Big data is not the worst of the worst majors, but a very promising field.

Big data, or huge data, refers to information that is so large that it cannot be captured, managed, processed, and organized in a reasonable amount of time by mainstream software tools to help businesses make more positive decisions.

In The Age of Big Data by Viktor Mayer Sch?nberg and Kenneth Kukier, big data refers to the use of all data without the shortcut of random analysis (sampling).

The 5V characteristics of Big Data (proposed by IBM): Volume, Velocity, Variety, Value, Veracity.

The term "big data" is listed in the "Dictionary of New Chinese Words (2000-2020)" by the Commercial Press as one of the top ten "new words of the times" with the highest vitality index in China in the past 20 years.

The value of big data is reflected in the following aspects:

(1) Enterprises that provide products or services to a large number of consumers can use big data to carry out precision marketing.

(2) Small, medium and micro enterprises that do small and beautiful models can use big data to do service transformation.

(3) facing the pressure of the Internet must be transformed under the potatoes of the traditional enterprises need to keep pace with the times to take full advantage of the value of big data.