Content that contains a higher density of the search words are ranked above those that have a lower density of the search words. 包含密度较高的搜索单词的内容将排列在包含密度较低的搜索单词的内容之上。
Based on methods of Density and Grid, this approach limits dense cells to the intersection of their sub-dimension dense cells, which shrinks the searched space. 该方法采用基于密度和基于网格的方法，将高维密集单元的搜索限制在子空间密集单元的交集中，缩小了搜索空间。
