The key to data use in the era of big data is

The key to data usage in the era of big data is data reuse.

Big data refers to a collection of data whose contents cannot be captured, managed and processed by conventional software tools in a certain period of time. Big data has five characteristics, namely, mass, high speed, diversity, low value density and authenticity. It has no statistical sampling method, but only observes and tracks what happens. The use of big data tends to be predictive analysis, user behavior analysis or other advanced data analysis methods.

Gartner, a big data research organization, has given a definition that big data needs a new processing mode in order to have stronger decision-making, insight and process optimization capabilities to adapt to massive, high-growth and diversified information assets.

Characteristics of the era of big data:

1, with a large amount of data. The starting unit of big data measurement is at least P( 1000 t), E (1 100t) or Z (1 100t).

2. There are many kinds. Include weblogs, audio, video, pictures, geographical location information, etc. All kinds of data put forward higher requirements for data processing ability.

3. Low value density. For example, with the wide application of the Internet of Things, information perception is everywhere, and there is a huge amount of information, but the value density is low. How to "purify" the value of data faster through powerful machine algorithms is an urgent problem to be solved in the era of big data.

4. Fast speed and high timeliness. High timeliness requirements. This is the most striking feature that distinguishes big data from traditional data mining. The existing technical framework and route can no longer handle such a huge amount of data efficiently, and for relevant institutions, if the collected huge amount of information can not be processed in time to feed back effective information, it will not be worth the candle.

It can be said that the era of big data poses new challenges to human data control ability, and also provides unprecedented space and potential for people to gain deeper and more comprehensive insight.

The above contents refer to Baidu Encyclopedia-Big Data Era.