3 papers
astro-ph.CO2026
Optimization of Tessellation-based Statistics: Void Statistics
Yu Liu, Cheng Zhao, Yu Yu +2
Tessellation methods are extensively employed in the analyses of cosmic large-scale structure (LSS). However, these techniques are highly sensitive to perturbations in both densiti…
astro-ph.IM2026
Advancing weak lensing mass mapping with a mask-aware HEALPix transformer
Yihe Wang, Yu Yu
We present HEALFormer, a transformer-based neural network architecture for weak gravitational lensing mass mapping that reconstructs convergence maps from incomplete and noisy shea…
astro-ph.CO2025
Redshift Distributions of Fast Radio Bursts Inferred Using Clustering in Dispersion Measure Space
Hui Peng, Yu Yu
Fast radio bursts (FRBs), millisecond-duration radio transient events, possess the potential to serve as excellent cosmological probes. The FRB redshift distribution contains infor…