Fig. 3. Distributions of hedge words and uncertainty cue words with at least 10 occurrences in S+ or S-.
Fig. 5. A network of 435 words and 2119 similarity links, including 61 seed words (* − 1 − *) and 151 confirmed expanded words (* − * − 1) based on the Google News Word2Vec model. Words are colored by 12 modularity groups. The label size of a word is proportional to its PageRank score.
Fig. 7. A network of 435 words based on the PubMed word2vec model in 16 similarity clusters, including 61 seed words, 151 accepted candidates, and the remaining words are rejected candidates.