基本代数 meaning in Chinese

elementary algebra

In 1998 , zhou , xiong and zhu improved sh algorithm by reducing this complexity to 2n - lg n . in this paper , we make further improvement . the overall complexity of computing distances is reduced to 3n - lg n 2 , which is only half that of sh algorithm
但是距离的计算量相对于其他基本代数或者逻辑操作来说开销比较大,所以如何降低整个算法过程中距离的计算次数成为我们考虑的重点，我们改进的目标就是使得计算距离的复杂度尽可能的小。