[Retracted] Prediction Model of Music Popular Trend Based on NNS and DM Technology

Table 2

User operation table.

User_id	Song_id	Gmt_create	Action_type	ds
7063b3dOc075a4d276c5f}6f4327cf4a	effb071415be51fl1e845884e67cOf8c	1426405100	2	20210316
Odb66cOdd3993fd3504bb98c3beb15b3	f87ff481d8Sd2f}5335ab602f38a7655	1426416800	2	20210316
...	...	...	...	...