Table 7. The top 10 ranked words of selected weak/strong signal related topics in patent activities.

Topic 0		Topic 2		Topic 4		Topic 6
Word	probability	word	probability	Word	probability	word	probability
washing	0.031	portion	0.021	display	0.030	vehicle	0.071
method	0.021	display	0.020	information	0.021	tire	0.035
water	0.017	direction	0.016	Data	0.017	turbine	0.032
plant	0.016	surface	0.016	device	0.017	control	0.023
invention	0.015	first	0.015	First	0.015	wind	0.019
dust	0.015	body	0.013	method	0.013	system	0.018
present	0.011	side	0.011	security	0.012	aircraft	0.018
rubber	0.011	image	0.011	One	0.012	power	0.016
step	0.008	second	0.011	system	0.010	air	0.012
tub	0.007	position	0.011	Unit	0.010	unit	0.071
Topic 1		Topic 3		Topic 5
word	probability	word	probability	word	probability
cell	0.038	invention	0.031	signal	0.032
base	0.031	protein	0.021	Light	0.021
bead	0.019	present	0.017	Value	0.020
channel	0.017	tissue	0.017	First	0.016
shoulder	0.015	comprising	0.015	Unit	0.015
block	0.014	relates	0.013	second	0.013
domain	0.011	methods	0.012	sensor	0.012
embodiments	0.010	acid	0.012	based	0.012
include	0.010	said	0.010	detection	0.010
may	0.009	proteins	0.010	Time	0.009