Table 3. Information about real metagenomic datasets.
| Dataset | Biological background | Source | Sequencer | # of Reads | Size (MB) |
| Real Sample 1 | Saliva sample, person 1, healthy | MG-RAST, 4454806.3 | Illunima Solexa | 17,591,235 | 1576.96 |
| Real Sample 2 | Saliva sample, person 2, decayed tooth | MG-RAST, 4454817.3 | Illunima Solexa | 34,405,667 | 2775.04 |
| Real Sample 3 | Saliva sample, person 3, decayed tooth | MG-RAST, 4454816.3 | Illunima Solexa | 28,854,628 | 2928.64 |
| Real Sample 4 | Gut sample, person 4 | CAMERA2, TS3_SRX001344 | 454 FLX | 510,972 | 198.70 |
| Real Sample 5 | Gut sample, person 5 | CAMERA2, TS50_SRX001358 | 454 FLX | 549,700 | 216.76 |
| Real Sample 6 | Gut sample, person 6 | CAMERA2, TS7_SRX001348 | 454 FLX | 555,853 | 238.35 |