Goldman Sachs upgraded its rating on Roblox (RBLX) to "buy" from a previous investment rating of "neutral" on Friday.

Abstract: With the continuous development of the Web API ecosystem, mashup-oriented API recommendation gets a lot of attention. Collaborative filtering, deep learning and their combination based ...

Abstract: Reconfigurable holographic surface (RHS) exhibits low energy consumption and low cost, which attracts extensive attention. Since uncrewed aerial vehicle (UAV) is limited by power and volume, ...