Technology
Can't stop humming that tune? Thank math.
Can't stop humming that tune? A lot goes into the successful'earworms,' including mathematical symmetry. Breakthroughs, discoveries, and DIY tips sent six days a week. While Super Bowl LX is over, the big game still echoes in the minds of many viewers. It's not your fault if a 30-second advertisement spot's melodic hook continues to keep you up at night, however.
OpenAI's Sam Altman: Global AI regulation 'urgently' needed
OpenAI's Sam Altman: Global AI regulation'urgently' needed OpenAI CEO Sam Altman says the world "urgently" needs global regulation of fast-evolving AI, calling for an international oversight body. The "democratisation of AI is the only fair and safe path forward," he said. Palestinians in Gaza say'Board of Peace' will further occupation Gaza'stabilization force' commander outlines security plans Trump praises'magnificent' B-2 bombers that struck Iran in 2025 Jordan-Israel relationship'at its worst' after West Bank plans Trump's'Board of Peace' convenes for first time Amid tensions, Ukraine's Chernobyl site remains part of a war zone What we know so far about arrest of UK's former Prince Andrew
Fast Bellman Updates for Wasserstein Distributionally Robust MDPs
Markov decision processes (MDPs) often suffer from the sensitivity issue under model ambiguity. In recent years, robust MDPs have emerged as an effective framework to overcome this challenge. Distributionally robust MDPs extend the robust MDP framework by incorporating distributional information of the uncertain model parameters to alleviate the conservative nature of robust MDPs.
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Figure 1: Histograms of arccoshvi,vji between identified nearest neighbors. Fig.1showsthe9 geodesic distances of the estimated nearest neighbors onS2.10 The parameter for the number of28 eigenvectorsmk is chosen relatively small ( 50) for computational efficiency and to exclude the noise-sensitive29 "high-frequency"eigenvectors.
DHS Opens a Billion-Dollar Tab With Palantir
"If you are interested in helping shape and deliver the next chapter of Palantir's work across DHS, please reach out," a Palantir executive wrote to employees about the massive purchasing agreement. The Department of Homeland Security struck a $1 billion purchasing agreement with Palantir last week, further reinforcing the software company's role in the federal agency that oversees the nation's immigration enforcement . According to contracting documents published last week, the blanket purchase agreement (BPA) awarded "is to provide Palantir commercial software licenses, maintenance, and implementation services department wide." The agreement simplifies how DHS buys software from Palantir, allowing DHS agencies like Customs and Border Protection (CBP) and Immigration and Customs Enforcement (ICE) to essentially skip the competitive bidding process for new purchases of up to $1 billion in products and services from the company. Palantir did not immediately respond to a request for comment.
Help! My Best Friend's Husband Has a Very Strange Set of "Rules." And Now He's Turning Them on Me.
My Best Friend's Husband Has a Very Strange Set of "Rules." Prudie chats with Lizzie O'Leary, host of What Next: TBD, about a man whose "quirky" demands are getting concerning. I'm struggling with the behavior of my close friend's husband, and I'm worried about how it's affecting her. He is the most indecisive person I have ever encountered. Any time we visit, he has to plan our schedule down to the minute, but even then, he constantly changes his mind.
Orbital AI data centers could work, but they might ruin Earth in the process
Samsung Galaxy Unpacked 2026 is Feb. 25 A single collision could cause a cascading effect in orbit. Elon Musk's plan to launch millions of AI satellites could be disastrous for the planet. At the start of the month, Elon Musk announced that two of his companies -- SpaceX and xAI -- were merging, and would jointly launch a constellation of 1 million satellites to operate as orbital data centers. Musk's reputation might suggest otherwise, but according to experts, such a plan isn't a complete fantasy. However, if executed at the scale suggested, some of them believe it would have devastating effects on the environment and the sustainability of low Earth Earth orbit.