What is Big Data?
Big Data is probably when, in the study of a large flat in the core area of Coastal City, just because a recently awakened teenager searched for the Little Alibaba Mathematics Competition on his phone a few times, and often talked about the name Qiao Yu with his coach on WeChat.
So when he woke up, picked up his phone, and casually opened D Sound, he saw that maddening guy bragging in front of the camera.
Then he silently watched all three videos, tugged at the corner of his mouth, clicked on the DOU+ page of the last video, entered the number 20000 on the payment page, paid casually, then put down the phone, and opened his workbook.
