Table 1.

Production indicators and inclusion criteria.

Configuration	Values
Analysis unit	Keywords authors, keywords Web of Science (WoS)
Frequency threshold	Keywords: P1 = (4), P2 = (4), P3 = (5), P4 = (5), P5 = (5), P6 = (5)
	Authors: PX = (8)
Network type	Co-occurrence
Co-occurrence union value threshold	Keywords: P1 = (3), P2 = (3), P3 = (4), P4 = (4), P5 = (4), P6 = (4)
	Authors: PX = (5)
Normalization measure	Equivalence index
Clustering algorithm	Maximum size: 9; Minimum size: 3
Evolutionary measure	Jaccard index
Overlapping measure	Inclusion rate