Comparison of topic extraction approaches and their results
Using global mapping to create more accurate document-level maps of research fields
Semantic Similarity in a Taxonomy: An Information-Based Measure and its Application to Problems of Ambiguity in Natural Language
Clustering articles based on semantic similarity
Co-word maps and topic modeling: A comparison using small and medium-sized corpora (N < 1, 000)
Identifying emerging research fields: a longitudinal latent semantic keyword analysis