Explainer: How computers "see" faces and other objects

Computers started to be able to recognize human faces in images decades ago, but now artificial intelligence systems are rivaling people's ability to classify objects in photos and videos.

Archaeologists urge Albania to protect underwater heritage

Hundreds of Roman and Greek artifacts and ancient shipwrecks sitting under Albania's barely explored coastline are in danger of falling prey to looters or treasure hunters if not properly protected, researchers and archaeologists ...

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