An Overview of Biomolecular Event Extraction from Scientific Documents

Table 1

Most common features used in the main event detection stages.

Feature groups	Features	Trigger recognition	Edge detection
Token	Part-of-speech	X	X
	Lemma
	Orthographic	X
	Char n-grams	X
	Word shape	X
	Prefixes/suffixes	X
Sentence and local context	Number of entities	X
	BoW counts	X
	Windows or conjunctions of features	X
Dependency	Number and type of dependency edges	X
	Words, lemmas, or POS tags in dependency path	X	X
	N-grams in dependency path	X	X
External resources	WordNet lemmas	X	X
	Trigger lexicon	X	X
	Entity lexicon	X	X