36 citations · 57 across the 11 of their papers we have counts for
4 papers · 1 filter
Galactification: painting galaxies onto dark matter only simulations using a transformer-based model
Shivam Pandey, Christopher C. Lovell, Chirag Modi +1
Connecting the formation and evolution of galaxies to the large-scale structure is crucial for interpreting cosmological observations. While hydrodynamical simulations accurately m…
Symbolic Emulators for Cosmology: Accelerating Cosmological Analyses Without Sacrificing Precision
Deaglan J. Bartlett, Shivam Pandey
In cosmology, emulators play a crucial role by providing fast and accurate predictions of complex physical models, enabling efficient exploration of high-dimensional parameter spac…
Fisher Score Matching for Simulation-Based Forecasting and Inference
Ce Sui, Shivam Pandey, Benjamin D. Wandelt
We propose a method for estimating the Fisher score--the gradient of the log-likelihood with respect to model parameters--using score matching. By introducing a latent parameter mo…
The effect of intrinsic alignments on weak lensing statistics in hydrodynamical simulations
Max E. Lee, Zoltán Haiman, Shivam Pandey +1
The next generation of weak gravitational lensing surveys has the potential to place stringent constraints on cosmological parameters. However, their analysis is limited by systema…