Operations Research Letters},
  volume = {63},
  pages = {107348},
  year = {2025},
  doi = {10.1016/j.orl.2025.107348},
}

Talks

Distributionally Robust Sequential Testing INFORMS Annual Meeting, San Francisco, CA, November 2026 (upcoming)
Sequential Testing with Subadditive Costs INFORMS Annual Meeting, Atlanta, GA, October 2025
Informative Path Planning with Limited Adaptivity INFORMS Annual Meeting, Seattle, WA, October 2024
Informative Path Planning with Limited Adaptivity AISTATS, Valencia, Spain, May 2024

Teaching

Graduate Student Instructor, University of Michigan

IOE 424: Practicum in Production and Service SystemsFall 2026
IOE 547: Supply Chain FacilitiesWinter 2026
IOE 265: Probability and Statistics for EngineersFall 2025
IOE 511: Continuous Optimization MethodsWinter 2025
IOE 410: Advanced Optimization and Computational MethodsFall 2024

Teaching Assistant, National University of Singapore

IE2110: Operations Research IFall 2019

Education

University of Michigan

PhD, Industrial and Operations Engineeringexpected 2027
M.S.E., Industrial and Operations Engineering2024

National University of Singapore

B.Eng., Industrial and Systems Engineering2022
B.Soc.Sci., Economics2022