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Last Week in AI #81

Automated chemical synthesis, using heartbeats to detect deepfakes, and more!

Last Week in AI #81

Image credit: IBM via IEEE Spectrum

Mini Briefs

Robotics, AI, and Cloud Computing Combine to Supercharge Chemical and Drug Synthesis

IBM recently demoed a complex system for chemical testing and drug synthesis. The system has an AI component that predicts the results of chemical reactions, and a fully automated robotic experiment setup that runs chemical tests 24/7. Users can access the remote robotics lab online, and IBM can also install the system on-premise. With these tools working together, IBM is hoping to reduce typical drug discovery and verification time by half.

AI researchers use heartbeat detection to identify deepfake videos

Researchers from multiple groups are tackling the challenge of detecting deepfake videos by analyzing the apparent heartbeat of the people depicted in the video. This is possible, because a person’s blood flow changes their skin color ever so slightly, and this change is often detectable via a process called photoplethysmography (PPG). Because deepfakes are not currently optimizing to generate realisitic heartbeats, temporal or spatial anomalies in PPG signals allow resesarchers to detect deepfakes with a 97% accuracy.

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Concerns & Hype

Analysis & Policy

  • China’s new AI trade rules could hamper a TikTok sale - TikTok’s attempt to sell itself and avert a possible US ban may run into some complications. The Wall Street Journal reports that China has unveiled new restrictions on AI technology exports that could affect TikTok.

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