principle of locality meaning in English

局部性原则

It is believed by these algorithms that very good matches are likely to be found in the vicinity of reasonably good matches . although this assumption might not be necessarily true , it is useful for reducing the computation as the search can be broken down into stages where the algorithm successively narrows down on the regions of good matches . there are a large number of algorithms that make this assumption and these may be classified as algorithms based on the principle of locality
目前用于计算运动向量的快速搜索法经常因为陷入局部最小而不能准确的计算到运动向量或者计算量过大让人不能接受,提高运动向量估计的计算速度对于实时视频压缩编码有着重要的意义,更重要的是要在保证估计精确度的前提下提高提高运动向量估计的计算速度,常见的搜索法往往不能在陷入局部最小和计算量上找到一个合适的平衡点。