Han Cheng Lie (pronouns: he / him)
Professor (W1), Chair of Uncertainty Quantification, Institut für Mathematik, Universität Potsdam
Very important science
NEW: 2023 AR6 Synthesis Report. A key figure that illustrates where action can be taken is here. For more figures, see this page.
The evidence for the climate crisis (see also the Sixth Assessment Report of the IPCC)
What individuals can do about the climate crisis [Link to the cited research article]
2019 Global Assessment Report on Biodiversity and Ecosystem Services
2019 IPCC Special Report on Global Warming of 1.5 degrees Celcius
Updates
April 2025:
Two preprints on low-rank approximations for Gaussian posterior measures for linear inverse problems are available on the arXiv: Part I concerns approximations of the posterior covariance, while Part II concerns approximations of the posterior mean. Joint work with Giuseppe Carere.
March 2025:
I gave a talk at the RICAM Colloquium about joint work with Giuseppe Carere, on a class of generalised operator approximation problems. Thanks to Otmar Scherzer for the invitation and for hosting an enjoyable and productive one-day research visit.
January 2025:
A minisymposium on learning with dynamical systems and observable statistics, proposed by Joanna Zou, Matt Levine, and myself was accepted for the SIAM conference on dynamical systems. [Disclaimer: I don't appear on the list of organisers because SIAM has the policy that all organisers must attend, and unfortunately I cannot attend the conference.]
The paper on data subsampling for Poisson regression, co-authored with Alex Munteanu and accepted in the proceedings for NeurIPS 2024, is available on OpenReview.
I begin a six-month appointment as deputy speaker of the CRC 1294 "Data Assimilation" at the University of Potsdam.
Archived updates are available here.