[Retracted] Rapid Classification and Analysis for E-Commerce Goods Based on Multitask Learning

Table 1

Example of log data.

User	Commodity	Category	Operation	Time
	a		Click	2013-06-02T16:20:00
	b		Click	2013-06-02T16:25:08
	a		Buy	2013-06-02T16:36:00
	c		Click	2013-06-01T12:20:00
	c		Collect	2013-06-01T12:28:30