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IPS273 Tomoki Tokuda et al.

Figure 4. Classification of D1, D2 and D3. Panel (A): Distribution of subjects.
Panel (B): A classification tree based on Panel (A).

4. Conclusion
We have developed a novel multiple co-clustering method based on
nonparametric Bayesian mixture models. This method can reveal the
underlying multiple view structures in which co-clustering structures with
different types of distributions are imbedded. Applying this method to a
concatenated dataset of different modalities of depression data, we have
identified a relevant view for subtypes of depression. Further analysis of this
view implies a possible classification of treatment-resistant depression and
non-treatment-resistant depression prior to the onset of SSRI treatment. This
result is useful for further investigation of classification of MDD patients from
the perspective of treatment effect.

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