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Fig. 2 | Journal of Biomedical Semantics

Fig. 2

From: Towards a more molecular taxonomy of disease

Fig. 2

How the Parent Promotion method transforms a dendrogram created by hierarchical clustering. a Dendrogram for diseases of infants born preterm. Hierarchical clustering builds a tree whose internal nodes are hard to interpret. b Parent Promotion finds the most general disease term from each cluster and promotes it as an internal node. An internal node becomes the parent of all other nodes in the same cluster. Disease term 3 has the most citations and keeps being selected for promotion until it becomes the root. Disease term 6 has more citations than 5 and is promoted as the parent of 5. However, it later becomes a child of 3 because it has fewer citations than 3. c Final tree built by Parent Promotion

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