Summary of the post-reading of the Big Data era

"Cloud computing", "big data" concept surging, a moment seems all the people have become "Big data experts", more or less can kan two sentences, in order to adapt to the development of the Times, take time to see the Big Data era, simple talk about their own understanding. The core of big data is forecasting, predicting the future through historical data. It is often seen as part of artificial intelligence, or, more precisely, as a machine learning. However, the analysis of big data and people's traditional thinking still has a great change.
The first shift is that in the big data age, we can analyze more data, and sometimes even all the data related to a particular phenomenon, instead of relying on random sampling, or sample = overall. The second shift is that there is so much research data that we are no longer pursuing precision, and of course we are not completely giving up precision, but not indulging in it. The third shift is the result of the first two shifts, namely, that we are no longer keen on finding causal relationships, but should look for the correlation between things, and I think the third shift is the top priority of the book. Big data tells us "what" rather than "why", in the big data age, we sometimes don't need to know the reason behind the phenomenon, we just have to let the data speak for themselves and the relationship will shine.
The relationship can predict the occurrence of events, the trend of the situation, in short, to predict the future, the book mentions a few examples of predicting the future: Farecast use the ticket sales data to predict the future price of the ticket; Google re-use search keywords to detect the spread of influenza Dr. McGregor used the vital signs of the baby to predict the occurrence of the infection; Murray re-used the old captain's log to find the ocean currents. Using big data, digging out the hidden value of data, will give us great help.
Big data can create value for us, but we must put an end to the excessive reliance of data in case we repeat Icarus's mistakes. Big Data helps us to do what we already have, and to deal with new things. But it is not magic wand, will not bring world peace, can not eradicate the poverty problem, but also can not create another Picasso.

Summary of the post-reading of the Big Data era