activity
19942023
most citedThe Seventh Data Release of the Sloan Digital Sky Survey

5.4k citations · 27.8k across the 92 of their papers we have counts for

collaborators

90 papers

math.DS2023★ 2 cited

Discovering New Interpretable Conservation Laws as Sparse Invariants

Ziming Liu, Patrick Obin Sturm, Saketh Bharadwaj +2

Discovering conservation laws for a given dynamical system is important but challenging. In a theorist setup (differential equations and basis functions are both known), we propose…

cs.LG2023★ 5 cited

GenPhys: From Physical Processes to Generative Models

Ziming Liu, Di Luo, Yilun Xu +2

Since diffusion models (DM) and the more recent Poisson flow generative models (PFGM) are inspired by physical processes, it is reasonable to ask: Can physical processes offer addi…

cs.LG2022★ 11 cited

Poisson Flow Generative Models

Yilun Xu, Ziming Liu, Max Tegmark +1

We propose a new "Poisson flow" generative model (PFGM) that maps a uniform distribution on a high-dimensional hemisphere into any data distribution. We interpret the data points a…

cs.LG2022★ 77 cited

AI Poincaré 2.0: Machine Learning Conservation Laws from Differential Equations

Ziming Liu, Varun Madhavan, Max Tegmark

We present a machine learning algorithm that discovers conservation laws from differential equations, both numerically (parametrized as neural networks) and symbolically, ensuring…

cs.LG2021★ 26 cited

Machine-Learning Non-Conservative Dynamics for New-Physics Detection

Ziming Liu, Bohan Wang, Qi Meng +3

Energy conservation is a basic physics principle, the breakdown of which often implies new physics. This paper presents a method for data-driven "new physics" discovery. Specifical…

astro-ph.IM2018★ 2 cited

Assessment of ionospheric activity tolerances for Epoch of Reionisation science with the Murchison Widefield Array

Cathryn M. Trott, C. H. Jordan, S. G. Murray +20

Structure imprinted in foreground extragalactic point sources by ionospheric refraction has the potential to contaminate Epoch of Reionisation (EoR) power spectra of the 21~cm emis…