4 citations · 5 across the 3 of their papers we have counts for
5 papers · 1 filter
Plausible Adversarial Attacks on Direct Parameter Inference Models in Astrophysics
Benjamin Horowitz, Peter Melchior
In this abstract we explore the possibility of introducing biases in physical parameter inference models from adversarial-type attacks. In particular, we inject small amplitude sys…
Differentiable Stochastic Halo Occupation Distribution
Benjamin Horowitz, ChangHoon Hahn, Francois Lanusse +2
In this work, we demonstrate how differentiable stochastic sampling techniques developed in the context of deep Reinforcement Learning can be used to perform efficient parameter in…
TARDIS Paper II: Synergistic Density Reconstruction from Lyman-alpha Forest and Spectroscopic Galaxy Surveys with Applications to Protoclusters and the Cosmic Web
Benjamin Horowitz, Benjamin Zhang, Khee-Gan Lee +1
In this work we expand upon the Tomographic Absorption Reconstruction and Density Inference Scheme (TARDIS) in order to include multiple tracers while reconstructing matter density…
TARDIS Paper I: A Constrained Reconstruction Approach to Modeling the z~2.5 Cosmic Web Probed by Lyman-alpha Forest Tomography
Benjamin Horowitz, Khee-Gan Lee, Martin White +2
Recent Lyman- forest tomography measurements of the intergalactic medium (IGM) have revealed a wealth of cosmic structures at high redshift (). In this work, we prese…
Efficient Optimal Reconstruction of Linear Fields and Band-powers from Cosmological Data
Benjamin Horowitz, Uros Seljak, Grigor Aslanyan
We present an efficient implementation of Wiener filtering of real-space linear field and optimal quadratic estimator of its power spectrum Band-powers. We first recast the field r…