Table 1.
Ontology complexity metrics.
Figure 1.
Evolution of the number of classes of the three branches of the Gene Ontology.
Biological process (BP), Cellular component (CC) and Molecular function (MF).
Figure 2.
Evolution of the number of relations of the Gene Ontology (top left) and its Biological process (top right), Cellular component (bottom left) and Molecular function (bottom right) branches.
Table 2.
Gene Ontology complexity variations.
Table 3.
Proportions of classes for the three Gene Ontology branches.
Table 4.
Proportions of relations for the three Gene Ontology branches.
Figure 3.
Evolution of the average degree of the nodes of the three branches of the Gene Ontology.
Biological process (BP), Cellular component (CC) and Molecular function (MF).
Figure 4.
Contributions of the is a, part of and regulates relations to a node's average degree for the Gene Ontology (top left) and its three branches Biological process (top right), Cellular component (bottom left) and Molecular function (bottom right).
Figure 5.
Variations of the proportion of leaves for the Gene Ontology three branches.
Biological process (BP), Cellular component (CC) and Molecular function (MF).
Figure 6.
Variations of the average height of the nodes from the Gene Ontology: together (top left), Biological process (top right), Cellular component (bottom left) and Molecular function (bottom right).
Figure 7.
Variations of the average depth of the nodes from the Gene Ontology: together (top left), Biological process (top right), Cellular component (bottom left) and Molecular function (bottom right).
Table 5.
Simulated evolution of the three Gene Ontology branches between February and March 2010.
Figure 8.
Proportion of leaves for the fifty simulated ontologies, compared to the value for the March 2010 version of the Gene Ontology (red line).
Figure 9.
Average classes' heights for the fifty simulated ontologies, compared to the value for the March 2010 version of the Gene Ontology (red line).
Figure 10.
Average classes' depths for the fifty simulated ontologies, compared to the value for the March 2010 version of the Gene Ontology (red line).
Table 6.
Comparison of the fifty randomly enriched ontologies with the March 2010 version of Gene Ontology.