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A team of researchers has shown off a new machine-learning technique by enhancing the Event Horizon Telescope's images of a supermassive black hole at the center of a galaxy 55 million light-years from Earth. The technique, called PRIMO, enhances the fidelity and sharpness of radio interferometry images.

The Event Horizon Telescope (EHT), responsible for the original images, is an international collaboration capturing images of black holes using a virtual Earth-sized telescope. As incredible and iconic as the original images of the supermassive black hole at the center of Messier 87 were four years ago, they were still fuzzy in appearance. Researchers using PRIMO, which stands for principal-component interferometric modeling, have been able to give a bit of clarity to the original images.

Medeiros added the that width of the ring in the new image is smaller by around a factor of two, which she says will be "a powerful constraint" for theoretical models and tests of gravity.

By applying PRIMO to the original EHT images, computers scoured over 30,000 high-fidelity simulated images of gas accreting onto a black hole in order to find common patterns within the images. Those results were then "blended to provide a highly accurate representation of the EHT observations." The team then confirmed the newly rendered images were consistent with the EHT data and with theoretical expectations.

According to Medeiros, this is just the beginning for PRIMO. "If a picture is worth a thousand words, the data underlying that image have many many more stories to tell. PRIMO will continue to be a critical tool in extracting such insights."

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Fuzzy First Image Of A Supermassive Black Hole Gets A HIgh-Fidelity AI Makeover - Hot Hardware

Amazon President & CEO Andy Jassy attends the Los Angeles Premiere of Amazon Prime Video's "The Lord Of The Rings: The Rings Of Power" at The Culver Studios on August 15, 2022 in Culver City, California. (Photo by Kevin Winter/Getty Images)

Amazon CEO Andy Jassy signaled confidence that the company will get costs under control in his annual shareholder letter, where he also noted the tech giant was spending heavily on AI tools that have gained popularity in recent months.

In the letter, Jassy described 2022 as one of the harder macroeconomic years in recent memory and detailed the steps Amazon had taken to trim costs, such as shuttering its health care initiative Amazon Care and some stores across the country. The company had also slashed 27,000 corporate roles since the fall, marking the biggest rounds of layoffs in its history.

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There are a number of other changes that weve made over the last several months to streamline our overall costs, and like most leadership teams, well continue to evaluate what were seeing in our business and proceed adaptively, Jassy wrote.

The companys profitable cloud computing unit Amazon Web Services also faces short-term headwinds right now, despite growing 29% year-over-year in 2022 on a $62 billion revenue base, Jassy wrote. He noted challenges for the unit stem from companies spending more cautiously in the face of challenging current macroeconomic conditions.

Despite the cuts and turbulent times, Jassy said he strongly believes Amazon's best days are in front of us.

The Seattle company will continue to invest in specialized chips most used for machine learning, its advertising business as well as generative AI tools. The tools are part of a new generation of machine-learning systems that can converse, generate readable text on demand and produce novel images and video based on what theyve learned from a vast database of digital books and online text.

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Lets just say that LLMs and Generative AI are going to be a big deal for customers, our shareholders, and Amazon, Jassy wrote, using the abbreviated version of Large Language Models, or AI that can mimic human writing styles based on data they've ingested.

On Thursday, Amazon also announced several new services that will allow developers to build their own AI tools on its cloud infrastructure.

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Amazon's Jassy says AI will be a 'big deal' for company - KOMO News

Researchers have used machine learning to tighten up a previously released image of a black hole. As a result, the portrait of the black hole at the center of the galaxy Messier 87, over 53 million light years away from Earth, shows a thinner ring of light and matter surrounding its center in a report published today in The Astrophysical Journal Letters.

The original images were captured in 2017 by the Event Horizon Telescope (EHT), a network of radio telescopes around Earth that combine to act as a planet-sized super-imaging tool. The initial picture looked like a fuzzy donut, as described by NPR, but researchers used a new method called PRIMO to reconstruct a more accurate image. PRIMO is a novel dictionary-learning-based algorithm that learns to recover high-fidelity images even in the presence of sparse coverage by training on generated simulations of over 30,000 black holes. In other words, it uses machine learning data based on what we know about the universes physical laws and black holes specifically to produce a better-looking and more accurate shot from the raw data captured in 2017.

Black holes are mysterious and strange regions of space where gravity is so strong that nothing can escape. They form when dying stars collapse onto themselves under their gravity. As a result, the collapse squeezes the stars mass into a tiny space. The boundary between the black hole and its surrounding mass is called the event horizon, a point of no return where anything that crosses it (whether light, matter or Matthew McConaughey) wont be coming back.

What we really do is we learn the correlations between different parts of the image. And so we do this by analyzing tens of thousands of high-resolution images that are created from simulations, the astrophysicist and author of the paper Lia Medeiros of the Institute for Advanced Study in Princeton, NJ, told NPR. If you have an image, the pixels close to any given pixel are not completely uncorrelated. Its not that each pixel is doing completely independent things.

The researchers say the new image is consistent with Albert Einsteins predictions. However, they expect further research in machine learning and telescope hardware to lead to additional revisions. In 20 years, the image might not be the image Im showing you today, said Medeiros. It might be even better.

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Researchers used machine learning to improve the first photo of a black hole - Engadget

The Pentagon is hiring data scientists, technologists and engineers as part of its effort to incorporate artificial intelligence into the machinery used to wage war.

