[Retracted] Research on Keyword Extraction Algorithm in English Text Based on Cluster Analysis

Table 1

The result of text clustering.

Dataset	# Raw texts	# Extracted texts	Extraction ratio	## Feature words	Average word frequency of text	Coverage	F-measure
Data1	200	88	0.40	2400	92	0.88	0.89
Data2	400	270	0.60	5100	122	0.78	0.80
Data3	600	220	0.65	4800	126	0.77	0.72