Effect of cross-talk with undiscovered HERVs. Comparison between results from a small subset of 181 HERVs (learned with the HMM mixture model) and results from the complete set of 2450 HERVs (learned using the BLAST approach). The scale of the figure is such that the relative activities for the HERVs sum up to 1 in both x and y dimensions.
Oja et al. BMC Bioinformatics 2007 8(Suppl 2):S11 doi:10.1186/1471-2105-8-S2-S11