Big data buzz prevents slide back into poverty

GUIYANG, Jan. 31 (Xinhua) -- Late one evening in the rugged mountains of southwest China's Guizhou Province, village official Lei Bingchao's phone buzzed with a message. Notably, this was not from a friend or a colleague, but from an algorithm.

The message signaled a warning that fellow villager Yang Xilong had recently incurred unusually high medical expenses, and it might put his family at risk of slipping into