covariance estimation 1eigenvalue phase transition 1high-dimensional statistics 1random matrix theory 1spiked mixture model 1
From the 1 of 3 linked papers with an AI index.
3 papers
math.PR2026
Phase Transition of Eigenvalues of Covariances from the Spiked Mixture Model in High-dimensional Regimes
Paul-Louis Delacour, Raf Van de Plas
The paper proves that the largest eigenvalues of covariance matrices from the spiked mixture model undergo a phase transition in high‑dimensional settings, and it characterizes how…
astro-ph.IM2026
Thermal background reduction for mid-infrared imaging by low-rank background and sparse point-source modelling
R. A. R. Moens, A. G. M. Pietrow, B. Brandl +1
Mid-infrared astronomy from the ground faces critical challenges in accurately detecting and quantifying sources due to the dominant spatially and time-variable background noise. M…
cs.CV2024
Virtual Staining of Label-Free Tissue in Imaging Mass Spectrometry
Yijie Zhang, Luzhe Huang, Nir Pillar +5
Imaging mass spectrometry (IMS) is a powerful tool for untargeted, highly multiplexed molecular mapping of tissue in biomedical research. IMS offers a means of mapping the spatial…