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ArXiv Computer Vision
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arXiv:2607.02553v1 Announce Type: new Abstract: Introduction: Objective neuroimaging biomarkers may improve Parkinson's disease motor assessment by capturing brain variation not directly observable from clinical examination. We used interpretable machine learning to predict current motor severity, measured by MDS-UPDRS Part III, from QSM and multiband multi-echo resting-state fMRI-derived ReHo features. Methods: Regional QSM and ReHo features were extracted from 28 participants, including 24 individuals with Parkinson's disease and 4 controls. Thirteen feature-set experiments evaluated imaging-only, clinical-only, imaging-plus-clinical, full, reduced, and multimodal inputs. Support vector regression, Elastic Net, Random Forest, and XGBoost models were trained using nested cross-validation. Performance was assessed using pooled held-out R^2, RMSE, MAE, Pearson correlation, permutation testing, and the proportion of participants predicted within +/-5 MDS-UPDRS Part III points. Results: Imaging-only models carried meaningful predictive signal, whereas the clinical-only model performed weakly. Full fMRI, full QSM, and clinical variables provided the strongest global fit, explaining 45.4% of variance in motor severity. Selected QSM plus clinical variables produced the most clinically close predictions, with 75.0% of participants predicted within +/-5 points and the lowest MAE among top-performing models. SHAP highlighted cerebellar, thalamic, striatal, insular, and motor cortical features. Conclusion: QSM and multiband multi-echo fMRI-derived ReHo capture distinct, interpretable dimensions of Parkinson's disease motor severity. These findings show that structural and functional imaging contribute differently depending on the clinical prediction goal.

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Kickbacks CLI

By Gabe Perez

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Techmeme
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Emily Shugerman / The San Francisco Standard: A profile of Rachel Whetstone, who has led comms for Google, Meta, Uber, Netflix, and now Sierra, as her husband Steve Hilton runs for California governor  —  Steve Hilton, the conservative British political operator running for governor of California, launched his longshot campaign in April 2025 …

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Peter Vercoe / Bloomberg: WiseTech co-founder Richard White steps down as chair amid a police probe over claims he exploited a woman's immigration status for sex; WTC jumps 7%+  —  Billionaire Richard White has stepped down as chair of WiseTech Global Ltd., just weeks after denying he was involved in human trafficking amid reports …

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Tiffany Hsu / New York Times: A profile of Bernadette Meehan, a US diplomat who became Wikimedia Foundation CEO in January, as Wikipedia faces threats from MAGA, AI, and foreign autocrats  —  Wikipedia is in peril.  —  In a world where trust in truth is crumbling, the grande dame of collective online fact-gathering is under threat on every front.

OpenAI Blog
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MUFG uses ChatGPT Enterprise to build an AI-native organization, improve workflows, and deliver new AI-powered financial services at scale.

Simon Willison Weblog
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tencent/Hy3

<p><strong><a href="https://huggingface.co/tencent/Hy3">tencent/Hy3</a></strong></p> New Apache 2.0 licensed model from Tencent in China:</p> <blockquote> <p>Hy3 is a 295B-parameter Mixture-of-Experts (MoE) model with 21B active parameters and 3.8B MTP layer parameters, developed by the Tencent Hy Team. Following the Hy3 Preview launch in late April, we gathered feedback from 50+ products and scaled up post-training with higher quality data. Today, we introduce Hy3, which outperforms similar-size models and rivals flagship open-source models with 2-5x parameters. It also shows significant gains in utility across various products and productivity tasks.</p> </blockquote> <p>The full-sized model is 598GB on Hugging Face, and the FP8 quantized one <a href="https://huggingface.co/tencent/Hy3-FP8/tree/main">is 300GB</a>. The context length is 256K.</p> <p>It's available for free <a href="https://openrouter.ai/tencent/hy3:free">on OpenRouter until July 21st</a>. I had it "Generate an SVG of a pelican riding a bicycle" there and got this:</p> <p><img alt="Flat-style cartoon illustration of a white pelican with a large orange beak riding a red bicycle across a pale blue background, its long orange legs stretched down to the pedals, with gray horizontal motion lines behind it suggesting speed." src="https://static.simonwillison.net/static/2026/hy3-pelican.png" /> <p>Tags: <a href="https://simonwillison.net/tags/ai">ai</a>, <a href="https://simonwillison.net/tags/generative-ai">generative-ai</a>, <a href="https://simonwillison.net/tags/llms">llms</a>, <a href="https://simonwillison.net/tags/pelican-riding-a-bicycle">pelican-riding-a-bicycle</a>, <a href="https://simonwillison.net/tags/llm-release">llm-release</a>, <a href="https://simonwillison.net/tags/ai-in-china">ai-in-china</a></p>

