Computer science and technology

Profs. Ruonan Han and Qing Hu speak with Popular Science reporter Rahul Rao about their work with terahertz waves. “There’s a laundry list of potential applications,” says Hu of the promise of terahertz waves.

Prof. Stuart Madnick writes for The Wall Street Journal about how flaws in a company’s cybersecurity defenses can lead to cyberattacks. “Every decision regarding cybersecurity must weigh the benefits of not doing something (cost savings or the faster growth) against the increased risk to the organization,” writes Madnick.

MIT researchers have created a new computer algorithm that has allowed the mini cheetah to maximize its speed across varying types of terrain, reports Shi En Kim for Popular Science. “What we are interested in is, given the robotic hardware, how fast can [a robot] go?” says Prof. Pulkit Agrawal. “We didn’t want to constrain the robot in arbitrary ways.”

MIT researchers have used a new reinforcement learning system to teach robots how to acclimate to complex landscapes at high speeds, reports Emmett Smith for Mashable. “After hours of simulation training, MIT’s mini-cheetah robot broke a record with its fastest run yet,” writes Smith.

CSAIL researchers developed a new machine learning system to teach the MIT mini cheetah to run, reports James Vincent for The Verge. “Using reinforcement learning, they were able to achieve a new top-speed for the robot of 3.9m/s, or roughly 8.7mph,” writes Vincent.

Gizmodo reporter Andrew Liszewski writes that CSAIL researchers developed a new AI system to teach the MIT mini cheetah how to adapt its gait, allowing it to learn to run. Using AI and simulations, “in just three hours’ time, the robot experienced 100 days worth of virtual adventures over a diverse variety of terrains,” writes Liszewski, “and learned countless new techniques for modifying its gait so that it can still effectively loco-mote from point A to point B no matter what might be underfoot.”

Graduate student Matt Groh speaks with Scientific American reporter Sarah Vitak about his team’s work studying whether human detection or artificial intelligence is better at identifying deepfakes and misinformation online. “One of the things that we would suggest for the future development of these systems is trying to figure out ways to explain why the AI is making a decision,” says Groh.

TechCrunch reporter Brian Heater spotlights MIT startup Strio.AI, which is aimed at bringing autonomous picking and pruning to strawberry crops.

TechCrunch reporter Haje Jan Kamps writes that MIT researchers have developed an “electronically steerable terahertz antenna array, which operates like a controllable mirror.” The new device “may enable higher-speed communications and vision systems that can see through foggy or dusty environments.”

Prof. Stuart Madnick speaks with Ivan Pereira and Luke Barr of ABC News about the potential for Russia to launch cyberattacks on the U.S. and how Americans can prepare. "Cyberattacks and cyber security are not something we talk about a lot, but we need to," said Madnick. "This is not a brand new issue.”

Popular Science reporter Tatyana Woodall writes that CSAIL researchers have developed electromagnetic bot blocks that can reconfigure into various shapes and could potentially help astronauts build in space. “The electromagnetic lining of the 3D printed frames allows cubes to seamlessly attract, repel, or even turn themselves off,” writes Wood. “One cube takes a little over an hour to make, and only costs 60 cents.”

Prof. Julie Shah speaks with The Economist about her work developing systems to help robots operate safely and efficiently with humans. “Robots need to see us as more than just an obstacle to maneuver around,” says Shah. “They need to work with us and anticipate what we need.”

A new study by MIT researchers finds that mediation apps may have benefits for users in reducing anxiety and depression, reports The Economist. “Access to the app reduced the share of participants with moderate or severe anxiety by 13 percentage points, or 50%, compared to the control group. The share of participants with moderate or severe depression fell by 14 percentage points, or 47%.”

Yuanming Hu SM’19, PhD ’21 and Ye Kuang co-founded startup Taichi Graphics, a cloud-based platform which aims to make 3D content creation easier to develop, share and collaborate on, reports Rita Liao for TechCrunch. “Undergirding the platform is its open-source programming language Taichi, which offers a high-performance computation on spatially sparse data structures like those from 3D visual graphics,” writes Liao.

Researchers from MIT and the Federal Reserve Bank of Boston have developed a theoretical, high-performance transaction processor for a Central Bank Digital Currency using open-source software, reports Jason Brett for Forbes. "What is clear is that open-source software provides an important way to collaborate, experiment, and implement,” says Neha Narula, director of MIT’s Digital Currency Initiative. “In addition to supporting collaboration, monetary systems benefit from transparency and verifiability, which open-source offers."