7. . . (10 marks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ) Given the following dissimilarity matrix, identify which two clusters should be merged next and write the dissimilarity matrix for the next round using single linkage. (5 marks) B CF G H | ADE ADE 0.00 B 2.64 CF 2.91 G 2.59 H 1.11 0.00 4.01 0.00 3.41 3.67 0.00 3.40 2.06 3.29 0.00 (b) Explain the principles of centroid linkage and highlight its main drawback