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Pragyan Kalita / Reuters: Syntiant, which develops low-power AI processors, files for a US IPO, reporting a $20.9M net loss on $64.5M in revenue for the three months ended March 31  —  Semiconductor and software company Syntiant Corp filed for an initial public offering in the United States on Monday.

Business Insider
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Microsoft's Xbox made some big bets that haven't paid off. INA FASSBENDER/AFP via Getty Images Microsoft is cutting 3,200 jobs from its Xbox business as part of a broader companywide reduction. Xbox CEO Asha Sharma told employees the business is "not healthy." The video game unit made big bets that failed to drive enough growth, analysts told Business Insider. The video game industry's problems are crystallizing inside Microsoft's Xbox. A fresh round of layoffs at the tech giant's games division shows how those pressures are coming home to roost as costs rise and players devote more time to a just a handful of favorites. Plus, there are some Microsoft-specific problems to address. "Our business today is not healthy," new Xbox CEO Asha Sharma wrote in an email announcing the layoffs, along with plans to divest four studios and make leadership changes — efforts all aimed at turning the gaming unit around. "We are operating at margins that are 3-10x lower than comparable platform and publishing businesses." Sharma started the job in February, succeeding longtime Xbox chief Phil Spencer. She joined Microsoft in 2024 from Instacart and previously served as president of product in Microsoft's Core AI business. Xbox will reduce its workforce by 3,200 roles through fiscal year 2027, including 1,600 effective Monday, Sharma said. The combined total will account for roughly 20% of the Xbox unit, and two-thirds of a companywide reduction also announced Monday, affecting 4,800 workers. Some of the company's game employees told Business Insider they had seen cuts coming because the business had been struggling, but were surprised by their scale. "Nobody was expecting it to be this bad," a laid-off employee from one Xbox studio said. Harder to level up The pandemic drove a boom in consumer spending for the games industry that has since faded, giving way to a steady drumbeat of layoffs. Excluding Monday's Xbox cuts, an estimated 4,600 jobs at studios big and small have been eliminated so far this year across the gaming industry, compared with 5,300 in all of 2025 and 14,600 in 2024, according to an online tally of termination announcements and news reports compiled by Farhan Noor, a technical artist in California. Sony's PlayStation division has also had layoffs in recent years. Meanwhile, the cost of making blockbuster games has ballooned as studios chase more ambitious releases with longer timelines and larger budgets. Some analysts estimate that "Grand Theft Auto VI," a highly anticipated game due out in November, cost developer Rockstar Games between $1 billion and $1.5 billion to make. Unlike mobile gaming, the most lucrative corner of the industry, console gaming requires costly dedicated hardware, making it harder to reach casual players, said Wedbush Securities analyst Michael Pachter. The AI boom has added to the pressure by driving up demand for memory and storage, making consoles more expensive to build, he added. For example, Microsoft has said it will raise Xbox console prices by $100 to $150, depending on the model, starting August 1. Sony made a similar move in April for its PlayStation 5 consoles. Both