Table 1.

The key concepts in this paper and their definitions

Concept	Definition
Target vocabulary	The vocabulary to which we would like to suggest new terms. In this study, our target vocabulary is the CHV.
N-gram	A contiguous sequence of n words in a sentence. In this study, we included up to 5-grams, since n-grams with n between 1 to 5 can cover over 99% of the terms of interest [33].
Seed term	An n-gram extracted from the text corpus that can be found in the target vocabulary (i.e., CHV).
Candidate term	An n-gram that is not covered by the target vocabulary but could be potentially added to the target vocabulary. In order to qualify as a candidate term, an n- gram may be subject to some constraints, e.g., occurring more than 5 times in the corpus.
Term context	Either the entire sentence that contains the term, or a window of 10 words before or after the term in its sentence.