Uncertainty is because the amount of information we have to be able to accurately judge is too small, less information affects the conditions of our judgment, which is why we say that information can reduce uncertainty.

Big data itself is not a single concept, today's big data has developed into a huge ecosystem, involving the industry chain is also constantly improving and developing. With the gradual maturation of the big data technology system, the application of big data on the ground has begun to gradually unfold, with many industry enterprises have to realize the business of the cloud, the future application of big data will be more and more scenarios, big data built up the value of the space also has great potential.