Big data refers to a collection of data that cannot be captured, managed and processed by conventional software tools within a certain time range. It is a massive, high-growth and diversified information asset, which needs a new processing mode to have stronger decision-making, insight and discovery, and process optimization ability.
With the advent of the cloud era, big data has attracted more and more attention. The analyst team believes that big data is usually used to describe a large number of unstructured data and semi-structured data created by a company. When it is downloaded to a relational database for analysis, it will take too much time and money.
Big data analysis is often associated with cloud computing, because real-time analysis of large data sets requires a framework such as MapReduce to distribute work to dozens, hundreds or even thousands of computers.
Extended data:
Three levels of big data:
1, theory, theory is the only way of cognition, and it is also a widely recognized and disseminated baseline. Here, we can understand the overall description and characterization of big data by the industry from the definition of its characteristics; From the discussion of the value of big data, deeply analyze the preciousness of big data; Insight into the development trend of big data; This paper examines the long-term game between people and data from the special and important perspective of big data privacy.
2, technology, technology is the means to reflect the value of big data and the cornerstone of progress. From the development of cloud computing, distributed processing technology, storage technology and sensing technology, this paper expounds the whole process of big data from collection, processing and storage to the formation of results.
3. Practice, practice is the ultimate value embodiment of big data. Here, we describe the beautiful scenes that big data has shown and the blueprint that will be realized from four aspects: Internet big data, government big data, enterprise big data and personal big data.
Baidu Encyclopedia-Big Data