Table 2.
Properties of the three-level PubMed model.
| PM5 | PM4 | PM3 | |
|---|---|---|---|
| Resolution | 7.75E-05 | 10 | 21.25 |
| Minimum cluster size | 75 | 750 | 7500 |
| # Clusters | 28,889 | 3074 | 288 |
| Largest cluster | 6052 | 44,163 | 583,979 |
| Ratio largest::smallest | 80.7 | 56.0 | 74.0 |
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