the state space的用法和样例：
例句
- A backpropagation neural network is adopted to generalize the large input state space to reduce memory requirement.
为降低存储需求，算法引入了反向传播神经网络用于泛化其输入状态空间。 - Approximation methods for problems involving large state spaces are also presented and discussed.
牵涉大型状态空间问题的近似方法也将被呈现与讨论。
