Test set of the m12f LSR1 catalog using stars with δϖ/ϖ < 0.10.
Notes. The neural networks are trained on separate m12i galaxy simulations with truth-level information and then re-trained using only observable information from m12f LSR1. The optimal cut of 0.75 yields velocity distributions most similar to the truth-level accreted distributions, but only has a purity of 41%. This is comparable to the traditional methods listed in Table 1. A stronger cut of 0.95 increases the purity, but decreases the fraction of accreted stars that are selected, and can bias the velocity distributions. This provides an estimate for the purity and efficiency expected when applied to Gaia.
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