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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.

NAVY SEES AI IN ITS FUTURE BUT ADMITS WE STILL HAVE A LOT TO LEARN

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.

AI CHATBOT CHATGPT CAN INFLUENCE HUMAN MORAL JUDGMENTS, STUDY SAYS

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.

ARTIFICIAL INTELLIGENCE: SHOULD THE GOVERNMENT STEP IN? AMERICANS WEIGH IN

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

In recent years, the field of machine learning has experienced exponential growth, with applications in diverse domains such as healthcare, finance, and automation. One of the most promising areas of development is TinyML, which brings machine learning to resource-constrained devices. We will explore the concept of TinyML, its applications, and its potential to revolutionize industries by offering intelligent solutions on a small scale.

TinyML is an emerging area in machine learning that focuses on the development of algorithms and models that can run on low-power, memory-constrained devices. The term TinyML is derived from the words tiny and machine learning, reflecting the goal of enabling ML capabilities on small-scale hardware. By designing efficient models that can operate in such environments, TinyML has the potential to bring artificial intelligence (AI) to billions of devices that were previously unable to support it.

As the number of IoT devices skyrockets, so does the need for intelligent, localized decision-making. Traditional cloud-based approaches to AI can be limited by factors such as latency, bandwidth, and privacy concerns. In contrast, TinyML enables on-device intelligence, allowing for faster, more efficient decision-making without the need for constant communication with the cloud.

Furthermore, the resource constraints of small devices necessitate efficient algorithms that consume minimal power and memory. TinyML addresses these challenges by optimizing models and leveraging specialized hardware to achieve impressive results, even with limited resources.

Several technologies and advancements have facilitated the growth of TinyML:

The potential applications of TinyML are vast, spanning various industries:

Wildlife Conservation: TinyML-enabled devices can help track and monitor endangered species, allowing for more effective conservation efforts and data collection.

While TinyML presents immense potential, it also faces several challenges that must be addressed to fully realize its capabilities:

Conclusion

TinyML is an exciting and rapidly growing field that promises to bring the power of machine learning to billions of small, resource-constrained devices. By optimizing ML models and leveraging cutting-edge hardware and software technologies, TinyML has the potential to revolutionize industries and improve the lives of people worldwide. As researchers and engineers continue to innovate and overcome the challenges facing TinyML, the future of this technology looks incredibly promising.

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TinyML: The Future of Machine Learning on a Minuscule Scale - Unite.AI

Amanda Morris, a press release writer at Northwestern University, describes an important astronomical effect in terms entertaining enough to be worth reposting here: The cosmos would look a lot better if the Earths atmosphere wasnt photobombing it all the time. Thats certainly one way to describe the airs effect on astronomical observations, and its annoying enough to astronomers that they constantly have to correct for distortions from the Earths atmosphere, even at the most advanced observatories at the highest altitudes. Now a team from Northwestern and Tsinghua Universities have developed an AI-based tool to allow astronomers to automatically remove the blurring effect of the Earths atmosphere from pictures taken for their research.

Dr. Emma Alexander and her student Tianao Li developed the technique in the Bio Inspired Vision Lab, a part of Northwesterns engineering school, though Li was a visiting undergraduate from Tsinghua University in Beijing. Dr. Alexander realized that accuracy was an essential part of scientific imaging, but astronomers had a tough time as their work was constantly being photobombed, as Ms. Morris put it, by the atmosphere.

Weve spent plenty of time in articles discussing the difficulties of seeing and the distortion effect that air brings to astronomical pictures, so we wont rehash that here. But its worth looking at the details of this new technique, which could save astronomers significant amounts of time either chasing bad data or deblurring their own images.

Using a technique known as optimization and a more commonly known AI technique called deep learning, the researchers developed an algorithm that could successfully deblur an image with less error than both classic and modern methods. This resulted in crisper images that were both better scientifically but also more visually appealing. However, Dr. Alexander notes that was simply a happy side effect of their work to try to improve the science.

To train and test their algorithm, the team worked with simulated data developed by the team responsible for the upcoming Vera C Rubin observatory, which is set to be one of the worlds most powerful ground-based telescopes when it begins operations next year. Utilizing the simulated data as a training set allowed the Northwestern researchers to get a head start on testing their algorithm ahead of the observatorys opening but also tweak it to make it well-suited for use with what will arguably be one of the most important observatories of the coming decades.

Besides that usefulness, the team also decided to make the project open-source. They have released a version on Github, so programmers and astronomers alike can pull the code, tweak it to their own specific needs, and even contribute to a set of tutorials the team developed that could be utilized on almost any data from a ground-based telescope. One of the beauties of algorithms like that is they can easily remove photobombers even if they are less substantive than most.

Learn More:Northwestern AI algorithm unblurs the cosmosLi & Alexander Galaxy Image Deconvolution for Weak Gravitational Lensing with Unrolled Plug-and-Play ADMMUT Telescopes Laser Pointer Clarifies Blurry SkiesUT A Supercomputer Gives Better Focus to Blurry Radio Images

Lead Image: Different phases of deblurring the algorithm applies to a galaxy. Original image is in the top left, final image is the bottom right.Credit Li & Alexander

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Machine Learning Tidies Up the Cosmos - Universe Today