From free text to clusters of content in health records: an unsupervised graph partitioning approach

Applied Network Science

Table 2 Benchmarking of Markov Stability clusters versus LDA topics at different levels of resolution

	Similarity to hand-coded categories (NMI)		Topic Coherence (\(\widehat {PMI}\))
No. of topics/clusters	LDA	MS	LDA	MS
3	0.311	0.267	2.991	3.033
7	0.409	0.393	3.218	3.303
12	0.361	0.398	3.270	3.517
17	0.390	0.401	3.419	3.457
44	0.395	0.388	3.549	3.716

Scores for similarity to hand-coded categories (NMI) and topic coherence (\(\widehat {PMI}\)) for the five MS resolutions highlighted in the main text and their corresponding LDA models. Boldface identifies the best computational result