Forbes reporter Marshall Shepherd highlights the Probabilistic Bias Correction tool, a new AI system developed by MIT researchers that could extend weather forecasting predictability beyond two weeks.
MIT researchers have developed the Probabilistic Bias Correction (PBC) tool, which “uses machine learning to identify systematic bias in a model and make corrections” to improve weather forecasts, reports The Verge’s Justine Calma. “The researchers found that PBC improved the accuracy of a leading physics-based weather model by the European Centre for Medium-Range Weather Forecasts (ECMWF) for 98 percent of precipitation and 92 percent of temperature targets,” notes Calma. “The machine learning framework also doubled the accuracy of ECMWF’s new AI forecasting system in the study’s analysis.”
Gizmodo’s Ellyn Lapointe spotlights the Probabilistic Bias Correction (PBC) tool developed by MIT researchers to “correct systemic errors in forecast models and improve the accuracy of their subseasonal outlooks.” “Extreme weather has the largest impact on our society and improved forecasts of these events can yield large societal benefits,” says Research Scientist Judah Cohen. “Interestingly, previous bias correction schemes actually made forecasts of extreme weather worse, and our model showed clear improvement of extreme weather forecasts.”
MIT researchers have developed an AI system “that not only minimizes forecasting errors, but learns from its inevitable mistakes through a method called postprocessing,” writes reporter Andrew Paul for Popular Science. “Their AI postprocessing integration blew the existing forecasting models out of the water,” notes Paul. “Such massive improvements could soon help the farmers and energy providers who already rely on subseasonal forecasts, but the benefits may even save lives.”
Research Scientist Judah Cohen speaks to USA Today’s Doyle Rice, Dinah Voyles Pulver and Janet Loehrke about the intensity of the polar vortex this year, and his predictions on what sort of weather the upcoming winter season will bring across the country. “The polar vortex is no longer record strong (signaling a milder winter) and it is actually a bit weaker than normal as it is undergoing a polar vortex stretch,” says Cohen. "It looks like that over the next two weeks the PV will be near normal or slightly weaker than normal.”
Quanta Magazine’s Marlowe Starling highlights a 2014 study by MIT researchers that found that coral cilia “interact with the boundary layer by rapidly whipping about to generate swirls of fresh, oxygenated seawater.” The researchers “not only modeled the tiny vortices created by the cilia for the first time, but also revealed the cilia’s importance for survival and metabolism,” notes Starling.
MIT researchers have developed a new, breathable hydrogel material that is “packed with microscopic air tunnels inspired by the way human lungs move oxygen” and allows heat and sweat to escape, reports Luis Prada for VICE. “The material proved to be about 10 times more breathable than conventional hydrogels and retained about 95 percent of its airflow even after being stretched 10,000 times,” explains Prada.
MIT researchers have created a new building design model that could enable engineers to construct buildings and bridges that use less materials, writes Tech Briefs’ Andrew Corselli. “Traditional topology optimization essentially starts with a blank space and tries to figure out at each point in this blank space: ‘Should there be material,’ ‘should there not be material’ from an efficiency standpoint,” says Prof. Josephine Carstensen. “Our approach populates the space with a bunch of lines that are instead candidates for ‘should there be material’ or ‘should there not be material.’ By using this line approach, we have the opportunity to have more control.”
To explain the longevity of a 1,900-year-old latrine, Scientific American’s Sam Macdonald highlights a study by Prof. Admir Masic that found the bright white chunks, or lime clasts, in Roman concrete may help preserve ancient structures. Masic explains that the findings strengthen “the idea that carbonates are more dynamic in these systems and play a fundamental role, not a marginal one.”
Research Affiliates Mathilde Poyet and Mathieu Groussin are featured by The New York Times Magazine reporter Jeneen Interlandi for their comprehensive fieldwork collecting diverse, microbial samples from communities across the globe to understand how differences in diet, lifestyle and industrialization affect microbiome health. “Microbes don’t like antibiotics, for obvious reasons,” Groussin says. “They don’t like C-sections, which rob them of the opportunity to colonize new human territory. And they hate ultra processed diets. All three of those are more prevalent in an industrialized world.”
MIT researchers have developed a non-invasive, wearable pacemaker that stimulates the heart using ultrasound, writes Physics World reporter Tami Freeman. “For cardiac pacing, we envisage that the final goal of NUP [Non-Invasive Ultrasound Pacemaker] technology is to be a permanent alternative to a long-term implanted pacemaker,” says Prof. Xuanhe Zhao. “More broadly, we are interested in expanding ultrasound-enabled bioelectronic medicine beyond cardiac pacing toward other organs and therapeutic applications where non-invasive, spatially precise modulation could have clinical impact.”
Prof. David Simchi-Levi speaks with Seb Murray of the Financial Times about how in an effort to increase their supply-chain resilience, companies are increasingly investing in digital tools to map supply chains, identify hidden vulnerabilities across supplier networks and prepare contingency plans. “It’s not enough to use intuition and experience,” Simchi-Levi explains. “You need data and analytics.”
Researchers at MIT have developed a new online tool called the “AI Labor Exposure Map,” which breaks down different job tasks by those that can be performed by AI, and those that cannot. The team found that, “[i]n many cases, the human-centric parts of a job are still essential,” reports Hiawatha Bray for The Boston Globe. “Instead of laying off workers, an employer could use the research to identify tasks that could be automated, so that the workers can be reassigned to handle only the uniquely human tasks.”
It may sound fishy, but Prof. Benedetto Marelli and postdoc Giorgio Rizzo have developed a method to up-cycle seafood waste into a coating for seeds that could help plants better withstand drought, while also creating more nutritious and sustainable crops. “It all starts with the idea that we need to find new ways to grow food and, in particular, find new ways to decrease the amount of fertilizers we use,” says Marelli, during an appearance on GBH's Curiosity Desk.
MIT researchers have developed a new traffic navigation system that more accurately reflects travel time by including parking data, reports Catherine Parotta for Boston 25. “What we can do is figure out if you’re best off trying this parking lot first, even if it’s farther than the closest parking lot,” explains Prof. Cathy Wu. Graduate student Cameron Hickert adds that: “We hope that this can help people make better decisions."