A clustering result evaluating algorithm is presented in a gravitational way, where all the data points in the data space are regarded as the particles assigned with unit mass. 为了定量分析聚类算法的聚类结果,提出了基于引力概念的聚类质量评估算法。
That means if two bodies are two units apart the gravitational force is a quarter of what it would be if they were one unit apart. 假设有两个独立的物体,他们之间的距离为两个单位,那么它们之间的引力就是四分之一。