Modified Gravity Simulations

该数据集包含了2500个经过修改的重力模拟，这些模拟变动了四个宇宙学参数：Ω_m、h、σ_8和f_{R0}。每个模拟追踪了一个128^3粒子在小立方体中的动力学，该立方体的共动边长为256 h^{-1} Mpc。参数空间采用随机数均匀分布的方式在每个参数指定的范围内进行采样。其中，训练集占数据的80%，即2000个盒子包含了过密度场。规模上，共有2500个模拟，其中2000个用于训练，500个用于测试。任务目标是生成3D暗物质密度场。

This dataset comprises 2500 modified gravity simulations that vary four cosmological parameters: Ω_m, h, σ_8, and f_{R0}. Each simulation tracks the dynamical evolution of 128³ particles within a small comoving cubic box with a comoving side length of 256 h⁻¹ Mpc. The parameter space is sampled using uniform random distributions across the predefined ranges of each individual parameter. The training set accounts for 80% of the total dataset, corresponding to 2000 boxes containing the overdensity fields. In total, there are 2500 simulations, with 2000 allocated for training and 500 for testing. The task objective is to generate 3D dark matter density fields.