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Among other things, Google unveiled new ways for its massive network of computers to identify images, as well as recommend, share, and organize photos. It also is launching an attempt to make its voice-controlled digital assistant more proactive and visual while expanding its audience to Apple's iPhone, where it will try to outwit an older peer, Siri.

Amazon’s attempt to?more neatly package up its mobile services should make its already-popular cloud platform a more appealing choice to mobile developers who want to build a cloud backend to their app but balk at the idea of having to sink a lot of time into developing it.

Amazon’s Prime Now facility on the northern edge of downtown Seattle.

Amid "extraordinary uncertainty" about the depth and duration of the crisis, the world could anticipate the worst economic fallout since the 1930s' Great Depression, the IMF chief warned.

Amid external challenges, official data indicating that China's total economic output grew by 6.9 percent in 2017 to more than 82 trillion yuan, and is expected to reach 90 trillion yuan in 2018, contributing to nearly one-third of global growth, according to Ning.