Fig 6. AUPR score of NN-MT and RN-MT as a function of the $n_e^{-}/n_e^{+}$ ratio, for a number of extra-task positive pairs $n_e^{+}$ varying from 0 to 50, and for percentile-based similarity threshold θ of 20 and 80 applied to the intra-task positive pairs.

(a): NN-MT, θ = 0.20. (b): NN-MT, θ = 0.80. (c): RN-MT, θ = 0.20. (d): RN-MT, θ = 0.80. Numerical values can be found in Supporting Information, respectively S9–S12 Tables.