Troika, a self-driving robot made by LG Electronics, moves around for visitors at the Incheon International Airport in Incheon, South Korea. Photo: AP/Ahn Young-joon

Topic |   Artificial intelligence
Troika, a self-driving robot made by LG Electronics, moves around for visitors at the Incheon International Airport in Incheon, South Korea. Photo: AP/Ahn Young-joon
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