Tag: Algorithms

Using AI to discover stiff and tough microstructures

Every time you smoothly drive from point A to point B, you’re not just enjoying the convenience of your car, but also the sophisticated engineering that makes it safe and reliable. Beyond its comfort and protective features lies a lesser-known yet crucial aspect: the expertly optimized mechanical performance of microstructured materials. These materials, integral yet […]

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A new way to let AI chatbots converse all day without crashing

When a human-AI conversation involves many rounds of continuous dialogue, the powerful large language machine-learning models that drive chatbots like ChatGPT sometimes start to collapse, causing the bots’ performance to rapidly deteriorate. A team of researchers from MIT and elsewhere has pinpointed a surprising cause of this problem and developed a simple solution that enables […]

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How symmetry can come to the aid of machine learning

Behrooz Tahmasebi — an MIT PhD student in the Department of Electrical Engineering and Computer Science (EECS) and an affiliate of the Computer Science and Artificial Intelligence Laboratory (CSAIL) — was taking a mathematics course on differential equations in late 2021 when a glimmer of inspiration struck. In that class, he learned for the first […]

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Study: Smart devices’ ambient light sensors pose imaging privacy risk

In George Orwell’s novel “1984,” Big Brother watches citizens through two-way, TV-like telescreens to surveil citizens without any cameras. In a similar fashion, our current smart devices contain ambient light sensors, which open the door to a different threat: hackers. These passive, seemingly innocuous smartphone components receive light from the environment and adjust the screen’s […]

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Entrepreneur creates career pathways with MIT OpenCourseWare

When June Odongo interviewed early-career electrical engineer Cynthia Wacheke for a software engineering position at her company, Wacheke lacked knowledge of computer science theory but showed potential in complex problem-solving. Determined to give Wacheke a shot, Odongo turned to MIT OpenCourseWare to create a six-month “bridging course” modeled after the classes she once took as […]

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Q&A: A blueprint for sustainable innovation

Atacama Biomaterials is a startup combining architecture, machine learning, and chemical engineering to create eco-friendly materials with multiple applications. Passionate about sustainable innovation, its co-founder Paloma Gonzalez-Rojas SM ’15, PhD ’21 highlights here how MIT has supported the project through several of its entrepreneurship initiatives, and reflects on the role of design in building a holistic […]

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What to do about AI in health?

Before a drug is approved by the U.S. Food and Drug Administration (FDA), it must demonstrate both safety and efficacy. However, the FDA does not require an understanding a drug’s mechanism of action for approval. This acceptance of results without explanation raises the question of whether the “black box” decision-making process of a safe and […]

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New hope for early pancreatic cancer intervention via AI-based risk prediction

The first documented case of pancreatic cancer dates back to the 18th century. Since then, researchers have undertaken a protracted and challenging odyssey to understand the elusive and deadly disease. To date, there is no better cancer treatment than early intervention. Unfortunately, the pancreas, nestled deep within the abdomen, is particularly elusive for early detection.  […]

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Multiple AI models help robots execute complex plans more transparently

Your daily to-do list is likely pretty straightforward: wash the dishes, buy groceries, and other minutiae. It’s unlikely you wrote out “pick up the first dirty dish,” or “wash that plate with a sponge,” because each of these miniature steps within the chore feels intuitive. While we can routinely complete each step without much thought, […]

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Technique could efficiently solve partial differential equations for numerous applications

In fields such as physics and engineering, partial differential equations (PDEs) are used to model complex physical processes to generate insight into how some of the most complicated physical and natural systems in the world function. To solve these difficult equations, researchers use high-fidelity numerical solvers, which can be very time-consuming and computationally expensive to […]

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AI agents help explain other AI systems

Explaining the behavior of trained neural networks remains a compelling puzzle, especially as these models grow in size and sophistication. Like other scientific challenges throughout history, reverse-engineering how artificial intelligence systems work requires a substantial amount of experimentation: making hypotheses, intervening on behavior, and even dissecting large networks to examine individual neurons. To date, most […]

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A flexible solution to help artists improve animation

Artists who bring to life heroes and villains in animated movies and video games could have more control over their animations, thanks to a new technique introduced by MIT researchers. Their method generates mathematical functions known as barycentric coordinates, which define how 2D and 3D shapes can bend, stretch, and move through space. For example, […]

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A computer scientist pushes the boundaries of geometry

More than 2,000 years ago, the Greek mathematician Euclid, known to many as the father of geometry, changed the way we think about shapes. Building off those ancient foundations and millennia of mathematical progress since, Justin Solomon is using modern geometric techniques to solve thorny problems that often seem to have nothing to do with […]

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Automated system teaches users when to collaborate with an AI assistant

Artificial intelligence models that pick out patterns in images can often do so better than human eyes — but not always. If a radiologist is using an AI model to help her determine whether a patient’s X-rays show signs of pneumonia, when should she trust the model’s advice and when should she ignore it? A […]

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AI accelerates problem-solving in complex scenarios

While Santa Claus may have a magical sleigh and nine plucky reindeer to help him deliver presents, for companies like FedEx, the optimization problem of efficiently routing holiday packages is so complicated that they often employ specialized software to find a solution. This software, called a mixed-integer linear programming (MILP) solver, splits a massive optimization […]

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A new optimization framework for robot motion planning

It isn’t easy for a robot to find its way out of a maze. Picture the machines trying to traverse a kid’s playroom to reach the kitchen, with miscellaneous toys scattered across the floor and furniture blocking some potential paths. This messy labyrinth requires the robot to calculate the most optimal journey to its destination, […]

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What does the future hold for generative AI?

