While the development of big data and artificial intelligence is very good, but it is still difficult to meet the requirements of the company if you study on your own, when I studied big data for a year, every day on the Internet to look for some free information and video to see, but no one can help me to solve the problem, so it is very difficult to learn is very slow, and then barely understand some of the backstage, hadoop knowledge, but it can only be said to be fur, just to understand some simple knowledge, the company still do not want to. Understand some simple knowledge, the company as usual do not, and then reported a class training for half a year, the face of the 2 found a job, when the world is not deep to give 7,000 on the dry, and then to stay a long time on the jump ship, almost doubling the salary. So ah, their own self-study is a waste of time is not good to learn, my experience, I hope to help you

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