Slices through maps of structure types in the late-time large-scale structure, at a = 1. The colour coding is blue for voids, green for sheets, yellow for filaments, and red for clusters. Black corresponds to regions where data constraints are insufficient to make a decision. The parameter α, defined by Eq. (3), quantifies to the risk aversion in the map: α = 1.0 corresponds to the most speculative map of the large-scale structure, and maps with α ≥ 1 are increasingly conservative. These maps are based on the posterior probabilities inferred by Leclercq et al. (2015) and on the Bayesian decision rule subject of the present work.