Table 1.
Average number of GI predictions and accuracy measurements of several GI prediction tools.
Tool | Average number of nucleotides in GIs per genome (kb) | Precision | Recall | Overall Accuracy |
SIGI-HMM | 232.7 | 92.3 | 33.0 | 86.3 |
IslandPath/DIMOB | 170.7 | 85.8 | 35.6 | 86.2 |
PAI IDA | 163.2 | 68.0 | 32.2 | 83.7 |
Centroid | 171.3 | 61.3 | 27.6 | 82.4 |
IslandPath/DINUC | 444.4 | 54.8 | 53.3 | 82.2 |
Alien Hunter | 1264.8 | 38.0 | 77.0 | 70.8 |
Literature | 639.4 | 100 | 87.0 | 96.3 |
*Results are averaged from 118 chromosomes in 117 different strains [see Additional file 6] except for the "Literature" GIs, which were averaged over 5 strains; Escherichia coli O157:H7, E. coli O157:H7 EDL933, Salmonella enterica Typhi str. CT18, S. enterica typhimurium LT2, and Streptococcus pyogenes MGAS315 [21-25].