Big data is an emerging discipline generated by the intersection of many disciplines and statistics. Big data involves data mining and cloud computing, so it is a computer major. Widely distributed and applied in many industries.

Retail industry: mainly based on customer marketing analysis, customer consumption information can be analyzed through big data technology. Understand customers' consumption habits, consumption direction, etc. , so that shopping malls can place goods and shelves more reasonably, plan marketing plans, and recommend goods.

Financial industry: In the financial industry, data is life, and a large amount of customer transaction data has been accumulated in its information system. Through big data, we can analyze customers' behaviors, prevent fraud and analyze financial risks.

Medical industry: Big data can help analyze epidemic information and make corresponding prevention and control measures. Trend analysis of human health can improve the diagnostic accuracy and drug effectiveness in electronic medical records, medical research and development and clinical trials.

Manufacturing: The demand for big data in this industry is mainly reflected in product development and design, supply chain management, production and after-sales service. Through data analysis, some unnecessary steps in product development are eliminated, and the process of product manufacturing and assembly is improved in time.