Fig. 4
From: The effect of transmission variance on observer placement for source-localization
A tree with different sets of k=4 observers (blue). The table displays the values of different metrics for the observer sets. The best values for each metric are in bold type. The remaining possible choices of k=4 observers within the leaves set are omitted either because they are equivalent to one of the placements considered or because they do not optimize any of the metrics examined