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Parameter estimation by both theoretical and approximated MAP-EM solutions, given the ground truth as initials
| Theoretical | Approximated | |
|---|---|---|
| Error rate of {Zi1} | 0.93% | 1.48% |
| Error rate of {Zi2 } | 2.27% | 2.17% |
| Error rate of {Zi3 } | 3.13% | 3.56% |
| Mean of CSF | 46 | 46 |
| Mean of grey matter | 110 | 111 |
| Mean of white matter | 148 | 149 |
| Variance of CSF | 4 | 6 |
| Variance of grey matter | 14 | 19 |
| Variance of white matter | 22 | 27 |
