Type of data | Unit of analysis | Analytical methods | Presentations of results |
---|---|---|---|
Keywords | Words | Frequency of co-occurrence | 1) Map of authors’ keywords |
Abstracts | Papers | Latent Dirichlet Allocation | 2) Ten classifications of research topics |
WoS classification of research areas | WoS research areas | Frequency of co-occurrence | 3) Dendrogram of research disciplines (WoS classification) |