The key to successful identification is to find a model structure that is flexible enough to capture the essential features of the system, yet simple enough to be estimated from the available data.
成功辨识的关键是找到一个足够灵活的模型结构，以捕捉系统的基本特征，同时又足够简单，可以从现有数据中估计出来。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
"A child who reads will be an adult who thinks."
Sustainability isn't an option—it's the only path forward for any responsible business.
The most revolutionary tool in modern agriculture isn't a machine—it's the farmer's knowledge passed down through generations.
Investors should avoid chasing past performance.
这是考验人们灵魂的时刻。