activity
20222026
most citedAuto-Calibration and Biconvex Compressive Sensing with Applications to Parallel MRI

2 citations · 6 across the 16 of their papers we have counts for

collaborators

17 papers

math.OC2026

CyclOT: Learning Quadratic Optimal Transport Maps via Synchronized Forward-Backward Interpolants

Shizhou Xu, Jiachen Liu, Shih-Hsin Wang +4

We study the recovery of forward and reverse quadratic optimal-transport maps from unpaired samples in high dimensions. We introduce a bidirectional neural framework in which the l…

cond-mat.str-el2026

Observation geometry for uncertainty-aware Hamiltonian inference and experimental design in quantum magnets

Roy Liu, Venugopal Ranganathan, David Dahlbom +12

Determining microscopic interactions from spectroscopic and scattering measurements is central to understanding quantum materials, yet it often remains unclear which interactions c…

cs.LG2026

Mathematics of Data Science

Afonso S. Bandeira, Amit Singer, Thomas Strohmer

This book is about the mathematical foundations of data science. 1. Introduction 2. Curses, Blessings, and Surprises in High Dimensions 3. Singular Value Decomposition and Principa…

cs.SE2026

The "I Don't Know" Filter: Enhancing Agentic Reliability in Function Calling

Stefan Broecker, Mason del Rosario, Boris Selitser +1

The language models that underpin agents have seen a rapid rise in performance on function calling benchmarks. However, the metrics used in the training and evaluation of these mod…

cs.LG2026

Towards Multiscale Graph-based Protein Learning with Geometric Secondary Structural Motifs

Shih-Hsin Wang, Yuhao Huang, Taos Transue +4

Graph neural networks (GNNs) have emerged as powerful tools for learning protein structures by capturing spatial relationships at the residue level. However, existing GNN-based met…

cs.AI2025

Forgetting-MarI: LLM Unlearning via Marginal Information Regularization

Shizhou Xu, Yuan Ni, Stefan Broecker +1

As AI models are trained on ever-expanding datasets, the ability to remove the influence of specific data from trained models has become essential for privacy protection and regula…

cs.AI2025★ 1 cited

The Future of Artificial Intelligence and the Mathematical and Physical Sciences (AI+MPS)

Andrew Ferguson, Marisa LaFleur, Lars Ruthotto +97

This community paper developed out of the NSF Workshop on the Future of Artificial Intelligence (AI) and the Mathematical and Physics Sciences (MPS), which was held in March 2025 w…

cs.LG2025

FedOSAA: Improving Federated Learning with One-Step Anderson Acceleration

Xue Feng, M. Paul Laiu, Thomas Strohmer

Federated learning (FL) is a distributed machine learning approach that enables multiple local clients and a central server to collaboratively train a model while keeping the data…

cs.LG2025

Machine Unlearning via Information Theoretic Regularization

Shizhou Xu, Thomas Strohmer

How can we effectively remove or ``unlearn'' undesirable information, such as specific features or the influence of individual data points, from a learning outcome while minimizing…

stat.ML2024

WHOMP: Optimizing Randomized Controlled Trials via Wasserstein Homogeneity

Shizhou Xu, Thomas Strohmer

We investigate methods for partitioning datasets into subgroups that maximize diversity within each subgroup while minimizing dissimilarity across subgroups. We introduce a novel p…

cs.CR2024

Differentially Private Synthetic High-dimensional Tabular Stream

Girish Kumar, Thomas Strohmer, Roman Vershynin

While differentially private synthetic data generation has been explored extensively in the literature, how to update this data in the future if the underlying private data changes…

quant-ph2024

Quantum paving: When sphere packings meet Gabor frames

Markus Faulhuber, Thomas Strohmer

We introduce the new problems of quantum packing, quantum covering, and quantum paving. These problems arise naturally when considering an algebra of non-commutative operators that…

math.NA2024

Convergence Analysis of the Alternating Anderson-Picard Method for Nonlinear Fixed-point Problems

Xue Feng, M. Paul Laiu, Thomas Strohmer

Anderson Acceleration (AA) has been widely used to solve nonlinear fixed-point problems due to its rapid convergence. This work focuses on a variant of AA in which multiple Picard…

math.OC2024★ 1 cited

Improving Autoencoder Image Interpolation via Dynamic Optimal Transport

Xue Feng, Thomas Strohmer

Autoencoders are important generative models that, among others, have the ability to interpolate image sequences. However, interpolated images are usually not semantically meaningf…

math.ST2024★ 1 cited

On the (In)Compatibility between Group Fairness and Individual Fairness

Shizhou Xu, Thomas Strohmer

We study the compatibility between the optimal statistical parity solutions and individual fairness. While individual fairness seeks to treat similar individuals similarly, optimal…

math.OC2024★ 2 cited

Auto-Calibration and Biconvex Compressive Sensing with Applications to Parallel MRI

Yuan Ni, Thomas Strohmer

We study an auto-calibration problem in which a transform-sparse signal is acquired via compressive sensing by multiple sensors in parallel, but with unknown calibration parameters…

cs.CR2022★ 1 cited

Private measures, random walks, and synthetic data

March Boedihardjo, Thomas Strohmer, Roman Vershynin

Differential privacy is a mathematical concept that provides an information-theoretic security guarantee. While differential privacy has emerged as a de facto standard for guarante…