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Peijie Zhou

8 accepted papers

2026

Beyond Continuity: Simulation-free Reconstruction of Discrete Branching Dynamics from Single-cell Snapshots

ICML 2026poster

Inferring cellular trajectories from destructive snapshots is complicated by the challenges of stochasticity and non-conservative mass dynamics such as cell proliferation and apoptosis. Existing unbalanced Optimal Transport (OT) methods treat mass as a continuous fluid, performing inference at the p…

Cited by 0SourceScholar
2026

CellStream: Dynamical Optimal Transport Informed Embeddings for Reconstructing Cellular Trajectories from Snapshots Data

AAAI 2026technical

Single-cell RNA sequencing (scRNA-seq), especially temporally resolved datasets, enables genome-wide profiling of gene expression dynamics at single-cell resolution across discrete time points. However, current technologies provide only sparse, static snapshots of cell states and are inherently infl

Cited by 4SourcePDFScholar
2026

WFR-FM: Simulation-Free Dynamic Unbalanced Optimal Transport

ICLR 2026poster

The Wasserstein–Fisher–Rao (WFR) metric extends dynamic optimal transport (OT) by coupling displacement with change of mass, providing a principled geometry for modeling unbalanced snapshot dynamics. Existing WFR solvers, however, are often unstable, computationally expensive, and difficult to scale…

Cited by 0SourcecodeScholar
2025

Joint Velocity-Growth Flow Matching for Single-Cell Dynamics Modeling

NeurIPS 2025poster

Learning the underlying dynamics of single cells from snapshot data has gained increasing attention in scientific and machine learning research. The destructive measurement technique and cell proliferation/death result in unpaired and unbalanced data between snapshots, making the learning of the und…

Cited by 0SourceScholar
2025

Learning stochastic dynamics from snapshots through regularized unbalanced optimal transport

ICLR 2025oral

Reconstructing dynamics using samples from sparsely time-resolved snapshots is an important problem in both natural sciences and machine learning. Here, we introduce a new deep learning approach for solving regularized unbalanced optimal transport (RUOT) and inferring continuous unbalanced stochasti…

2025

Modeling Cell Dynamics and Interactions with Unbalanced Mean Field Schrödinger Bridge

NeurIPS 2025poster

Modeling the dynamics from sparsely time-resolved snapshot data is crucial for understanding complex cellular processes and behavior. Existing methods leverage optimal transport, Schrödinger bridge theory, or their variants to simultaneously infer stochastic, unbalanced dynamics from snapshot data.…

Cited by 0SourcecodeScholar
2025

Variational Regularized Unbalanced Optimal Transport: Single Network, Least Action

NeurIPS 2025poster

Recovering the dynamics from a few snapshots of a high-dimensional system is a challenging task in statistical physics and machine learning, with important applications in computational biology. Many algorithms have been developed to tackle this problem, based on frameworks such as optimal transport…

Cited by 0SourcecodeScholar