A visitor talks with a doctor after having a health check that requires only an eye scan, an AI technology developed by Tencent, Oct 18. [Photo/chinadaily.com.cn]

"It surprised me to see so many companies from all over the world here," said Sergei, an exhibitor from Russia. 

"I'm especially interested to see some of the AI technologies on display, as China is one of the leading countries in this area, and the World Internet Conference introduces new products, software, ideas and concepts," he added.