The Defense Department has posted several AI jobs on USAjobs.gov over the last few weeks, including many with salaries well into six figures.

One of the higher paying jobs advertised in the last few weeks is for a senior technologist for "cognitive and decision science" at the U.S. Navys Point Loma Complex in San Diego. That job starts at $170,000 and could pay as much as $212,000 year for someone who can help insert "cutting-edge technology" into Navy weaponry and equipment.

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The Pentagon, led by Secretary of Defense Lloyd Austin, is looking to pay as much as $200,000 per year for AI specialists who can help automate and speed up decision-making in the military. (AP Photo/Alex Brandon)

That includes technologies such as "augmented reality, artificial intelligence, human state monitoring, and autonomous unmanned systems."

The Navy is also looking to hire a manager at Naval Information Warfare Systems Command in South Carolina to work on adding AI applications to support the "expeditionary warfighting, decision intelligence and support functions of the military," and a data scientist to help look for ways to incorporate AI into the decision-making processes of Naval Special Warfare Command.

This month, Chief of Naval Operations Michael Gilday said the Navy was moving quickly to use AI and said he imagined the use of "minimally manned" ships before moving to fully autonomous ships.

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Chief of Naval Operations Admiral Michael Gilday has said the Navy is looking for semi-autonomous ships as a stepping stone to full automation, and says AI is a big part of the equation. (Chip Somodevilla/Getty Images)

The Department of Defenses Chief Digital and Artificial Intelligence Office (CDAO) is also looking to hire two AI experts at jobs that start at $155,000. CDAO, which was established last year, is working to accelerate the use of AI to "generate decision advantage" in wartime the office is looking to hire a supervisory program manager and a supervisory computer scientist.

Elsewhere, the Air Force is looking to hire a senior scientist in the field of "human machine teaming" who will guide programs in which "humans, machines, artificial intelligence, autonomous systems, and technology-centric solutions are the focus of the research." That job, based at Wright-Patterson Air Force Base in Ohio, starts at $156,000.

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The Pentagon is looking at "human machine teaming" as it examines how to make faster, more effective decisions in wartime. (Reuters/Ints Kalnins)

The U.S. Armys Futures Command headquarters in Austin, Texas, is hiring a systems integration director to work with AI and other technology to "provide warfighters with the concepts and future force designs needed to dominate a future battlefield."

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And the National Geospatial-Intelligence Agency in Springfield, Virginia, is looking for a senior scientist for analytic technologies to research "machine learning and artificial intelligence methods to automate the analysis of images, video or other sensor data; modeling for anticipatory intelligence; human-machine teaming," among other things. That job starts at $141,000 per year.

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Pentagon goes on AI hiring spree to bring machine learning capabilities to the battlefield - Fox News

The partnership deepens Alteryx's commitment to customers and their democratization journey through investments in governance, ethical AI, and machine learning model management

IRVINE, Calif., April 13, 2023 /PRNewswire/ -- Alteryx, Inc.(NYSE: AYX), the Analytics Cloud Platform company, has announced a strategic investment in Fiddler, a pioneer in Model Performance Management (MPM), to augment Alteryx Machine Learning within the Alteryx Analytics Cloud Platform. With this investment from Alteryx Ventures, joint customers will be able to better operationalize how they build enterprise-level machine learning pipelines with increased governance.

Fiddler is an MPM provider that offers advanced model monitoring and model governance capabilities. As Alteryx democratizes analytics for all employees across all systems at many of the world's largest and most complex enterprises, this investment in Fiddler will help customers establish stronger governance and ethical AI practices.

"Alteryx recognizes the importance of operationalizing machine learning to accelerate insights and time to value," said Asa Whillock, vice president and general manager, Alteryx Machine Learning at Alteryx. "With Fiddler, we aligned around a common vision of democratizing machine learning and managing the performance of machine learning models. We expect our customers will be able to transform ML predictions into consistently better business decisions at a faster pace."

Commenting on this partnership, Krishna Gade, founder and CEO of Fiddler, said, "As organizations launch more ML models and AI applications into production, it is imperative to validate, monitor, and retrain in a continuous fashion. We are proud to partner with Alteryx to help customers connect model and AI performance to KPIs that drive better business outcomes and help build trust into AI."

Alteryx Ventures invests in companies with innovative technology and services that complement Alteryx's analytics and data science products and encourage innovation within the analytics ecosystem. Alteryx's vision centers on enabling every person to achieve breakthrough outcomes from data through analytics automation, data science, and unprecedented ease of use.

Learn more about Alteryx Machine Learning here.

About AlteryxAlteryx (NYSE: AYX) powers analytics for all by providing our leading Analytics Automation Platform. Alteryx delivers easy end-to-end automation of data engineering, analytics, reporting, machine learning, and data science processes, enabling enterprises everywhere to democratize data analytics across their organizations for a broad range of use cases. More than 8,000 customers globally rely on Alteryx to deliver high-impact business outcomes. To learn more, visit http://www.alteryx.com.

Alteryx is a registered trademark of Alteryx, Inc. All other product and brand names may be trademarks or registered trademarks of their respective owners.

SOURCE Alteryx, Inc.

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Alteryx Ventures Announces Strategic Investment in Fiddler to Boost ... - PR Newswire