Speaking at the “Generative AI: Shaping the Future” symposium on Nov. 28, the kickoff event of MIT’s Generative AI Week, keynote speaker and iRobot co-founder Rodney Brooks warned attendees against uncritically overestimating the capabilities of this emerging technology, which underpins increasingly powerful tools like OpenAI’s ChatGPT and Google’s Bard. “Hype leads to hubris, and hubris […]

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New method uses crowdsourced feedback to help train robots

To teach an AI agent a new task, like how to open a kitchen cabinet, researchers often use reinforcement learning — a trial-and-error process where the agent is rewarded for taking actions that get it closer to the goal. In many instances, a human expert must carefully design a reward function, which is an incentive […]

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Search algorithm reveals nearly 200 new kinds of CRISPR systems

Microbial sequence databases contain a wealth of information about enzymes and other molecules that could be adapted for biotechnology. But these databases have grown so large in recent years that they’ve become difficult to search efficiently for enzymes of interest. Now, scientists at the McGovern Institute for Brain Research at MIT, the Broad Institute of […]

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Technique enables AI on edge devices to keep learning over time

Personalized deep-learning models can enable artificial intelligence chatbots that adapt to understand a user’s accent or smart keyboards that continuously update to better predict the next word based on someone’s typing history. This customization requires constant fine-tuning of a machine-learning model with new data. Because smartphones and other edge devices lack the memory and computational […]

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Computational imaging researcher attended a lecture, found her career

Soon after Kristina Monakhova started graduate school, she attended a lecture by Professor Laura Waller ’04, MEng ’05, PhD ’10, director of the University of California at Berkeley’s Computational Imaging Lab, who described a kind of computational microscopy with extremely high image resolution. “The talk blew me away,” says Monakhova, who is currently an MIT-Boeing […]

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MIT engineers are on a failure-finding mission

From vehicle collision avoidance to airline scheduling systems to power supply grids, many of the services we rely on are managed by computers. As these autonomous systems grow in complexity and ubiquity, so too could the ways in which they fail. Now, MIT engineers have developed an approach that can be paired with any autonomous […]

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Taking on giants: a QA with robotic vacuum startup Matic’s co-founder Mehul Nariyawala

They’re so commonplace now that they are scarcely worth mentioning, but robotic vacuum cleaners were at one point a revolutionary new device. The idea of a vacuum that could move around a home independently and suck up dust and debris reliably without a human guiding it seemed like sci-fi come to life, back when MIT […]

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UK government has been using AI for all sorts and it’s going as well as you might expect

The UK government is using deep learning algorithms, under the catch-all umbrella of AI, to help its various sections make decisions in welfare benefit claims, ascertaining cases of fraud, and even the scanning of passports. That’s all probably of no surprise whatsoever but as one investigation suggests, it’s opening a massive can of worms for […]

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AI copilot enhances human precision for safer aviation

Imagine you’re in an airplane with two pilots, one human and one computer. Both have their “hands” on the controllers, but they’re always looking out for different things. If they’re both paying attention to the same thing, the human gets to steer. But if the human gets distracted or misses something, the computer quickly takes […]

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Vise Intelligence is a new AI to assist — not replace — financial advisors

VentureBeat presents: AI Unleashed – An exclusive executive event for enterprise data leaders. Network and learn with industry peers. Learn More But here comes Vise to buck the trend. The seven-year-old New York City fintech former unicorn co-founded by two (at the time) 16-year-olds suffered a bout of bad press over the last several years, […]

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MIT scholars awarded seed grants to probe the social implications of generative AI

In July, MIT President Sally Kornbluth and Provost Cynthia Barnhart issued a call for papers to “articulate effective roadmaps, policy recommendations, and calls for action across the broad domain of generative AI.” Over the next month, they received an influx of responses from every school at MIT proposing to explore generative AI’s potential applications and […]

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Multi-AI collaboration helps reasoning and factual accuracy in large language models

An age-old adage, often introduced to us during our formative years, is designed to nudge us beyond our self-centered, nascent minds: “Two heads are better than one.” This proverb encourages collaborative thinking and highlights the potency of shared intellect. Fast forward to 2023, and we find that this wisdom holds true even in the realm […]

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How an archeological approach can help leverage biased data in AI to improve medicine

The classic computer science adage “garbage in, garbage out” lacks nuance when it comes to understanding biased medical data, argue computer science and bioethics professors from MIT, Johns Hopkins University, and the Alan Turing Institute in a new opinion piece published in a recent edition of the New England Journal of Medicine (NEJM). The rising […]

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