companies' current-generation consoles debuted in 2020, and console prices have historically fallen as a generation ages, not risen. Players are also spending more hours inside a small number of long-running, regularly updated games such as Epic Games' "Fortnite," making it harder for new releases to break through, Pachter said. "Grand Theft Auto VI" could intensify that dynamic if players devote months or even years to it. Consumer demand remains strong, with global industry revenue expected to grow 4.2% this year to $260 billion, said Joost van Dreunen, CEO of the analytics firm and a professor at New York University's Stern School of Business. "Game companies are expected to improve margins and, to achieve that, are cutting jobs," he said. 'Call of Duty' falls short Microsoft's problems, however, go beyond pandemic-era overhiring and broader industry pressures. The company's Xbox consoles have long trailed Sony Group's PlayStation and Nintendo's Switch machines in sales, while its Game Pass subscription service has struggled to deliver meaningful growth. Earlier in the decade, the company made two bold bets in hopes of making Game Pass more alluring. It acquired ZeniMax Media, the parent company of "Fallout" maker Bethesda Softworks, in 2021 for around $8 billion, and "Call of Duty" maker Activision Blizzard in 2023 for around $69 billion. In Monday's layoff email, Sharma said that not all of the company's game studios are driving returns. In a typical year, she said, "we lost 64 cents for every dollar we invested." Xbox CEO Asha Sharma wrote a memo to employees saying its time to "reset" the business. David Paul Morris/Bloomberg via Getty Images Mike Hickey, an analyst at Benchmark, described the layoffs and changes that Sharma outlined as necessary. "They overbuilt the organization," he said of Microsoft's Xbox business. "They added studios, employees, and management layers, all while growth was slowing. And they created a cost basis that's become difficult to support." Microsoft's Game Pass service was supposed to help offset a slowing console business by turning Xbox into a subscription-driven platform stocked with its own blockbuster games, Hickey said. The Activision deal was central to that bet, giving Microsoft control of "Call of Duty," one of the most successful game franchises of all time. But the first-person shooter series hasn't yet delivered the subscriber surge Microsoft hoped for, Hickey said, leaving Xbox with a larger content operation and not enough growth to support it. "It's pretty clear the game creates more value as an $80 premium release than a subscriber acquisition tool that really hasn't delivered," he said. Microsoft HR chief Amy Coleman said the jobs being cut at Xbox and elsewhere in the company are not being replaced by AI. Still, the layoffs come as the tech giant has been pouring billions of dollars into AI infrastructure, and as investors worry the technology could disrupt traditional software. Those concerns helped send Microsoft's stock down 19% in June, its worst monthly performance since the dot-com era. To turn Xbox around, Sharma is now deviating from the unit's old playbook. By flattening management, spinning out some studios, and taking direct oversight of others, such as "Candy Crush" maker King, Pachter said she appears to be trying to bring more discipline to a sprawling games business. "Asha is doing the right thing," he said. "Asha is far more interested in doing what's right than being popular." Additional reporting by Tom Carter. Read the original article on Business Insider

