local extremum的用法和样例：
例句
- The learning algorithm is a process of chaos optimization, which can make the network avoid the local minima problem and false saturation phenomenon.
网络的学习过程是一种混沌优化算法，可有效避免普通神经网络的局部极值和假饱和现象的发生。 - At the same time it can make the solution escape local extreme value and cause the overall optimization capacity when the solution approximates the minimum point.
当解逼近当前极小点的后，动态方程又能使解逃逸局部极值，使其具有全局寻优能力。
