local extremum的用法和樣例：
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.
網路的學習過程是一種混沌優化演算法，可有效避免普通神經網路的局部極值和假飽和現象的發生。 - 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.
當解逼近當前極小點的后，動態方程又能使解逃逸局部極值，使其具有全局尋優能力。
