By CGTN's Zheng Yibing

China's 2017 International Big Data Industry Expo is underway in the southwestern city of Guiyang. Over 50,000 visitors from around the world have gathered there to see the latest in big data technology, and how the most advanced, or black technology, changes into reality.

Over 50,000 visitors from around the world attend this year’s Guiyang Big Data Expo to see the latest in big data technology demonstrated by over 300 enterprises around the world. /CGTN Photo

At this year’s expo, visitors can learn more about what's to come, and knowing how to use big data is becoming more important.

Exhibits from over 300 enterprises are showing that big data is being applied in various fields across the world, like in medicine, space science, and smart city construction.

Application of big data is found in almost all corners of human’s society, and such example is demonstrated in the field of medicine at the expo. /CGTN Photo

However, most visitors to this year's expo seem more interested in big data's practical uses, like buying things online. The expo shows that new devices are now making 3D online shopping a reality, like mobile phones and virtual reality devices at home.

By clicking on a simple app, users can access 3D content online, zooming in and out and rotating  pictures in order to get a full view of the product. New virtual reality technology is making online shopping more enjoyable as well.

It's even become possible to make purchases with a simple smile.  Many exhibitors demonstrate how facial recognition is being applied, and such technology is also used in payments without a wallet or cellphone app.

Many advanced technologies in the past have been or are being applied in various fields of human’s life. In the expo, a payment methods via face recognition helps people to buy things in shops when they do not take their wallet or cell phone. /CGTN Photo

Visitors are lining up for the experience of such devices, which would be put into market very soon.

Many more conveniences are made possible by big data technologies, and the field is developing fast.

Logo of Big Data Expo 2017 /CGTN Photo

Zhan Menglai, an Internet engineer visiting the expo, said big data is transforming human society, and by analyzing the development of the industry, people could understand what has worked so far, and where humans are heading.

Over 100 new applications of the big technologies are being displayed in their role of changing the world, and the host of the expo in Guiyang said they hope in next year’s expo more inventions would further help make people’s life easier.