上船吧，非浪
- check the auto feature engineering
- do data exploration
- make new features
- rollback online score 1.0
- add some new feature o1 and o2
- data analysis
- add ifidf (done creative_id)
- add word2vec
- reference kddcup2019 Context-Aware-Multi-Modal-Transportation-Recommendation
- find kddcup2019 CAMMTR code and data -- 1.5h
- coding tfidf feature -- 0.5h
- genrate tfidf feature -- 4h
- 1.273774
- label-encode by k-fold
- 1.314364
- format code
- add all id word2vec
- find using method of tfidf
- learning meta train
- 1.325762 (add word2vec id)