Yes, a linear weighting of factors would be perfectly fine. But we're in 2020. A small two-layer MLP has a negligible impact when compared to the work to (e.g.

Yes, a linear weighting of factors would be perfectly fine. But we're in 2020. A small two-layer MLP has a negligible impact when compared to the work to (e.g.) output the current git branch at every command prompt.