An Activation Method of Topic Dictionary to Expand Training Data for Trend Rule Discovery

Table 2

Number of text sequential data.

Site	Period
	D1	D2
Excite	132,878	38,761
Goo	143,062	30,593
Infoseek	240,141	62,407
Livedoor	233,773	66,740
Yahoo	253,619	70,184
Total	1,003,473	268,685