Researchers have used the Dark Energy Spectroscopic Instrument to make the largest 3D map of our universe and world-leading measurements of dark energy, the mysterious cause of its accelerating ...

When Hanna Wallach first started testing machine learning models, the tasks were well-defined and easy to evaluate. Did the model correctly identify the cats in an image? Did it accurately predict the ...

The central Mexican city of Xochicalco was established around a.d. 670 atop a 400-foot-tall hill. At the city’s highest level, which was only accessible through three defended porticoes, stands its ...

急性呼吸窘迫综合征（ARDS）患者动脉血氧分压/吸入氧浓度比值（PaO?/FiO?）及柏林评分对越南地区住院预后的预测能力有限 ...