We prove uniqueness of the barycenter of a population of GPs, as well as convergence of the metric and the barycenter of their finite-dimensional counterparts.

Evaluating a policy by deploying it in the real world can be risky and costly.

New analysis reveals why America's $5 trillion AI race against China proves as consequential as the Cold War, citing economic dominance and national security at stake.

The Public Says'No Thanks' The maker of the eCoffee Energyband says it electrically stimulates your nerves to keep you alert. Researchers are skeptical, and critics see it as a way for China's bosses to keep workers productive. Forget coffee, you can now stay alert by strapping on a wristband that lightly zaps you awake. That's what eCoffee Energyband, a Chinese gadget that sells for just over $100, is claiming to do. First released in late 2023, the product is a lightweight wearable with two electrode pads that sit against the inner wrist.

Kernel methods have recently attracted resurgent interest, showing performance competitive with deep neural networks in tasks such as speech recognition.

In contrast, in a game theoretic setting, myopic strategic interactions among players lead to a Nash equilibrium or locally optimal configuration rather than highest scoring global configuration.

However, for some applications, this assumption is inappropriate.

There are two major types of uncertainty one can model.

Efficiently aggregating data from different sources is a challenging problem, particularly when samples from each source are distributed differently.

In that role, Mr. Lutnick has twisted the arms of American allies, dangling policy favors in exchange for investments in U.S. industrial projects. At times, these tactics have created opportunities for his family's clients to gain access to much-needed foreign capital, The Times found. Mr. Lutnick, for example, demanded that the South Korean government invest billions of dollars in U.S. industry to reduce tariffs. Mr. Neugebauer is vying for a share of those investment dollars to build the data center that Mr. Lutnick's family is also helping to finance. The job of commerce secretary has always been to promote American industry through deal-making at home and abroad, and the position has traditionally been populated with titans of industry who were expected to bring a business sensibility to meetings filled with career government workers.