"Once you know a little bit of what happens at the ground-truth level, you can get a better idea of what to do for therapy," Dr. Tononi said.
“一旦你知道一点基本事实层面发生的情况，就可以得到更好的治疗思路，”托诺尼博士说。
2
The effective unsupervised change-detection method is fundamental in many applications in that the suitable ground-truth information is not always available.
由于先验知识并不是很容易获得的，所以在许多实际应用中非监督图象变化检测方法是一种基本方法。
3
The Ares I-X test rocket has more than 700 sensors that will allow NASA to ground-truth some of its calculations about the safety and performance of the rocket.