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big data

by 2C-09 FUNG SIN YU

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BIG
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DATA
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2C 09 FUNG SIN YU
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WHAT IS BIG DATA?
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big data is a large amounts of unstructured or structured data from various sources!
4V of big data
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volume veracity velocity variety
4V of BIG DATA
how can big data change our live
The amount of data generated in the world is an astronomical figure, because big data allows us to begin to predict accurately.
examples
For example, on Youtube, the homepage will list the short videos you may like, and Facebook will give priority to the posts you are interested in and follow.
In the retail industry, Amazon and Netflix can accurately predict and recommend the products you may want to buy because they can find Pattern from the huge amount of data on hand.
Privacy risk
Big data represents a huge and rapid increase in the ability to collect, store and analyze the previously unimaginable amount of data at a rapid and low cost, and bring boundless benefits to the maintenance of public security, national security, medical care, business and other important fields. , But at the same time impacts personal privacy in a way that is almost unsupervised.
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cons of big data
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increase productivity. Modern big data tools enable analysts to analyze more data faster, thereby increasing personal productivity. In addition, the insights gained from these analyses often enable organizations to increase productivity more broadly throughout the company
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pros of big data
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