Scientists are trying to tame the chaos of modern artificial intelligence by doing something very old fashioned: drawing a ...

Abstract: To address high dynamics, strong uncertainty, and decision-dimensional explosion in air combat, this paper constructs a PPO-based hierarchical tactical decision-making algorithm (PHT-PPO) ...

Abstract: Accurate assisted localization is crucial for autonomous aerial vehicles (AAVs) in the presence of global positioning system (GPS) attacks, as some compromised AAVs lack accurate position ...

There is indeed a vast literature on the design and analysis of decision tree algorithms that aim at optimizing these parameters. This paper contributes to this important line of research: we propose ...

Astronomers are drawing attention to a Christmas Tree-shaped cluster of stars glowing inside one of the Milky Way’s most active stellar nurseries. Known as the Cosmic Christmas Tree, the cluster sits ...

The article details the observation of NGC 2264, designated as the Christmas Tree Cluster, on December 24. This celestial object is identified as a magnitude 3.9 combination open cluster and ...

Glowing clouds of gas and dust form the Christmas Tree cluster in the star-forming region NGC 2264, where newborn stars light up the surrounding nebula like celestial ornaments. The Cone Nebula crowns ...

Cluster of young stars known as the Christmas Tree Cluster and Collagen fibers and fat cells appearing under a laser microscope Credit: Chandra X-ray Observatory and Nikon Small World contest -SWNS A ...

A microscopic "Christmas tree" is a seasonal highlight of a remarkable science project that sees a quirky comparison of vast and small. Curated by NASA's Chandra X-ray Observatory, a series of ...

While there really aren’t any Christmas constellations in the sky any time of the year, there’s a wonderful sign of the season waiting for you in the Pottsville early evening eastern sky right now. It ...