User profiles for Yongxin Chen

Yongxin Chen

Associate Professor, Georgia Institute of Technology
Verified email at gatech.edu
Cited by 3973

Optimal transport over a linear dynamical system

Y Chen, TT Georgiou, M Pavon - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
We consider the problem of steering an initial probability density for the state vector of a linear
system to a final one, in finite time, using minimum energy control. In the case where the …

Differential patterns of microRNA expression in neuroblastoma are correlated with prognosis, differentiation, and apoptosis

Y Chen, RL Stallings - Cancer research, 2007 - AACR
Neuroblastoma accounts for 15% of pediatric cancer deaths, and although a few protein-coding
genes, such as MYCN, are involved with aggressive pathogenicity, the identification of …

Optimal transport for Gaussian mixture models

Y Chen, TT Georgiou, A Tannenbaum - IEEE Access, 2018 - ieeexplore.ieee.org
We introduce an optimal mass transport framework on the space of Gaussian mixture models.
These models are widely used in statistical inference. Specifically, we treat the Gaussian …

Fast sampling of diffusion models with exponential integrator

Q Zhang, Y Chen - arXiv preprint arXiv:2204.13902, 2022 - arxiv.org
The past few years have witnessed the great success of Diffusion models~(DMs) in generating
high-fidelity samples in generative modeling tasks. A major limitation of the DM is its …

[HTML][HTML] Reproducibility of quantitative RT-PCR array in miRNA expression profiling and comparison with microarray analysis

Y Chen, JAL Gelfond, LM McManus, PK Shireman - BMC genomics, 2009 - Springer
Background MicroRNAs (miRNAs) have critical functions in various biological processes.
MiRNA profiling is an important tool for the identification of differentially expressed miRNAs in …

Identification and characterization of lin-28 homolog B (LIN28B) in human hepatocellular carcinoma

Y Guo, Y Chen, H Ito, A Watanabe, X Ge, T Kodama… - Gene, 2006 - Elsevier
Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide.
Several studies have identified signature gene sets that may be useful as potential diagnostic …

On the relation between optimal transport and Schrödinger bridges: A stochastic control viewpoint

Y Chen, TT Georgiou, M Pavon - Journal of Optimization Theory and …, 2016 - Springer
We take a new look at the relation between the optimal transport problem and the
Schrödinger bridge problem from a stochastic control perspective. Our aim is to highlight new …

Optimal steering of a linear stochastic system to a final probability distribution, Part I

Y Chen, TT Georgiou, M Pavon - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
We consider the problem of steering a linear dynamical system with complete state observation
from an initial Gaussian distribution in state-space to a final one with minimum energy …

Hyaluronic acid-based glucose-responsive antioxidant hydrogel platform for enhanced diabetic wound repair

Z Xu, G Liu, P Liu, Y Hu, Y Chen, Y Fang, G Sun… - Acta biomaterialia, 2022 - Elsevier
Hyaluronic acid (HA)-based antioxidant hydrogels have achieved remarkable results in diabetic
wound repair. However, the realization of their glucose-responsive antioxidant functions …

Loss-guided diffusion models for plug-and-play controllable generation

…, M Mardani, MY Liu, J Kautz, Y Chen… - International …, 2023 - proceedings.mlr.press
We consider guiding denoising diffusion models with general differentiable loss functions in
a plug-and-play fashion, enabling controllable generation without additional training. This …