Figure 4. Classification performance for different genome coverages.

As coverage decreases, so does the performance of Bowtie2, Pathoscope2 and Kraken. Conversely, BLAST and PaPrBaG still deliver sound results at coverages as low as 0.001. The triangles show results for the consensus filter when combining PaPrBaG and Kraken. It achieves high performances at all coverage levels, however, at the cost of filtering out more and more data.