Some technical challenges for recommendation systems to operate on the web sites.

=> Many users, especially new users have extremely limited information.

=> The recommendation results must be returned in real-time with high-quality recommendations.(it makes system slow?)

official M/V is so funny.

Jaywalking is so brave behavior kk.

Eminime is 1972;;

older than bro. hk;;

2. find new methods to recommand or profiling.

3. modify the twitter crawling source.

4. request the right to the Twitter IP.

5. incorporate 한글한글 I source.

6. find the 4 point.