In many modern sciences, data often exist on curved geometric spaces rather than flat planes, posing challenges for traditional statistical tools. These curved spaces are called Riemannian manifolds.

Abstract: We investigate discrete-time mean–variance portfolio selection problems viewed as a Markov decision process. We transform the problems into a new model with a deterministic transition ...

Learn how to calculate and display variance inside Excel pivot tables. Perfect for financial analysis, reporting, and data insights. #ExcelTips #PivotTable #Variance #ProductivityHacks Senate ...

If you get a raise next year, there’s a chance your tax rate won’t change thanks to new tax brackets recently released by the Internal Revenue Service. And if you earn the same amount or less, your ...

Abstract: Under the background of the wanton spread of the coronavirus disease (COVID-19), the pandemic is changing and hitting lives all over the world. Fortunately, Spatio-temporal processes bear ...

Zcash (ZEC), once a forgotten privacy coin, has made a remarkable comeback. In October’s fearful market conditions, it has become one of the most notable assets investors are watching closely. The ...

MACON, Ga. — When you store photos, documents, music, movies and other online files in the “cloud,” where exactly does it go? The “cloud” can sometimes feel like an imaginary idea– a place where our ...