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Deepfakes – essentially putting words in someone else’s mouth in a very believable way – are becoming more sophisticated by the day and increasingly hard to spot. Recent examples of deepfakes include Taylor Swift nude images, an audio recording of President Joe Biden telling New Hampshire residents not to vote, and a video of Ukrainian President Volodymyr Zelenskyy calling on his troops to lay down their arms. Although companies have created detectors to help spot deepfakes, studies have found that biases in the data used to train these tools can lead to certain demographic groups being unfairly targeted. ...... Read Full article on GretAi

My colleagues and I have built a robot composed of many building blocks like the cells of a multicellular organism. Without a “brain” or a central controller in the system, our robot, dubbed Loopy, relies on the collective behavior of all of its cells to interact with the world. In this sense, we call Loopy a robotic swarm. But Loopy can also be seen as a single robot since all the cells are connected; therefore, Loopy is also “a swarm of one.” This research could lead to adaptive robots that tailor their shapes and movements to their environments – for example, in environmental cleanup applications. Loopy is a primitive form of mult...... Read Full article on GretAi