My opinion of Big data

Through this period of time to learn the teacher Wang course, record some of my understanding of big data.
What does big data bring to us?

User behavior analysis is a very wide-area concept, as the name implies, is to analyze the user's daily behavior habits, I remember before I did a mobile user behavior analysis System. Access information is recorded primarily through log4j, and log logs are analyzed regularly. Finally, the inflow and outflow of each button on each page is analyzed. This is actually a data analysis, but also far not up big data category, imagine the TB even petabytes of data analysis of what the concept. Big data can be summarized as 5 V, large data volume (Volume), speed (velocity), type multiple (Variety), value (value), authenticity (Veracity). Big data as the most hot IT industry vocabulary, followed by the data Warehouse, data security, data analysis, data mining, etc. around the use of big data business value has gradually become the industry's interest in the profit focus. With the advent of the Big Data era, big data analysis has emerged.
One of the simplest examples is the supermarket items are placed. We can use the mahout algorithm to infer the similarity of each item through the habit of shopping in the supermarket, for example, the user who buys beer is used to buying diapers and peanuts. So we can put these three kinds of objects closer. This will bring more sales to the supermarket.
Well, it's intuitive, and that's one of the main reasons why I'm in touch with big data.

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My opinion of Big data