Fig. 6

The weighted aggregate taxonomy (WAT) for CIDO (version 1.0.306) with 10,853 concepts (b = 42). A white node inside a colored rectangular box represents a partial-area, which is a group of concepts having the same set of nonhierarchical (lateral) relationships and similar semantics denoted by the concept listed inside the white node. Relationships are listed inside the colored box (inherited ones are not shown). The boxes are color-coded by cardinalities of their sets of lateral relationships. Upward arrows are the hierarchical relationships connecting partial-areas. The weight of a partial-area is defined as the number of descendant concepts. A partial-area with a weight less than b is small and is aggregated into its closest ancestor large partial-area. A large partial-area having no aggregated partial-areas is represented as a rectangle white box with one number indicating the number of summarized concepts. A large partial-area having aggregated partial-areas is represented as a rectangle with rounded corners and with three numbers. The first number inside () is the number of summarized concepts including concepts aggregated from small partial-areas, the second number inside {} is the number of small partial-areas aggregated into it, and the third number inside [] is the number of concepts of the partial-area before the aggregation. See more details in Supplemental File 1