Figure 7.

Inter-set transfer with the four variations of the algorithm (horizontal axes). (a) Mean change in predictive performance compared to training on the target data alone. (b) Mean amount of information retained during transfer learning; rr/rp, rr/rl and ar/al have the same meaning as in Figure 5. The results are averages of the two pairs of protein profiling lung cancer data sets, using each data set once as target data in turn and the other one as source, and 10-fold cross-validation over the target data.