Techmeme
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Reuters: Samsung estimates Q2 operating profit of ~$58.44B, a 19-fold jump from a year earlier and above a ~$57.02B estimate, and revenue up 129% YoY to ~$111.7B  —  Samsung Electronics (005930.KS) on Tuesday forecast a 19-fold jump in second-quarter operating profit from a year earlier, as AI-driven demand continued to lift memory chip prices.

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Kadoink AI

By Eric Stone

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Techmeme
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Kelsey Vlamis / Business Insider: xAI rebrands to SpaceXAI and unveils a new logo; Elon Musk said in May that xAI would be dissolved as a separate company and become the AI products from SpaceX  —  - xAI has officially been rebranded to SpaceXAI.  — The change follows SpaceX's historic IPO and acquisition of xAI earlier this year.

Business Insider
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Elon Musk is leading a group of investors making a bid for OpenAI. Chip Somodevilla/Getty Images xAI has officially been rebranded to SpaceXAI. The change follows SpaceX's historic IPO and acquisition of xAI earlier this year. Elon Musk previously said xAI would be dissolved and folded into SpaceX. xAI is no more. The AI company founded by Elon Musk and acquired by his rocket company earlier this year has officially rebranded to SpaceXAI, debuting a new logo and an update to its username on X. SpaceX acquired xAI — including its flagship chatbot, Grok, as well as X — in February, putting the billionaire's space, AI, and social media products all under one roof. The handle for the xAI account changed to SpaceXAI on Monday. The account also shared a video of the xAI logo getting folded into a new SpaceXAI logo. We are now @SpaceXAI. pic.twitter.com/ema66xDWC9 — SpaceXAI (@SpaceXAI) July 6, 2026 Musk said in May that xAI would be dissolved as a separate company and folded into SpaceX, with the company's AI products branded as SpaceXAI. The rebrand comes after SpaceX's blockbuster IPO in June. SpaceX made history as the largest public offering ever, raising $75 billion with a valuation of around $1.77 trillion, briefly making Musk the world's first trillionaire. While SpaceX is best known for its rockets and extraterrestrial ambitions, its IPO filings revealed just how much it was investing in AI. The company's capital expenditures on AI were $12.7 billion in 2025, or more than three times what it spent on its space and connectivity segments, which include Starlink, its satellite internet service. Its AI segment has been a net loss for the company, but SpaceX believes it has the most potential, saying the total addressable market is the largest "in human history." SpaceX said it plans to deploy "AI compute satellites," or data centers in space, as early as 2028. The company has also landed some big AI infrastructure deals, with Anthropic agreeing to pay SpaceX $1.25 billion a month for access to compute power at its Colossus data centers and Google agreeing to pay $920 million a month. Read the original article on Business Insider

NVIDIA Technical Blog
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Training LLMs at massive scale brings unique infrastructure challenges, especially as jobs span thousands of GPUs and run for extended periods. The longer these... Training LLMs at massive scale brings unique infrastructure challenges, especially as jobs span thousands of GPUs and run for extended periods. The longer these jobs run, the greater the likelihood of encountering unscheduled interruptions or resource fluctuations. Even infrequent device unavailability can have outsized effects on tightly interconnected clusters, resulting in slowdowns for a given… Source

Business Insider
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Donald Trump said Walmart cut prices on a selection of products, including ground beef, for the US's 250th anniversary. Scott Olson/Getty Images Trump said Walmart cut prices on a selection of products for the US's 250th anniversary. Walmart confirmed price reductions on 250 items, including beef, produce, and more. "This is a huge deal for the many millions of Americans who, smartly, shop at Walmart," Trump said. President Donald Trump said Monday that Walmart has agreed to lower prices on a range of products after a request from his administration tied to the nation's 250th anniversary celebrations. In a post on Truth Social, Trump said Walmart would reduce the price of a pound of ground beef by "almost" 15%. He did not provide details on when the discounts would begin or which other products would be included. "This is a huge deal for the many millions of Americans who, smartly, shop at Walmart," Trump wrote. He called the retailer "a truly patriotic Company who loves the U.S.A." Walmart confirmed after Trump's post that it was lowering prices. The company's press release did not mention Trump or the White House; in a possible nod to the anniversary, it said it will make price cuts across "250 items." It was the second time on Monday that the president promoted a specific company. "Go out and buy a Dell computer," he said at the White House on Monday morning, as he highlighted Michael and Susan Dell's $6.25 billion donation to Trump Accounts. The comments raise questions about how much politics is influencing business decisions. Walmart declined to comment on whether the sales are the result of a meeting with the White House. A person familiar with the issue told Business Insider that some of the price reductions were rolled out last week. Here is a list of products that will have lower prices, according to Walmart's statement: 1 lb. 73% Ground Beef Roll, Fresh ($5.94, was $6.74) Fresh Sweet Corn on the Cobb ($0.25 each, was $0.68) Fresh Red Cherries 2.25 lb. bag ($5.63, was $11.18) Great Value Ice Cream 48 fl. oz ($2.50, was $2.97) Lay's Classic Potato Chips 8 oz bag ($2.50, was $2.97) Frito-Lay Family Fun Variety Pack, 18-count ($8.97, was $9.97) Great Value Disposable Paper Plates, 200-count ($8.97, was $9.97) Coca-Cola, Diet Coke and Coca-Cola Zero Sugar 24-packs ($9.97, was $14.97) Pepsi, Diet Pepsi, Dr. Pepper and Diet Mountain Dew 24-packs ($9.97, was $13.97) "This summer, we're making even more investments in price, with thousands of Rollbacks across the products customers are shopping for most including beef, fresh produce and beverages, grills, pools, toys and summer fashion apparel," Julie Barber, Walmart's Executive Vice President and Chief Merchant US, said in the statement. The price cuts will also extend to Sam's Club, according to Walmart's statement. Read the original article on Business Insider