Figure 3. Sample distribution before and after DA for sequences (a) T2, (b) ADC, and (c) hDWI using t-SNE. Similar change of distributions can be observed in all the sequences. Before DA, sample distributions of the source (red dots) and target (blue triangles) are dispersed in separate clusters, indicating severe their domain shift. The mixed and even distribution after DA demonstrates the effectiveness of CMD²A-Net in feature alignment. (d) indicates the impact of hyperparameters (i.e.,  \(\alpha\) and  \(\beta\)) in the loss sensitivity analysis.