Figure 1

Topological accuracy depending on the rate of missing entries. Horizontal axis: percentage of missing distances (P_miss. Vertical axis: topological accuracy measured by the mean (over 500 trials) quartet distance (d _q ) between the correct and inferred trees. s: number of taxon pairs that BIONJ* first selects using NJ-like $Q_{xy}^{\ast }$ criterion (6), and then analyzes using score-based $N_{xy}^{\ast }$ criterion (9) (and criteria (8), (10), (11) in case of ties). The distance matrix is additive, and thus all methods recover the correct tree when P_miss = 0.