By+Tang+Yuankai

Recently， a female student in Shanghaibased East China Normal University received a text message from a faculty member， which said， “Last month， you spent less on meals. Are you in financial difficulty？ If so， please contact me via phone， text message or e-mail.”

The student posted the screenshot of the message on her micro-blog. She said that her meal card spending dropped because she was on a diet. Nonetheless， she was touched by the schools care for her.

This “misunderstanding” could not have existed if not for big data. The East China Normal University has developed a data mining system to automatically track studentsmeal card spending. If a students spending falls under a certain level， a designated faculty member will send the student a short message to check whether he or she is having a hard time financially.

In response to concerns about whether this constitutes an invasion of privacy， the school said that the system is an internal work system， and all data are kept confidential and will not be leaked. Furthermore， communication with students is anonymous， so even the faculty member sending a message does not know the identity of the student they are contacting.

Data boom

Many people， much like the dieting student， have not realized that big data， an emerging popular technology， is already very close to them. To promote peoples understanding of big data， the China Association of Science and Technology hosted a seminar on December 25， 2013， during which five scientists introduced the big-data technology and its application in daily life to reporters.

The phrase “big data” first appeared in a central government work report during Chinas annual legislative session this March， suggesting that the state leadership has realized its importance.

“From Silicon Valley to Beijing， big data has been a much-talked about topic. With smart phones and portable computing devices， any change in our behaviors， locations and biological data becomes data that can be recorded and analyzed，” said Tian Suning， Chairman of the China Broadband Capital Partners， a private equity firm focusing on media and communications investment.

Tian is a reputed advocate of Chinas cloud computing and big-data technology. He strongly recommends Big Data： A Revolution That Will Transform How We Live， Work， and Think， a pioneering book authored by Viktor MayerSchonberger， a professor at the University of Oxfords Internet Institute who predicted the dawning of the big-data era. Tian wrote the preface to the books Chinese edition， in which he said that the era of mass production， sharing and application of data has arrived.endprint

“After the birth of social media， big data inevitably arrived，” said Xu Zipei， an information management expert and Vice Chairman of the Chinese Association for Science and Technology， USA. Last October， Xu won a prize in China for his contribution to research on big data.

“Social media has revolutionized human society. After its inception， netizens all over the world began to contribute data. This special kind of information can be called unstructured data，” Xu said.

Even though social media has been around only a little more than eight years， yet the amount of unstructured data generated by it have already accounts for 75 percent of all data in the world， according to Xu.

Data-based

Are you Normal？， which has been streamed on the Internet weekly since April 10， is Chinas first variety show to be produced using the big-data technology.

The show is produced by Tencent， one of Chinas largest Internet service providers， in cooperation with Vivid Media （Shanghai） Co. Ltd.， a leading integrated all-media operator in the country.

As expected by its producer， the program has caused a big stir. On the first day it was released online， the show attracted 34.6 million views. The first three episodes generated more than 112 million clicks in the first month.

On its surface， the show is not much more than a combination of a talk show， a reality show and a quiz show. Ordinary people from all walks of life are invited to answer questions. After answering a question correctly， they win a prize. If a person answers all questions correctly， he or she can get a reward totaling 100，000 yuan （$16，000）. Every episode， a celebrity is invited to advise the contestant.

What really makes the program stand out， however， is its usage of big data to generate questions and answers for the show.

In every episode， a contestant is asked eight questions about whether a behavior or thought—such as marrying without owning a house or sleeping naked—is normal.

In order to find the most accepted answer， the production team surveys users of Tencent services. If more than half netizens surveyed reply positively， then the behavior or thought is considered “normal.”

The survey covers people in different areas and across different age groups. Some questions were answered by more than 9 million respondents.

Nowadays， it is difficult to tell whether something is a norm or not as people become more independent and individualistic and often run counter to traditional lifestyles or values， said netizen Li Shouzhi.endprint

Some data quoted by the programs host Hua Shao could be cause for concern. For instance， 92 percent of survey respondents said that they could not keep secrets， and 92 percent said that they once read messages on their lovers cellphones without permission.

Data collected by the programs production team act as a weathervane that can tell us about peoples beliefs， habits or aesthetic standards， according to an anonymous social scholar who was quoted by Shanghai-based Dongfang Daily.

Improving livelihood

Cheng Zhi， a government worker in Beijing， is a loyal fan of Are You Normal？. As a Ph.D. candidate specializing in sociology， she cares about the numbers behind the show.

“I think many people are just like me， trying to judge whether a behavior is normal or not through big data. They want to understand society better and find solutions to its problems，”Cheng said.

One episode shocked Cheng， however， when it was revealed that 55 percent of netizens said that they once considered committing suicide. “Yet this is very normal， given the pressure that Chinese people are currently subjected to，” Cheng said.

Cheng believes that a large population， social transformation and ballooning material needs create pressure， and finding methods to cope with this pressure is becoming a critical issue in China. “The most fundamental function of the big-data technology is to forecast what will happen in the future based on certain patterns，” she noted.

Cheng likened a city to an enormous data base. It is the source of big data， and it is also changed by big data. “We are still on the eve of the big-data era， yet we already can barely live without，” she said.

According to Cheng， she first became aware of the big-data technology after an online purchase of a book on pregnancy. “I bought the book for my sister， who wanted to have a baby. In the following 10 months， advertisements on products for expectant mothers and babies kept on popping up in my Internet browser，”she said. “The advertisements I received were customized to my online purchasing and inquiry records.”

“Recently， the big-data technology has been widely used in Internet finance and education sectors to tailor their services to specific client needs，” said Shuai Peng， Deputy Director of Internet search company Baidus Research and Development Center.

Shuai said that the big-data technology has made what was impossible in the past possible， and that it would certainly change peoples lives more profoundly in the near future.endprint

In the public service sector， the big-data technology has great potential to tap， said Xu Jihua， Feng Qina and Chen Ruzhen in a book on public administration in the big-data era that they co-authored.

The government controls big data in various fields such as population， traffic， healthcare， social insurance， taxation and urban planning， Chen said. Nonetheless， data kept by various government departments have not been effectively synthesized to serve the people， he commented.

For instance， to purchase a property， one has to fill in dozens of forms， while more than one third of information in the forms are already stored in government database， which could be retrieved automatically by keying in ones identification number.

Now， the big-data technology has given Beijing residents access to new public services when logging onto Mybj.gov.cn， a portal run by the Beijing Municipal Government， such as paying public utility bills and making appointments with doctors.

“This is just the beginning，” Xu said， who believes that the government will provide more customized services through the Internet in the future.endprint