I’m a Ph.D. student in Mathematics at Texas A&M University, advised by
Professor Simon Foucart. I study computational methods for high-dimensional
problems arising in science and machine learning.
I’m particularly interested in understanding how hidden low-dimensional
structure arises in complex systems, and in developing efficient algorithms
that discover and exploit this structure. My current work focuses on tensor
methods, compressed sensing, and optimal recovery.
Before joining Texas A&M, I received an M.S. in Computational and Applied
Mathematics from the University of Chicago, where I worked with Professor
Yuehaw Khoo, and a B.S. in Pure and Applied Mathematics from Hunan University.
Selected research
Compressed Sensing with Quantized Tensor Trains
Jingchun Shao
Submitted · 2026
Storing and recovering finely discretized signals can be prohibitively
expensive. We study how low-rank quantized tensor-train representations and
sparse low-order interactions enable recovery from limited measurements.
We establish conditions for unique recovery and develop a provably accurate
initialization whose measurement requirement grows polynomially with tensor
order for fixed structural parameters.
Worst-Case Completion of Tensors with Approximately Few ANOVA Terms
Simon Foucart and Jingchun Shao
Manuscript in preparation · 2026
We study the recovery of high-dimensional tensors with approximately low-order
ANOVA structure, with guarantees on the worst-case recovery error. Our work
advances the theory of optimal recovery and provides a practical framework
for applying these methods to real-world high-dimensional data.