Volume in the 4V characteristics of big data means?4V: volume, variety, velocity, value.

What is Big Data?

1. Big data is a collection of data whose contents cannot be crawled, managed and processed within a certain period of time using conventional software tools. It doesn't have statistical sampling methods, it just observes and tracks what happens. Usage of Big Data tends to favor the use of predictive analytics, user behavioral analytics, or certain other advanced data analytics methods.

2. The definition given by McKinsey Global Institute is: a collection of data that is so large that it greatly exceeds the capabilities of traditional database software tools in terms of acquisition, storage, management, and analysis, and is characterized by four major features: massive data size, rapid data flow, diverse data types, and low value density.

3, the strategic significance of big data technology does not lie in the mastery of huge data information, but in these data containing the meaning of specialized processing. In other words, if the big data is compared to an industry, then the key to profitability of this industry is to improve the "processing capacity" of the data, through the "processing" to achieve the "value-added" data. "

Data analytics talent is also very fast job-hopping, with an average job-hopping rate of 19.8 months. According to the China Business Federation Data Analytics Professional Committee statistics, the future of China's basic data analytics talent gap will reach 14 million, and in the BAT enterprise recruitment positions, more than 60% are recruiting big data talent, so the prospects are good, I hope you work hard.