Table 3:

Evaluation results

Method	Precision	Recall	F1
Non-word only
ESpell (with filtering)	0.53	0.20	0.29
Preprocessing only	0.94	0.33	0.49
W/Orthographic similarity	0.57	0.52	0.55
W/Corpus frequency	0.45	0.41	0.43
W/Context similarity	0.42	0.38	0.40
ALL	0.64	0.58	0.61
Real-word included
ESpell	0.23	0.26	0.25
ALL	0.57	0.59	0.58
Important for focus/frame only
ESpell	0.58	0.56	0.57
ALL	0.83	0.70	0.76